Which of the following terms indicates the amount of blood pumped out of the ventricle with each contraction of the heart? a) Stroke volume Stroke volume is the amount of blood pumped out (ejected) with each contraction of the heart (heart beat). Stroke volume times heart rate equals cardiac output.

Question

Which of the following terms indicates the amount of blood pumped out of the ventricle with each contraction of the heart? a) Stroke volume Stroke volume is the amount of blood pumped out (ejected) with each contraction of the heart (heart beat). Stroke volume times heart rate equals cardiac output.

Which of the following terms indicates the amount of blood
pumped out of the ventricle with each contraction of the heart?
a) Stroke volume
Stroke volume is the amount of blood pumped out (ejected) with each
contraction of the heart (heart beat). Stroke volume times heart rate
equals cardiac output.
b) Afterload
Afterload is the amount of resistance to ejection of blood from a
ventricle.
c) Cardiac output
Cardiac output is the amount of blood pumped out of the heart in one
minute.
d) Preload
Preload is the pressure created by a volume of blood within a ventricle
before contraction.

asked Oct 3, 2021 by anonymous

1 Answer

Related questions

Which of the following terms describes the amount of blood ejected per heartbeat? a) Stroke volume Stroke volume is determined by preload, afterload, and contractility. b) Cardiac output Cardiac output is the amount of blood pumped by each ventricle during a given period and is computed by multiplying the stroke volume of the heart by the heart rate. c) Ejection fraction Ejection Fraction is the percentage of the end-diastolic volume that is ejected with each stroke, measured at 42–50% in the normal heart. d) Afterload Afterload is defined as the pressure that the ventricular myocardium must overcome to eject blood during systole and is one of the determinants of stroke volume.

Description : Which of the following terms describes the amount of blood ejected per heartbeat? a) Stroke volume Stroke volume is determined by preload, afterload, and contractility. b) Cardiac output Cardiac output ... must overcome to eject blood during systole and is one of the determinants of stroke volume.

Last Answer : a) Stroke volume Stroke volume is determined by preload, afterload, and contractility.

Assertion` :` Cardiac output is the volume of blood pumped out by each ventricle per minute. Reason `:` Ther cardiac output of an athlete will be much

Description : Assertion` :` Cardiac output is the volume of blood pumped out by each ventricle per minute. Reason `:` Ther cardiac output of an athlete will be much

Last Answer : Assertion` :` Cardiac output is the volume of blood pumped out by each ventricle per minute. Reason `: ... . D. If both Assertion & Reason are false.

Which of the following vasoactive drugs used in treating shock results in reduced preload and afterload, reducing oxygen demand of the heart? a) Nitroprusside (Nipride) A disadvantage of nitroprusside is that it causes hypotension. b) Dopamine (Intropin) Dopamine improves contractility, increases stroke volume, and increases cardiac output. c) Epinephrine (adrenaline) Epinephrine improves contractility, increases stroke volume, and increases cardiac output. d) Methoxamine (Vasoxyl) Methoxamine increases blood pressure by vasoconstriction.

Description : Which of the following vasoactive drugs used in treating shock results in reduced preload and afterload, reducing oxygen demand of the heart? a) Nitroprusside (Nipride) A disadvantage ... increases cardiac output. d) Methoxamine (Vasoxyl) Methoxamine increases blood pressure by vasoconstriction.

Last Answer : a) Nitroprusside (Nipride) A disadvantage of nitroprusside is that it causes hypotension.

When the nurse observes an ECG tracing on a cardiac monitor with a pattern in lead II and observes a bizarre, abnormal shape to the QRS complex, the nurse has likely observed which of the following ventricular dysrhythmias? Premature ventricular contraction A PVC is an impulse that starts in a ventricle before the next normal sinus impulse. a) Ventricular bigeminy Ventricular bigeminy is a rhythm in which every other complex is a PVC. b) Ventricular tachycardia Ventricular tachycardia is defined as three or more PVCs in a row, occurring at a rate exceeding 100 beats per minute. c) Ventricular fibrillation Ventricular fibrillation is a rapid but disorganized ventricular rhythm that causes ineffective quivering of the ventricles.

Description : When the nurse observes an ECG tracing on a cardiac monitor with a pattern in lead II and observes a bizarre, abnormal shape to the QRS complex, the nurse has likely ... Ventricular fibrillation is a rapid but disorganized ventricular rhythm that causes ineffective quivering of the ventricles.

Last Answer : a) Ventricular bigeminy Ventricular bigeminy is a rhythm in which every other complex is a PVC.

When the nurse notes that the post cardiac surgery patient demonstrates low urine output (< 25 ml/hr) with high specific gravity (> 1.025), the nurse suspects: a) Inadequate fluid volume Urine output of less than 25 ml/hr may indicate a decrease in cardiac output. A high specific gravity indicates increased concentration of solutes in the urine which occurs with inadequate fluid volume. b) Normal glomerular filtration Indices of normal glomerular filtration are output of 25 ml or greater per hour and specific gravity between 1.010 and 1.025. c) Overhydration Overhydration is manifested by high urine output with low specific gravity. d) Anuria The anuric patient does not produce urine.

