Why are PVCs that occur more than 6 per minute increasing in frequently multifocal or occurring in pairs more than isolated PVCs?

Why are PVCs that occur more than 6 per minute increasing in frequently multifocal or occurring in pairs more than isolated PVCs?
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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).

Thrombolytic therapy has become a useful adjunct in the management of peripheral arterial occlusion. In this setting, direct intraarterial administration rather than intravenous has been advocated to decrease the risk of systemic bleeding. Which of the following true statement(s) concerning the use of thrombolytic agents for arterial occlusion is/are true? a. A standard technique involves infusing high-dose urokinase, 4000 units per minute for 1–2 hours, directly into the clot by a catheter embedded in the thrombus b. If progress is made, further fibrinolytic therapy is given at 1000 to 2000 units per minute until clot lysis has occurred c. The usual infusion time by the above-stated technique is usually in excess of 24 hours d. Successful clot lysis occurs more frequently in arterial graf

Description : Thrombolytic therapy has become a useful adjunct in the management of peripheral arterial occlusion. In this setting, direct intraarterial administration rather than intravenous has been advocated ... may be indicated for situations where complete clot evacuation cannot be accomplished surgically

Last Answer : Answer: a, b, e The most popular method for intraarterial thrombolytic therapy for arterial occlusion involves passing a guidewire through the thrombus with arteriographic guidance and ... acute arterial occlusion) or when distal vasculative is occluded and precludes appropriate inflow patency

Bleeding complications are frequently associated with fibrinolytic therapy. Which of the following statement(s) concerning complications of fibrinolytic therapy is/are true? a. Careful monitoring of prothrombin time and aPTT time are necessary to avoid bleeding complications b. A level of serum fibrinogen less than 100 mg/dl is associated with an increased risk of bleeding c. Recent (less than 10 days) major surgery is a contraindication to systemic but not regional fibrinolytic therapy d. A patient with a cerebrovascular event occurring less than two months ago can be treated with fibrinolytic therapy if head CT scan is normal

Description : Bleeding complications are frequently associated with fibrinolytic therapy. Which of the following statement(s) concerning complications of fibrinolytic therapy is/are true? a. Careful monitoring of prothrombin time ... months ago can be treated with fibrinolytic therapy if head CT scan is normal

Last Answer : Answer: b Fibrinolytic therapy induces a hemostatic defect through a combination of factors. Hypofibrinogenemia and fibrin degradation products inhibit fibrin polymerization and, in combination ... is considered a major relative contraindication to either regional or systemic thrombolytic therapy

In dictionary techniques for data compaction, which approach of building dictionary is used for the prior knowledge of probability of the frequently occurring patterns? a. Static Dictionary b. Adaptive Dictionary c. both a and b d. None of the above

Description : In dictionary techniques for data compaction, which approach of building dictionary is used for the prior knowledge of probability of the frequently occurring patterns? a. Static Dictionary b. Adaptive Dictionary c. both a and b d. None of the above

Last Answer : a. Static Dictionary

Does anyone else get PVC's?

Description : Does anyone else get PVC's?

Last Answer : I should add it doesn’t beat fast when I get the PVC’s it just misses beats, when I took myself to ER, however, it was 140 but I was super high on anxiety! oh and prescribed Xanax ( I must go get that!)

Do impacted wisdom teeth have any connection to PVCs?

Description : Do impacted wisdom teeth have any connection to PVCs?

Last Answer : I don’t think that there is any connection at all. I am glad things ae going well for you though.

How to ignore belligerent PVC's(heart palpitations) when trying to sleep?

Description : How to ignore belligerent PVC's(heart palpitations) when trying to sleep?

Last Answer : Isn’t this the thing they need to go in through a vein in your leg and freeze the part of your heart responsible for the problem?

Frame Relay provides ________. A) PVCs B) SVCs C) either (a) or (b) D) neither (a) nor (b)

Description : Frame Relay provides ________. A) PVCs B) SVCs C) either (a) or (b) D) neither (a) nor (b)

Last Answer : Frame Relay

The removal of paint from electrical equipment, such as generators, should be cautiously undertaken because ____________. A. the mechanical shock of paint removal lessens the dielectric strength of the insulation B. the paint dust is composed of abrasive and semi-conducting materials which impair insulation C. paint dust buildup has a tendency to cause corrosion D. phase windings frequently become isolated from each other due to dust interference at the terminals

Description : The removal of paint from electrical equipment, such as generators, should be cautiously undertaken because ____________. A. the mechanical shock of paint removal lessens the dielectric strength ... phase windings frequently become isolated from each other due to dust interference at the terminals

Last Answer : Answer: B

Which two of the following changes (i –iv) usually tend to occur in the plain dwellers when they move to high altitudes (3,500 m or more)? (i) Increase in red blood cell size (ii) Increase in red blood cell production (iii)Increased breathing rate (iv) Increase in thrombocyte count Changes occurring are (a) (ii) and (iii) (b) (iii) and (iv) (c) (i) and (iv) (d) (i) and (ii).

