FREE SURGERY AND STUDY GAMES ABOUT FUNCTIONS

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FREE SURGERY AND STUDY GAMES ABOUT FUNCTIONS

OF HEART EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -113 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: which of the following most accurately describes the vagus nerve?

Answer:

parasympathetic.Question 2: which of the following is not considered a "great vessel"?

Answer:

left anterior descending artery

Question 3: systole and diastole describe the function of the

Answer:

myocardium

Question 4: which of the following drugs is sympathomimetric?

Answer:

beta1-adrenergic agonist

Question 5: which of the following refers to a positive intropic effect?

Answer:

an increased myocardial contractile force Question 6: Starling's law of the heart relates force of myocardial contraction with:

Answer:

preload

Question 7: atropine is anticholinergic and antimuscarinic and therefore

Answer:

is used to treat bradydysrhythmias such as heart block and prolonged P-R interval

Question 8: which of the following must precede ventricular contraction?

Answer:

ventricular depolarization

Question 9: atropine is a muscarinic antagonist and is therefore used to

Answer:

relieve bradycardia Question 10: which of the following is true about the left ventricular myocardium?

Answer:

contraction pumps blood into the aorta Question 11: which layer of the heart also lines the valves and is continuous with blood vessels?

Answer:

endocardium Question 12: which of the following is least likely to be used in the treatment of ventricular failure and pulmonary edema?

Answer:

peripheral vasoconstrictor such as norepinephrine, (levophed)

Question 13: which of the following is descriptive of the vagus nerve?

Answer:

parasympathetic.Question 14: increased return of the blood to the heart stretches the muscle, thereby:

Answer:

increasing stroke volume Question 15: activation of the muscarinic receptors by acetylcholine:

Answer:

slows heart rate

Question 16: which of the following is least related to a bradycardia?

Answer:

greater than 60 beats/min

Question 17: which of the following describes Starling's law of the heart?

Answer:

all are correct

Question 18: which of the following is most likely to increase stroke volume?

Answer:

A (+) inotropic drug Question 19: which structure is not perfused by blood that flows from the pulmonary capillaries to the aorta?

Answer:

right atrium Question 20: which of the following is not the result of the firing of the sympathetic nerves on the heart?

Answer:

vagally induced bradycardia

Question 21: during ventricular filling, the:

Answer:

ventricles are relaxed

Question 22: which of the following is true of the myocardium?

Answer:

all are correct

Question 23: which of the following structures receives unoxygenated blood?

Answer:

pulmonary artery

Question 24: which of the following is least related to tachydysrhythmias?

Answer:

vagal discharge Question 25: A drug (e.g., atropine) that blocks the effects of the vagus nerve:

Answer:

increases the heart rate.

Question 26: which of the following does not happen to a ventricle?

Answer:

discharge of the vagal nerve Question 27: the intent is to measure pulmonary wedge pressure, a procedure that requires the advancement of a catheter up to the pulmonary capillaries. the catheter is inserted into the left subclavian vein. identify where it does not pass through

Answer:

pulmonary veins

Question 28: which of the following is the same as end-diastolic volume?

Answer:

preload