Description : When the nurse notes that the post cardiac surgery patient demonstrates low urine output (< 25 ml/hr) with high specific gravity (> 1.025), the nurse suspects: a) Inadequate fluid volume Urine ... by high urine output with low specific gravity. d) Anuria The anuric patient does not produce urine.

Last Answer : a) Inadequate fluid volume Urine output of less than 25 ml/hr may indicate a decrease in cardiac output. A high specific gravity indicates increased concentration of solutes in the urine which occurs with inadequate fluid volume.

The nurse auscultates the apex beat at which of the following anatomical locations? a) Fifth intercostal space, midclavicular line The left ventricle is responsible for the apex beat or the point of maximum impulse, which is normally palpable in the left midclavicular line of the chest wall at the fifth intercostal space. b) Mid-sternum The right ventricle lies anteriorly, just beneath the sternum. c) 2” to the left of the lower end of the sternum Use of inches to identify the location of the apex beat is inappropriate based upon variations in human anatomy. d) 1” to the left of the xiphoid process Auscultation below and to the left of the xiphoid process will detect gastrointestinal sounds, but not the apex beat of the heart.

Description : The nurse auscultates the apex beat at which of the following anatomical locations? a) Fifth intercostal space, midclavicular line The left ventricle is responsible for the apex beat or the point of ... of the xiphoid process will detect gastrointestinal sounds, but not the apex beat of the heart.

Last Answer : a) Fifth intercostal space, midclavicular line The left ventricle is responsible for the apex beat or the point of maximum impulse, which is normally palpable in the left midclavicular line of the chest wall at the fifth intercostal space.

In the autonomic regulation of blood pressure (a) Cardiac output is maintained constant at the expense of other hemodynamic variables (b) Elevation of blood pressure results in elevated aldosterone secretion (c) Baroreceptor nerve fibers docrease firing rate when arterial pressure increases (d) Stroke volume and mean arterial blood pressure are the primary direct determinants of cardiac output (e) A condition that reduces the sensitivity of the sensory baroreceptor nerve endings might cause an increase in sympathetic discharge

Description : In the autonomic regulation of blood pressure (a) Cardiac output is maintained constant at the expense of other hemodynamic variables (b) Elevation of blood pressure results in elevated ... the sensitivity of the sensory baroreceptor nerve endings might cause an increase in sympathetic discharge

Last Answer : Ans: D

Central venous pressure is measured in which of the following heart chambers? a) Right atrium The pressure in the right atrium is used to assess right ventricular function and venous blood return to the heart. b) Left atrium The left atrium receives oxygenated blood from the pulmonary circulation. c) Left ventricle The left ventricle receives oxygenated blood from the left atrium. d) Right ventricle The right ventricle is not the central collecting chamber of venous circulation.

Description : Central venous pressure is measured in which of the following heart chambers? a) Right atrium The pressure in the right atrium is used to assess right ventricular function and venous blood return ... d) Right ventricle The right ventricle is not the central collecting chamber of venous circulation.

Last Answer : a) Right atrium The pressure in the right atrium is used to assess right ventricular function and venous blood return to the heart.

When right ventricle of human heart contract then blood pumped into `:-`

Description : When right ventricle of human heart contract then blood pumped into `:-`

Last Answer : When right ventricle of human heart contract then blood pumped into `:-` A. All parts of body B. Lungs C. Pulmonary veins D. Systemic aorta

Which of the following is a modifiable risk factor for transient ischemic attacks and ischemic strokes? a) History of smoking. Modifiable risk factors for TIAs and ischemic stroke include hypertension, Type 1 diabetes, cardiac disease, history of smoking, and chronic alcoholism.

Description : Which of the following is a modifiable risk factor for transient ischemic attacks and ischemic strokes? a) History of smoking. Modifiable risk factors for TIAs and ischemic stroke include hypertension, Type ... ) Advanced age Advanced age, gender, and race are non-modifiable risk factors for stroke.

Last Answer : a) History of smoking. Modifiable risk factors for TIAs and ischemic stroke include hypertension, Type 1 diabetes, cardiac disease, history of smoking, and chronic alcoholism.

Which of the following statements about continuous cardiac output monitoring are true? A. Continuous cardiac output monitoring may unmask events not detected by intermittent cardiac output measurements. B. Continuous cardiac output monitoring by the thermodilution method requires continuous infusion of fluid injectate at a constant rate and temperature. C. The major advantage of the Fick method over the thermodilution method of calculating cardiac output is that it is noninvasive, requiring only the determination of oxygen consumption by respiratory gas analysis. D. The technique of thoracic electrical bioimpedance utilizes sensors to determine stroke volume by detecting changes in resistance to a small, applied alternating current.