Description : Which two of the following changes (i -iv) usually tend to occur in the plain dwellers when they move to high altitudes (3,500 m or more)? (i) Increase in red blood cell size (ii) Increase in red blood cell production (iii) ... and (iii) (b) (iii) and (iv) (c) (i) and (iv) (d) (i) and (ii).

Last Answer : (a) (ii) and (iii)

A specific BRCA1 cancer-predisposing gene mutation seems to occur more frequently among women of which descent? a) Ashkanazi Jewish Expression of the BRCA1 gene is an example of inheritance in the development of breast cancer. b) Mediterranean Glucose-6-phosphate dehydrogenase deficiency (G6PD) is a common enzyme abnormality that affects millions of people throughout the world, especially those of Mediterranean, South East Asian, African, Middle Eastern, and Near Eastern origin.

Description : A specific BRCA1 cancer-predisposing gene mutation seems to occur more frequently among women of which descent? a) Ashkanazi Jewish Expression of the BRCA1 gene is an example of ... of treatment for tuberculosis) are at significantly increased risk for developing isoniazid-induced hepatitis.

Last Answer : a) Ashkanazi Jewish Expression of the BRCA1 gene is an example of inheritance in the development of breast cancer.

Four members of a band are walking to a night concert. They decide to take a shortcut, but must cross a bridge. Luckily they have one flashlight. Because of the varying size of their instruments, it takes each member a different amount of time to cross the bridge - it takes the first person one minute, the second person two minutes, the third person five minutes and the fourth person ten minutes. They must cross the bridge in pairs, travelling at the slower speed so if the one minute person went with the ten minute person, it would take a total of ten minutes. Since there is only one flashlight, one person must come back across the bridge, then another pair can cross. They only have 17 minutes to cross the bridge and still get to the concert on time. What order should they cross to get eve

Description : Four members of a band are walking to a night concert. They decide to take a shortcut, but must cross a bridge. Luckily they have one flashlight. Because of the varying size of their instruments, it ... bridge and still get to the concert on time. What order should they cross to get eve -Riddles

Last Answer : First, the one minute person and the two minute person must cross the bridge, for a total of two minutes. Then the one minute person should come back with flashlight - total of three ... minutes) and gets the one minute person and they cross together bringing the total to seventeen minutes.

How many times divisions will occur in an isolated tip cell to form 128 cells ?

Description : How many times divisions will occur in an isolated tip cell to form 128 cells ?

Last Answer : How many times divisions will occur in an isolated tip cell to form 128 cells ? A. 128 B. 127 C. 32 D. 7

Which one of the following aspects is an exclusive characteristic of living things? (a) Isolated metabolic reactions occur in vitro (b) Increase in mass from inside only (c) Perception of events happening in the environment and their memory. (d) Increase in mass by accumulation of material both on surface as well as internally

Description : Which one of the following aspects is an exclusive characteristic of living things? (a) Isolated metabolic reactions occur in vitro (b) Increase in mass from inside only (c) Perception of events ... memory. (d) Increase in mass by accumulation of material both on surface as well as internally

Last Answer : (d) Increase in mass by accumulation of material both on surface as well as internally.

An isolated system is one in which  (a) mass does not cross boundaries of the system, though energy may do so  (b) neither mass nor energy crosses the boundaries of the system  (c) both energy and mass cross the boundaries of the system  (d) mass crosses the boundary but not the energy  (e) thermodynamic reactions do not occur.

Description : An isolated system is one in which  (a) mass does not cross boundaries of the system, though energy may do so  (b) neither mass nor energy crosses the boundaries of the system  (c) both ... system  (d) mass crosses the boundary but not the energy  (e) thermodynamic reactions do not occur.

