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.

Question

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.

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.

asked Oct 3, 2021 by anonymous

1 Answer

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Last Answer : a) Transmyocardial laser revascularization TNR procedures usually involves making 20 to 40 channels in ventricular muscle. It is thought that some blood flows into the channels, decreasing the ischemia directly. ... healing a wound and new blood vessels form as a result of the inflammatory process.

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.

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.

Description : 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 ( ... d) Preload Preload is the pressure created by a volume of blood within a ventricle before contraction.

Last Answer : 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.

Use of ritodrine to arrest premature labour can cause the following complications except: A. Tachycardia B. Fall in blood pressure C. Hypoglycaemia D. Pulmonary edema

Description : Use of ritodrine to arrest premature labour can cause the following complications except: A. Tachycardia B. Fall in blood pressure C. Hypoglycaemia D. Pulmonary edema

Last Answer : C. Hypoglycaemia

Erythromycin should not be given to patient being treated with terfenadine because (a) Erythromycin induces the metabolism of terfenadine (b) Dangerous ventricular arrhythmias can occur (c) Terfenadine inhibits metabolism of erythromycin (d) Terfenadine antagonizes the antimicrobal action of erythromycin

Description : Erythromycin should not be given to patient being treated with terfenadine because (a) Erythromycin induces the metabolism of terfenadine (b) Dangerous ventricular arrhythmias can occur ... inhibits metabolism of erythromycin (d) Terfenadine antagonizes the antimicrobal action of erythromycin

Last Answer : Ans: B

Erythromycin should not be given to a patient being treated with terfenadine because: A. Erythromycin induces the metabolism of terfenadine B. Dangerous ventricular arrhythmias can occur C. Terfenadine inhibitis metabolism of erythromycin D. Terfenadine antagonizes the antimicrobial action of erythromycin

Description : Erythromycin should not be given to a patient being treated with terfenadine because: A. Erythromycin induces the metabolism of terfenadine B. Dangerous ventricular arrhythmias ... Terfenadine inhibitis metabolism of erythromycin D. Terfenadine antagonizes the antimicrobial action of erythromycin

Last Answer : B. Dangerous ventricular arrhythmias can occur

Which of the wave shapes shown in the illustration is termed a square wave? EL-0088 A. A B. B C. C D. D

Description : Which of the wave shapes shown in the illustration is termed a square wave? EL-0088 A. A B. B C. C D. D

Last Answer : Answer: A

Which of the wave shapes shown in the illustration is termed a sharp pulse or spiked wave? EL-0088 A. A B. B C. C D. D

Description : Which of the wave shapes shown in the illustration is termed a sharp pulse or spiked wave? EL-0088 A. A B. B C. C D. D

Last Answer : Answer: D

Which of the wave shapes shown in the illustration is termed a ramp or sawtooth wave? EL-0088 A. A B. B C. C D. D

Description : Which of the wave shapes shown in the illustration is termed a ramp or sawtooth wave? EL-0088 A. A B. B C. C D. D

Last Answer : Answer: B

anonymous · Answer 1 · 2021-10-03T10:33:10+0000

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).

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