Description : Which of the following statements about continuous cardiac output monitoring are true? A. Continuous cardiac output monitoring may unmask events not detected by intermittent cardiac output measurements. ... stroke volume by detecting changes in resistance to a small, applied alternating current.

Last Answer : Answer: AD DISCUSSION: Various techniques are available to measure cardiac output continuously. The advantages of continuous cardiac output monitoring, as compared with intermittent methods, are (1) ... function of the stroke volume, which then can be used to calculate the cardiac output

Which of the following does not physiologically increase in pregnancy Options: 1) Stroke Volume 2) Cardiac output 3) Intravascular Volume 4) Blood Pressure

Description : Which of the following does not physiologically increase in pregnancy Options: 1) Stroke Volume 2) Cardiac output 3) Intravascular Volume 4) Blood Pressure

Last Answer : Correct Answer: 4) Blood Pressure

All of the following statements about hemorrhagic shock are true except: A. Following hemorrhagic shock, there is an initial interstitial fluid volume contraction. B. Dopamine, or a similar inotropic agent, should be given immediately for resuscitation from hemorrhagic shock, to increase cardiac output and improve oxygen delivery to hypoperfused tissues. C. The use of colloid solutions or hypertonic saline solutions is contraindicated for treatment of hemorrhagic shock. D. In hemorrhagic shock, a narrowed pulse pressure is commonly seen before a fall in systolic blood pressure.

Description : All of the following statements about hemorrhagic shock are true except: A. Following hemorrhagic shock, there is an initial interstitial fluid volume contraction. B. Dopamine, or a similar inotropic ... shock, a narrowed pulse pressure is commonly seen before a fall in systolic blood pressure.

Last Answer : Answer: BC DISCUSSION: Hemorrhagic shock is associated with a contraction of the interstitial fluid compartment because of precapillary vasoconstriction and reabsorption of interstitial fluid ... definitive evidence that such solutions are better than standard crystalloid solutions is lacking

Which of the following terms refers to tarry, black stools? a) Melena Melena indicates blood in the stool. b) Hemarthrosis Hemarthrosis is bleeding into a joint. c) Hematemesis Hematemesis is vomiting blood. d) Pyrosis Pyrosis refers to heartburn.

Description : Which of the following terms refers to tarry, black stools? a) Melena Melena indicates blood in the stool. b) Hemarthrosis Hemarthrosis is bleeding into a joint. c) Hematemesis Hematemesis is vomiting blood. d) Pyrosis Pyrosis refers to heartburn.

Last Answer : a) Melena Melena indicates blood in the stool.

The major common determinant of myocardial oxygen consumption is (a) Blood volume (b) Cardiac output (c) Diastolic blood pressure (d) Heart rate (e) Myocardial fiber tension

Description : The major common determinant of myocardial oxygen consumption is (a) Blood volume (b) Cardiac output (c) Diastolic blood pressure (d) Heart rate (e) Myocardial fiber tension

Last Answer : Ans: E

What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL ? (a) 125 beats per minute (b) 50 beats per minute (c) 75 beats per minute (d) 100 beats per minute

Description : What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL ? (a) 125 beats per minute (b) 50 beats per minute (c) 75 beats per minute (d) 100 beats per minute

Last Answer : (d) 100 beats per minute

When the nurse observes that the patient’s systolic blood pressure is less than 80–90 mm Hg, respirations are rapid and shallow, heart rate is over 150 beats per minute, and urine output is less than 30 cc per hour, the nurse recognizes that the patient is demonstrating which stage of shock? a) Compensatory In compensatory shock, the patient’s blood pressure is normal, respirations are above 20, and heart rate is above 100 but below 150. b) Progressive In progressive shock, the patient’s skin appears mottled and mentation demonstrates lethargy. c) Refractory In refractory or irreversible shock, the patient requires complete mechanical and pharmacologic support. d) Irreversible In refractory or irreversible shock, the patient requires complete mechanical and pharmacologic support.

Description : When the nurse observes that the patient's systolic blood pressure is less than 80-90 mm Hg, respirations are rapid and shallow, heart rate is over 150 beats per minute, and ... d) Irreversible In refractory or irreversible shock, the patient requires complete mechanical and pharmacologic support.