Last Answer : Answer : b

The number of cycles per second occurring in AC voltage is known as the _____________. A. phase angle B. frequency C. wave form D. half mode

Description : The number of cycles per second occurring in AC voltage is known as the _____________. A. phase angle B. frequency C. wave form D. half mode

Last Answer : Answer: B

Increasing evidence has implicated gram-negative bacterial lipopolysaccharide (LPS endotoxin) as the portion of the gram-negative bacterial cell membrane responsible for many, if not all the toxic effects that occur during gram-negative bacterial sepsis. The following statement(s) is/are true concerning LPS and the host response. a. The LPS molecule can in itself cause physiologic responses similar to that seen during gram-negative bacterial sepsis b. LPS triggers host macrophages to release a variety of cytokines including TNF-a, IL-1a, and IL-1b, IL-6, and IFN-a c. Excessive cytokine production is not associated with detrimental consequences d. TNFa and IL-1b appear to be the primary mediators within the host, exerting deleterious effects on the host when excessive amounts reach the syst

Description : Increasing evidence has implicated gram-negative bacterial lipopolysaccharide (LPS endotoxin) as the portion of the gram-negative bacterial cell membrane responsible for many, if not all the ... host, exerting deleterious effects on the host when excessive amounts reach the systemic circulation

Last Answer : Answer: a, b, d The LPS molecule exerts diverse effects on the mammalian host. Immunologic responses to LPS include nonspecific polyclonal B-cell proliferation, macrophage activation and ... deleterious effects on the host only after large amounts are secreted and reach the systemic circulation

When the patient with known angina pectoris complains that he is experiencing chest pain more frequently even at rest, the period of pain is longer, and it takes less stress for the pain to occur, the nurse recognizes that the patient is describing a) unstable angina. Unstable angina is also called crescendo or pre-infarction angina and indicates the need for a change in treatment.

Description : When the patient with known angina pectoris complains that he is experiencing chest pain more frequently even at rest, the period of pain is longer, and it takes less stress for the ... or refractory angina produces severe, incapacitating chest pain that does not respond to conventional treatment.

Last Answer : a) unstable angina. Unstable angina is also called crescendo or pre-infarction angina and indicates the need for a change in treatment.

A 92-year-old woman is an inpatient in the geriatric unit. She has multivascular dementia. She is more confused and agitated. She has been given lorazepam 4 mg intramuscularly. She is now unconscious with a generalized tonic clonic seizure and a respiratory rate of 6 breaths per minute. Which of the following could be used to reverse the effects of the lorazepam? A. Activated charcoal B. Flumazenil C. N-acetyl cysteine D. Naloxone E. Protamine sulphate

Description : A 92-year-old woman is an inpatient in the geriatric unit. She has multivascular dementia. She is more confused and agitated. She has been given lorazepam 4 mg intramuscularly. She is now unconscious ... A. Activated charcoal B. Flumazenil C. N-acetyl cysteine D. Naloxone E. Protamine sulphate 

Last Answer : B. Flumazenil 

Earthquakes occur most frequently at -----? A. Plate boundaries (Answer) B. Plate surface C. Ocean beds D. All of the above

Description : Earthquakes occur most frequently at -----? A. Plate boundaries (Answer) B. Plate surface C. Ocean beds D. All of the above

Last Answer : A. Plate boundaries (Answer)

Which problem can frequently occur in backward chaining algorithm? a) Repeated states b) Incompleteness c) Complexity d) Both Repeated states & Incompleteness

Description : Which problem can frequently occur in backward chaining algorithm? a) Repeated states b) Incompleteness c) Complexity d) Both Repeated states & Incompleteness

Last Answer : d) Both Repeated states & Incompleteness

Earthquakes occur most frequently at a) Plate surface b) Plate boundaries c) Plate vacuum d) Ocean beds

Description : Earthquakes occur most frequently at a) Plate surface b) Plate boundaries c) Plate vacuum d) Ocean beds

Last Answer : b) Plate boundaries

How do I return the first 10 values that occur most frequently?

Description : How do I return the first 10 values that occur most frequently?

Last Answer : CREATE VIEW v1

Which of the following statements about septic shock are true? A. A circulating myocardial depressant factor may account for the cardiac dysfunction sometimes seen with shock due to sepsis or SIRS. B. A cardiac index (CI) of 6 liters per minute per square meter of body surface, a pulmonary capillary wedge pressure of 15 mm. Hg, and a systemic vascular resistance index (SVRI) of 800 dynes-sec/(cm 5-m 2) is a hemodynamic profile consistent with septic shock. C. An increase in SvO 2 in septic patients may be explained by the finding of anatomic arteriovenous shunts. D. Results of human trials employing antimediator therapy, such as antiendotoxin antibodies, IL-1 receptor antagonist, and tumor necrosis factor (TNF) antibodies, have confirmed animal studies that demonstrate a significant im

Description : Which of the following statements about septic shock are true? A. A circulating myocardial depressant factor may account for the cardiac dysfunction sometimes seen with shock due to sepsis or ... animal studies that demonstrate a significant improvement in survival with the use of such agents.