Last Answer : a) Compensatory In compensatory shock, the patient’s blood pressure is normal, respirations are above 20, and heart rate is above 100 but below 150.

if you suspect atrial flutter : Consider digoxin if not already in use because it frequently increases the conduction ratio and decreases the ventricular rate. , Avoid adrenergic and atropinic agents during sedation or anesthesia for cardioversion. Ketamine is relatively contraindicatedthe cause of premature ventricular contraction? decrease O2 supply to the muscle decrease blood supply to the muscle the heart trying to beat fast ______________________________

Description : if you suspect atrial flutter : Consider digoxin if not already in use because it frequently increases the conduction ratio and decreases the ventricular rate. , Avoid adrenergic and ... to the muscle decrease blood supply to the muscle the heart trying to beat fast ______________________________

Last Answer : decrease O2 supply to the muscle

Which of the following terms refers to muscle tension being unchanged with muscle shortening and joint motion? a) Isotonic contraction Exercises such as swimming and bicycling are isotonic. b) Isometric contraction Isometric contraction is characterized by increased muscle tension, unchanged muscle length, and no joint motion. c) Contracture Contracture refers to abnormal shortening of muscle, joint, or both. d) Fasciculation Fasciculation refers to involuntary twitch of muscle fibers.

Description : Which of the following terms refers to muscle tension being unchanged with muscle shortening and joint motion? a) Isotonic contraction Exercises such as swimming and bicycling are isotonic. b) ... , joint, or both. d) Fasciculation Fasciculation refers to involuntary twitch of muscle fibers.

Last Answer : a) Isotonic contraction Exercises such as swimming and bicycling are isotonic.

The patient with cardiac failure is taught to report which of the following symptoms to the physician or clinic immediately? a) Persistent cough Persistent cough may indicate an onset of left-heart failure. b) Increased appetite Loss of appetite should be reported immediately. c) Weight loss Weight gain should be reported immediately. d) Ability to sleep through the night Frequent urination, causing interruption of sleep, should be reported immediately.

Description : The patient with cardiac failure is taught to report which of the following symptoms to the physician or clinic immediately? a) Persistent cough Persistent cough may indicate an onset of ... sleep through the night Frequent urination, causing interruption of sleep, should be reported immediately.

Last Answer : a) Persistent cough Persistent cough may indicate an onset of left-heart failure.

Which term is used to describe the ability of the heart to initiate an electrical impulse? a) Automaticity Automaticity is the ability of specialized electrical cells of the cardiac conduction system to initiate an electrical impulse. b) Contractility Contractility refers to the ability of the specialized electrical cells of the cardiac conduction system to contract in response to an electrical impulse. c) Conductivity Conductivity refers to the ability of the specialized electrical cells of the cardiac conduction system to transmit an electrical impulse from one cell to another. d) Excitability Excitability refers to the ability of the specialized electrical cells of the cardiac conduction system to respond to an electrical impulse.

Description : Which term is used to describe the ability of the heart to initiate an electrical impulse? a) Automaticity Automaticity is the ability of specialized electrical cells of the cardiac conduction ... the specialized electrical cells of the cardiac conduction system to respond to an electrical impulse.

Last Answer : a) Automaticity Automaticity is the ability of specialized electrical cells of the cardiac conduction system to initiate an electrical impulse.

Which of the following terms refers to the symptom of gastroesophageal reflux disease (GERD) which is characterized by a burning sensation in the esophagus? a) Pyrosis Pyrosis refers to a burning sensation in the esophagus and indicates GERD. b) Dyspepsia Indigestion is termed dyspepsia. c) Dysphagia Difficulty swallowing is termed dysphagia. d) Odynophagia Pain on swallowing is termed odynophagia.

Description : Which of the following terms refers to the symptom of gastroesophageal reflux disease (GERD) which is characterized by a burning sensation in the esophagus? a) Pyrosis Pyrosis refers to ... Dysphagia Difficulty swallowing is termed dysphagia. d) Odynophagia Pain on swallowing is termed odynophagia.

Last Answer : a) Pyrosis Pyrosis refers to a burning sensation in the esophagus and indicates GERD.

patient with rhumatic heart disease and had mitral valve stenosis Mitral vave diameter less than 1 mm In order to maintain COP what will happen : Left atrial hypertrophy and decrease pulmonary prusser Left atrial hypertrophy and champer dilatation RV hypertrophy and decrease pulmonary prusser RV hypertrophy and champer dilatationchoices in other words a- Dilatation in the atrium with chamber hypertrophy b- Dilatation in the ventricle with chamber hypertrophy c- atrium dilatation with decrease pressure of contraction d- ventricle dilatation with decrease pressure of contraction .

Description : patient with rhumatic heart disease and had mitral valve stenosis Mitral vave diameter less than 1 mm In order to maintain COP what will happen : Left atrial hypertrophy and decrease ... dilatation with decrease pressure of contraction d- ventricle dilatation with decrease pressure of contraction .

Last Answer : Dilatation in the atrium with chamber hypertrophy

The action of quinidine differs from that of digitalis in (a) Decreasing irritability of cardiac muscle (b) Preventing passage of impulses to the ventricle (c) Increasing irritability of heart muscle (d) Reducing conductivity (e) None of the above

Description : The action of quinidine differs from that of digitalis in (a) Decreasing irritability of cardiac muscle (b) Preventing passage of impulses to the ventricle (c) Increasing irritability of heart muscle (d) Reducing conductivity (e) None of the above

Last Answer : Ans: A

Which of the following ECG waveforms characterizes conduction of an electrical impulse through the left ventricle? a) QRS complex The QRS complex represents ventricular depolarization b) P wave The P wave is an ECG characteristic reflecting conduction of an electrical impulse through the atria. c) PR interval The PR interval is a component of an ECG tracing reflecting conduction of an electrical impulse through the AV node. d) QT interval The QT interval is an ECG characteristic reflecting the time from ventricular depolarization to repolarization.

Description : Which of the following ECG waveforms characterizes conduction of an electrical impulse through the left ventricle? a) QRS complex The QRS complex represents ventricular depolarization b) P ... QT interval is an ECG characteristic reflecting the time from ventricular depolarization to repolarization.

Last Answer : a) QRS complex The QRS complex represents ventricular depolarization

Which of the following manifestations is often the earliest sign of malignant hyperthermia? a) Tachycardia (heart rate above 150 beats per minute) Tachycardia is often the earliest sign of malignant hyperthermia. b) Hypotension Hypotension is a later sign of malignant hyperthermia. c) Elevated temperature The rise in temperature is actually a late sign that develops rapidly. d) Oliguria Scant urinary output is a later sign of malignant hyperthermia.

Description : Which of the following manifestations is often the earliest sign of malignant hyperthermia? a) Tachycardia (heart rate above 150 beats per minute) Tachycardia is often the earliest sign of malignant ... develops rapidly. d) Oliguria Scant urinary output is a later sign of malignant hyperthermia.

Last Answer : a) Tachycardia (heart rate above 150 beats per minute) Tachycardia is often the earliest sign of malignant hyperthermia.

In human being, haemorrhage causes a. venous constriction b. decreased blood flow to the skin c. a fall in cardiac output d. splenic contraction

Description : In human being, haemorrhage causes a. venous constriction b. decreased blood flow to the skin c. a fall in cardiac output d. splenic contraction

Last Answer : splenic contraction

A patient who has had a previous stroke and is taking warfarin tells the nurse that he started taking garlic to help reduce his blood pressure. The nurse knows that garlic when taken together with warfarin a) can greatly increase the international normalization ratio (INR) and therefore increase the risk of bleeding. Garlic and warfarin taken together can greatly increase the INR, increasing the risk of bleeding.

Description : A patient who has had a previous stroke and is taking warfarin tells the nurse that he started taking garlic to help reduce his blood pressure. The nurse knows that garlic when taken ... headaches. Garlic and warfarin taken together can greatly increase the INR, increasing the risk of bleeding.

Last Answer : a) can greatly increase the international normalization ratio (INR) and therefore increase the risk of bleeding. Garlic and warfarin taken together can greatly increase the INR, increasing the risk of bleeding.

The following are true about cardiac contraction: a. the P wave initiates the atrial contraction b. atrial contribution to ventricular filling is most effective at fast heart rate. c. b wave is generated by atrial contraction d. fourth heart sound occurs during atrial contraction

Description : The following are true about cardiac contraction: a. the P wave initiates the atrial contraction b. atrial contribution to ventricular filling is most effective at fast heart rate. c. b wave is generated by atrial contraction d. fourth heart sound occurs during atrial contraction

Last Answer : fourth heart sound occurs during atrial contraction

In which type of shock does the patient experiences a mismatch of blood flow to the cells? a) Distributive Distributive or vasogenic shock results from displacement of blood volume, creating a relative hypovolemia. b) Cardiogenic Cardiogenic shock results from the failure of a heart as a pump. c) Hypovolemic In hypovolemic shock, there is a decrease in the intravascular volume. d) Septic In septic shock, overwhelming infection results in a relative hypovolemia.

Description : In which type of shock does the patient experiences a mismatch of blood flow to the cells? a) Distributive Distributive or vasogenic shock results from displacement of blood volume, ... intravascular volume. d) Septic In septic shock, overwhelming infection results in a relative hypovolemia.

Last Answer : a) Distributive Distributive or vasogenic shock results from displacement of blood volume, creating a relative hypovolemia.

Assertion `:` Neural signals through the sympathetic nerves can increase the rate of heart beat, the strength fo ventriculrar contraction and thereby

Description : Assertion `:` Neural signals through the sympathetic nerves can increase the rate of heart beat, the strength fo ventriculrar contraction and thereby

Last Answer : Assertion `:` Neural signals through the sympathetic nerves can increase the rate of heart beat, the ... D. If both Assertion & Reason are false.

Premature ventricular contractions are considered precursors of ventricular tachycardia when they a) occur at a rate of more than six per minute. When PVCs occur at a rate of more than six per minute they indicate increasing ventricular irritability and are considered forerunners of ventricular tachycardia (VT). b) occur during the QRS complex. PVCs are dangerous when they occur on the T wave. c) have the same shape. PVCs are dangerous when they are multifocal (have different shapes). d) are paired with a normal beat. A PVC that is paired with a normal beat is termed bigeminy.