Last Answer : Answer: AB DISCUSSION: Shock due to sepsis or SIRS frequently manifests as a hyperdynamic cardiovascular response, consisting of an elevated CI and a decreased SVR or SVRI. Occasionally, ... been encouraging thus far in human clinical trials, despite the promising results from many animal studies

Consider a uniprocessor system where new processes arrive at an average of five processes per minute and each process needs an average of 6 seconds of service time. What will be the CPU utilization ? (A) 80 % (B) 50 % (C) 60 % (D) 30 %

Description : Consider a uniprocessor system where new processes arrive at an average of five processes per minute and each process needs an average of 6 seconds of service time. What will be the CPU utilization ? (A) 80 % (B) 50 % (C) 60 % (D) 30 %

Last Answer : (B) 50 %

Two taps can fill a bunker in 40 and 48 mins respectively and a waste tap can empty 6 gallons per minute. All the 3 taps working together can fill the bunker in 30 mind. The capacity of the bunker is. A) 480 B) 480 C) 680 D) 780

Description : Two taps can fill a bunker in 40 and 48 mins respectively and a waste tap can empty 6 gallons per minute. All the 3 taps working together can fill the bunker in 30 mind. The capacity of the bunker is. A) 480 B) 480 C) 680 D) 780 

Last Answer : A Work done by the waste tap in 1 min = 1/30 – (1/40 + 1/48) = 8 – (6+5)/240 = 8-11/240 = -3/240 = -1/80 (negative sign means emptying) Volume of 1/80 part = 60 gallons Volume of whole = (6*80) = 480 gallons

Which one of the following cannot be explained on the basis of Mendel’s law of dominance? (a) The discrete unit controlling a particular character is called a factor. (b) Out of one pair of factors one is dominant, and the other recessive. (c) Alleles do not show any blending and both the characters recover as such in F2 generation. (d) Factors occur in pairs.

Description : Which one of the following cannot be explained on the basis of Mendel's law of dominance? (a) The discrete unit controlling a particular character is called a factor. (b) Out of one pair of ... any blending and both the characters recover as such in F2 generation. (d) Factors occur in pairs.

Last Answer : (c) Alleles do not show any blending and both the characters recover as such in F2 generation

The cooci which mostly occur in single or pairs are A- Streptococci B- Diplococci C- Tetracocci D- None of these

Description : The cooci which mostly occur in single or pairs are A- Streptococci B- Diplococci C- Tetracocci D- None of these

Last Answer : Diplococci

The cooci which mostly occur in single or pairs are A- Streptococci B- .DiplococciC- .Tetracocci D- None of these

Description : The cooci which mostly occur in single or pairs are A- Streptococci B- .Diplococci C- .Tetracocci D- None of these

Last Answer : .Diplococci

is the measure of whether a plant is now using more or less energy to manufacture its product than it did in the past. a) Total Dissolved Solids (TDS). c) Plant Energy Performance (PEP) b) Revolutions Per Minute (RPM) d) Option (a) and (b)

Description : is the measure of whether a plant is now using more or less energy to manufacture its product than it did in the past. a) Total Dissolved Solids (TDS). c) Plant Energy Performance (PEP) b) Revolutions Per Minute (RPM) d) Option (a) and (b)

Last Answer : Plant Energy Performance (PEP)

is the measure of whether a plant is now using more or less energy to manufacture its product than it did in the past. a) Total Dissolved Solids (TDS) b) Plant Energy Performance (PEP) c) Revolutions Per Minute (RPM) d) Option (a) and (b)

Description : is the measure of whether a plant is now using more or less energy to manufacture its product than it did in the past. a) Total Dissolved Solids (TDS) b) Plant Energy Performance (PEP) c) Revolutions Per Minute (RPM) d) Option (a) and (b)

Last Answer : Plant Energy Performance (PEP)

reduction in thermal resistance during heat transfer does not occur in the (A) Convection heat transfer by stirring the fluid and cleaning the heating surface (B) Conduction heat transfer by reduction in the material thickness and increase in the thermal conductivity (C) Radiation heat transfer by increasing the temperature and reducing the emissivity (D) None of these

Description : reduction in thermal resistance during heat transfer does not occur in the (A) Convection heat transfer by stirring the fluid and cleaning the heating surface (B) Conduction heat transfer by ... Radiation heat transfer by increasing the temperature and reducing the emissivity (D) None of these

Last Answer : Option C

Law of octaves says that if the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of elements

Description : Law of octaves says that if the chemical elements are arranged according to increasing atomic weight, those with similar physical and chemical properties occur after each interval of elements

Last Answer : 7

Which of the following is/are acceptable reasons for the transfusion of red blood cells based on currently available data? A. Rapid, acute blood loss with unstable vital signs but no available hematocrit or hemoglobin determination. B. Symptomatic anemia: orthostatic hypotension, severe tachycardia (greater than 120 beats per minute), evidence of myocardial ischemia, including angina. C. To increase wound healing. D. A hematocrit of 26% in an otherwise stable, asymptomatic patient.