Description : Premature ventricular contractions are considered precursors of ventricular tachycardia when they a) occur at a rate of more than six per minute. When PVCs occur at a rate of more than six per minute they ... paired with a normal beat. A PVC that is paired with a normal beat is termed bigeminy.

Last Answer : a) occur at a rate of more than six per minute. When PVCs occur at a rate of more than six per minute they indicate increasing ventricular irritability and are considered forerunners of ventricular tachycardia (VT).

Which of the following terms refers to an abnormal decrease in white blood cells, red blood cells, and platelets? a) Pancytopenia Pancytopenia may be congenital or acquired. b) Anemia Anemia refers to decreased red cell mass. c) Leukopenia Leukopenia refers to a less-than-normal amount of WBCs in circulation. d) Thrombocytopenia Thrombocytopenia refers to a lower-than-normal platelet count.

Description : Which of the following terms refers to an abnormal decrease in white blood cells, red blood cells, and platelets? a) Pancytopenia Pancytopenia may be congenital or acquired. b) Anemia ... of WBCs in circulation. d) Thrombocytopenia Thrombocytopenia refers to a lower-than-normal platelet count.

Last Answer : a) Pancytopenia Pancytopenia may be congenital or acquired.

Which of the following hormones is secreted by the posterior pituitary? a) Vasopressin Vasopressin causes contraction of smooth muscle, particularly blood vessels.

Description : Which of the following hormones is secreted by the posterior pituitary? a) Vasopressin Vasopressin causes contraction of smooth muscle, particularly blood vessels. b) Calcitonin Calcitonin is secreted ... cortex. d) Somatostatin Somatostatin is released by the anterior lobe of the pituitary.

Last Answer : a) Vasopressin Vasopressin causes contraction of smooth muscle, particularly blood vessels.

When the nurse observes that the postoperative patient demonstrates a constant low level of oxygen saturation, although the patient’s breathing appears normal, the nurse identifies that the patient may be suffering which type of hypoxemia? a) Subacute Supplemental oxygen may be indicated. b) Hypoxic Hypoxic hypoxemia results from inadequate breathing. c) Episodic Episodic hypoxemia develops suddenly, and the patient may be at risk for myocardial ischemia, cerebral dysfunction, and cardiac arrest. d) Anemic Anemic hypoxemia results from blood loss during surgery.

Description : When the nurse observes that the postoperative patient demonstrates a constant low level of oxygen saturation, although the patient's breathing appears normal, the nurse identifies that the patient may ... , and cardiac arrest. d) Anemic Anemic hypoxemia results from blood loss during surgery.

Last Answer : a) Subacute Supplemental oxygen may be indicated.

Which of the following terms is used to describe a tachycardia characterized by abrupt onset, abrupt cessation, and a QRS of normal duration? a) Paroxysmal atrial tachycardia PAT is often caused by a conduction problem in the AV node and is now called AV nodal reentry tachycardia. b) Sinus tachycardia Sinus tachycardia occurs when the sinus node regularly creates an impulse at a faster-than-normal rate. c) Atrial flutter Atrial flutter occurs in the atrium and creates an atrial rate between 250-400 times per minute. d) Atrial fibrillation Atrial fibrillation causes a rapid, disorganized, and uncoordinated twitching of atrial musculature.

Description : Which of the following terms is used to describe a tachycardia characterized by abrupt onset, abrupt cessation, and a QRS of normal duration? a) Paroxysmal atrial tachycardia PAT ... fibrillation Atrial fibrillation causes a rapid, disorganized, and uncoordinated twitching of atrial musculature.

Last Answer : a) Paroxysmal atrial tachycardia PAT is often caused by a conduction problem in the AV node and is now called AV nodal reentry tachycardia.

When digoxin is used in a patient with congestive heart failure (CHF), it works by exerting a positive effect on (a) Stroke volume (b) Total peripheral resistance (c) Heart rate (d) Blood pressure (e) Venous return

Description : When digoxin is used in a patient with congestive heart failure (CHF), it works by exerting a positive effect on (a) Stroke volume (b) Total peripheral resistance (c) Heart rate (d) Blood pressure (e) Venous return

Last Answer : Ans: A

When assisting the patient to interpret a negative HIV test result, the nurse informs the patient that the results mean a) his body has not produced antibodies to the AIDS virus. A negative test result indicates that antibodies to the AIDS virus are not present in the blood at the time the blood sample for the test is drawn.

Description : When assisting the patient to interpret a negative HIV test result, the nurse informs the patient that the results mean a) his body has not produced antibodies to the AIDS virus. A negative test ... When antibodies to the AIDS virus are detected in the blood, the test is interpreted as positive.

Last Answer : a) his body has not produced antibodies to the AIDS virus. A negative test result indicates that antibodies to the AIDS virus are not present in the blood at the time the blood sample for the test is drawn.

In post-myocardial infarction and other high cardiovascular risk subjects but without hypertension or heart failure, prolonged ACE inhibitor medication has been found to: A. Increase the chances of sudden cardiac death B. Reduce the incidence of fatal as well as nonfatal myocardial infarction or stroke C. Lower the risk of developing heart failure and diabetes D. Both ‘B‘ and ‘C’

Description : In post-myocardial infarction and other high cardiovascular risk subjects but without hypertension or heart failure, prolonged ACE inhibitor medication has been found to: A. Increase the chances of sudden cardiac death ... Lower the risk of developing heart failure and diabetes D. Both B and C'

Last Answer : D. Both ‘B‘ and ‘C

Health promotion efforts to decrease the risk for ischemic stroke involve encouraging a healthy lifestyle including a) a low fat, low cholesterol diet, and increasing exercise. Health promotion efforts to decrease the risk for ischemic stroke involve encouraging a healthy lifestyle including a low fat, low cholesterol diet, and increasing exercise.

Description : Health promotion efforts to decrease the risk for ischemic stroke involve encouraging a healthy lifestyle including a) a low fat, low cholesterol diet, and increasing exercise. Health promotion ... encouraging a healthy lifestyle including a low fat, low cholesterol diet, and increasing exercise.

Last Answer : a) a low fat, low cholesterol diet, and increasing exercise. Health promotion efforts to decrease the risk for ischemic stroke involve encouraging a healthy lifestyle including a low fat, low cholesterol diet, and increasing exercise.

A patient has had neurologic deficits lasting for more than 24 hours, and now the symptoms are resolving. The nurse concludes that the patient has had which type of stroke? a) Reversible ischemic neurologic deficit With a reversible ischemic neurologic deficit, the patient has more pronounced signs and symptoms that last more than 24 hours; symptoms resolve in a matter of days without any permanent neurologic deficit.

Description : A patient has had neurologic deficits lasting for more than 24 hours, and now the symptoms are resolving. The nurse concludes that the patient has had which type of stroke? a) Reversible ... and symptoms have stabilized with no indication of further progression of the hypoxic insult to the brain.

Last Answer : a) Reversible ischemic neurologic deficit With a reversible ischemic neurologic deficit, the patient has more pronounced signs and symptoms that last more than 24 hours; symptoms resolve in a matter of days without any permanent neurologic deficit.

Which of the following insults or abnormalities most commonly causes ischemic stroke? a) Cocaine use Cocaine is a potent vasoconstrictor and may result in a life-threatening reaction, even with the individual’s first unprescribed use of the drug.

Description : Which of the following insults or abnormalities most commonly causes ischemic stroke? a) Cocaine use Cocaine is a potent vasoconstrictor and may result in a life-threatening reaction ... strokes. d) Intracerebral aneurysm rupture Intracerebral aneurysm rupture is associated with hemorrhagic strokes.

Last Answer : a) Cocaine use Cocaine is a potent vasoconstrictor and may result in a life-threatening reaction, even with the individual’s first unprescribed use of the drug.

When the valve used in valve replacement surgery is made from the patient’s own heart valve, which of the following terms is used? a) Autograft An example of autograft is found when the surgeon excises the pulmonic valve and uses it for an aortic valve replacement. b) Allograft Allograft refers to replacement using human tissue and is a synonym for homograft. c) Homograft Homograft refers to replacement using human tissue and is a synonym for allograft. d) Xenograft Xenograft refers to replacement of tissue from animal tissue.

Description : When the valve used in valve replacement surgery is made from the patient's own heart valve, which of the following terms is used? a) Autograft An example of autograft is found when the ... and is a synonym for allograft. d) Xenograft Xenograft refers to replacement of tissue from animal tissue.

Last Answer : a) Autograft An example of autograft is found when the surgeon excises the pulmonic valve and uses it for an aortic valve replacement.

For individuals known to be dying by virtue of age and/or diagnoses, which of the following signs indicate approaching death: a) Increased restlessness As the oxygen supply to the brain decreases, the patient may become restless. b) Increased wakefulness As the body weakens, the patient will sleep more and begin to detach from the environment. c) Increased eating For many patients, refusal of food is an indication that they are ready to die. d) Increased urinary output Based upon decreased intake, urinary output generally decreases in amount and frequency.

Description : For individuals known to be dying by virtue of age and/or diagnoses, which of the following signs indicate approaching death: a) Increased restlessness As the oxygen supply to the ... Increased urinary output Based upon decreased intake, urinary output generally decreases in amount and frequency.

Last Answer : a) Increased restlessness As the oxygen supply to the brain decreases, the patient may become restless.

Oncotic pressure refers to a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin. b) the number of dissolved particles contained in a unit of fluid. Osmolality refers to the number of dissolved particles contained in a unit of fluid. c) the excretion of substances such as glucose through increased urine output. Osmotic diuresis occurs when the urine output increases due to excretion of substances such as glucose. d) the amount of pressure needed to stop flow of water by osmosis. Osmotic pressure is the amount of pressure needed to stop the flow of water by osmosis.