Description : Which of the following is/are acceptable reasons for the transfusion of red blood cells based on currently available data? A. Rapid, acute blood loss with unstable vital signs but no available ... increase wound healing. D. A hematocrit of 26% in an otherwise stable, asymptomatic patient.

Last Answer : Answer: AB DISCUSSION: Currently accepted guidelines for the transfusion of packed red blood cells include acute ongoing blood loss, as might occur in an injured patient, and the development of ... not be given based solely or predominantly on a numerical value such as a hematocrit of 28%

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.

A post-traumatic seizure classified as early occurs a) within 1-7 days of injury. Posttraumatic seizures are classified as immediate (occurring within 24 hours of injury), early, (occurring within 1-7 days of injury) or late, occurring more than 7 days following injury.

Description : A post-traumatic seizure classified as early occurs a) within 1-7 days of injury. Posttraumatic seizures are classified as immediate (occurring within 24 hours of injury), early, ( ... surgery. Posttraumatic seizures occurring more than 7 days following surgery are classified as late seizures.

Last Answer : a) within 1-7 days of injury. Posttraumatic seizures are classified as immediate (occurring within 24 hours of injury), early, (occurring within 1-7 days of injury) or late, occurring more than 7 days following injury.

If you had the ability to siphon money from someone just by touch, your hand must remain on them and you get 10k per minute of contact, who would you touch and how would you convince them to let you keep your hand on them?

Description : If you had the ability to siphon money from someone just by touch, your hand must remain on them and you get 10k per minute of contact, who would you touch and how would you convince them to let you keep your hand on them?

Last Answer : Start up a glory hole in a wealthy metropolitan area

How to calculate the rate of rotation, in revolutions per minute.

Description : How to calculate the rate of rotation, in revolutions per minute.

Last Answer : answer:I’m going with 1.56 revs/min. Circumference = pi*d = 376.8 m Rate of rotation = 9.8 m/s, so it takes 38.4s to complete one rev. 60/38.4 = 1.56

Why aren't those who stutter & stammer charged a lower per-minute rate, on long distance telephone calls?

Description : Why aren't those who stutter & stammer charged a lower per-minute rate, on long distance telephone calls?

Last Answer : jack: then using that logic, would someone who is a slow talker be eligible for a lower rate, also? to the phone company, a minute is a minute, an hour is an hour, a month is a month.

A 300 ft. train is traveling 300 ft. per minute must travel through a 300 ft. long tunnel. How long will it take the train to travel through the tunnel? -Riddles

Description : A 300 ft. train is traveling 300 ft. per minute must travel through a 300 ft. long tunnel. How long will it take the train to travel through the tunnel? -Riddles

Last Answer : Two minutes. It takes the front of the train one minute and the rest of the train will take two minutes to clear the tunnel.

What A scuba driver’s depth was changed from –20 ft to –63 ft in 10 minutes. Find his average change in depth per minute?

Description : What A scuba driver’s depth was changed from –20 ft to –63 ft in 10 minutes. Find his average change in depth per minute?

Last Answer : 4.3 feet per minute-20 - -63 = 4343/10 = 4.3

What is the degree of longitude equal to one degree per minute ?

Description : What is the degree of longitude equal to one degree per minute ?

Last Answer : Length per minute is equal to 1 / 6th of a degree.

How many times per minute is the pulse of a healthy person ?

Description : How many times per minute is the pulse of a healthy person ?

Last Answer : The pulse of a healthy person is 70-72 beats per minute .

How many rapes take place per minute in India ?

Last Answer : Every thirteen minutes in India there is one rape Source: BBC Bangla

How many times per minute does an elderly person breathe ?

Last Answer : An elderly person breathes 12-16 times per minute.

How much blood is supplied to the brain per minute ?

Last Answer : The blood supply to the brain is 350 ml per minute.

What is the normal average heart rate per minute ?

Last Answer : Normal average heart rate per minute 72.