Description : Oncotic pressure refers to a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin. b) the number of dissolved particles contained in a ... . Osmotic pressure is the amount of pressure needed to stop the flow of water by osmosis.

Last Answer : a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin.

In terms of the mass of material ejected into the atmosphere, what is the name of the largest volcanic eruption of this century, and where was it located?

Description : In terms of the mass of material ejected into the atmosphere, what is the name of the largest volcanic eruption of this century, and where was it located?

Last Answer : ANSWER: MOUNT PINATUBO, PHILIPPINES

Vasoactive drugs which cause the arteries and veins to dilate, thereby shunting much of the intravascular volume to the periphery and causing a reduction in preload and afterload include agents such as a) Sodium nitroprusside (Nipride) Sodium nitroprusside is used in the treatment of cardiogenic shock. b) Norepinephrine (Levophed) Norepinephrine (Levophed) is a vasopressor that is used to promote perfusion to the heart and brain. c) Dopamine (Inotropin) Dopamine (Inotropin) tends to increase the workload of the heart by increasing oxygen demand; thus, it is not administered early in the treatment of cardiogenic shock. d) Furosemide (Lasix) Furosemide (Lasix) is a loop diuretic that reduces intravascular fluid volume.

Description : Vasoactive drugs which cause the arteries and veins to dilate, thereby shunting much of the intravascular volume to the periphery and causing a reduction in preload and afterload include agents ... Furosemide (Lasix) Furosemide (Lasix) is a loop diuretic that reduces intravascular fluid volume.

Last Answer : a) Sodium nitroprusside (Nipride) Sodium nitroprusside is used in the treatment of cardiogenic shock.

In which stage of COPD is the forced expiratory volume (FEV1) < 30%? a) III Stage III patients demonstrate FEV1 < 30% with respiratory failure or clinical signs of right heart failure b) II Stage II patients demonstrate FEV1 between > 30% and 80% c) I Stage I is mild COPD with FEV1 < 70%. d) O Stage O is characterized by normal spirometry

Description : In which stage of COPD is the forced expiratory volume (FEV1) < 30%? a) III Stage III patients demonstrate FEV1 < 30% with respiratory failure or clinical signs of right heart failure b) II Stage II ... I Stage I is mild COPD with FEV1 < 70%. d) O Stage O is characterized by normal spirometry

Last Answer : a) III Stage III patients demonstrate FEV1 < 30% with respiratory failure or clinical signs of right heart failure

Which of the following colloids is expensive but rapidly expands plasma volume? a) Albumin Albumin is a colloid that requires human donors, is limited in supply, and can cause congestive heart failure. b) Dextran Dextran is a colloid, synthetic plasma expander that interferes with platelet aggregation and is not recommended for hemorrhagic shock. c) Lactated Ringers Lactated ringers is a crystalloid, not a colloid. d) Hypertonic Saline Hypertonic saline is a crystalloid, not a colloid.

Description : Which of the following colloids is expensive but rapidly expands plasma volume? a) Albumin Albumin is a colloid that requires human donors, is limited in supply, and can cause congestive heart failure ... , not a colloid. d) Hypertonic Saline Hypertonic saline is a crystalloid, not a colloid.

Last Answer : a) Albumin Albumin is a colloid that requires human donors, is limited in supply, and can cause congestive heart failure.

Which of the following terms is used to describe hemorrhage from the nose? a) Epistaxis Epistaxis is due to rupture of tiny, distended vessels in the mucous membrane of any area of the nose. b) Xerostomia Xerostomia refers to dryness of the mouth. c) Rhinorrhea Rhinorrhea refers to drainage of a large amount of fluid from the nose. d) Dysphagia Dysphagia refers to difficulties in swallowing.

Description : Which of the following terms is used to describe hemorrhage from the nose? a) Epistaxis Epistaxis is due to rupture of tiny, distended vessels in the mucous membrane of any area of the nose. b ... of a large amount of fluid from the nose. d) Dysphagia Dysphagia refers to difficulties in swallowing.

Last Answer : a) Epistaxis Epistaxis is due to rupture of tiny, distended vessels in the mucous membrane of any area of the nose.

anonymous · Answer 1 · 2021-10-03T10:47:49+0000

a) Stroke volume
Stroke volume is the amount of blood pumped out (ejected) with each
contraction of the heart (heart beat). Stroke volume times heart rate
equals cardiac output.

Which of the following terms indicates the amount of blood pumped out of the ventricle with each contraction of the heart? a) Stroke volume Stroke volume is the amount of blood pumped out (ejected) with each contraction of the heart (heart beat). Stroke volume times heart rate equals cardiac output.

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

Answer :

Please log in or register to add a comment.

Related questions