Cardiovascular Pharmacology Quiz

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Questions and Answers

What is the primary reason to avoid excessive tachycardia in patients treated with vasopressors or inotropes?

  • To decrease the risk of dysrhythmias.
  • To prevent myocardial ischemia. (correct)
  • To improve coronary vasodilation.
  • To reduce skin necrosis.

What is the primary reason for administering vasopressors via a central vein whenever possible?

  • To prevent skin necrosis.
  • To avoid peripheral extravasation. (correct)
  • To reduce the risk of dysrhythmias.
  • To improve coronary vasodilation.

What is the primary effect of beta-adrenergic receptor stimulation on myocardial oxygen consumption?

  • Variable effect on myocardial oxygen consumption.
  • Increased myocardial oxygen consumption. (correct)
  • Decreased myocardial oxygen consumption.
  • No effect on myocardial oxygen consumption.

What is the purpose of daily electrocardiograms on patients treated with vasopressors or inotropes?

<p>To screen for myocardial ischemia. (C)</p> Signup and view all the answers

What is the recommended dosage range of phentolamine for local treatment of peripheral extravasation of vasopressors?

<p>5 to 10 mg i.m. (C)</p> Signup and view all the answers

What is the sample size of the randomized trial that compared the frequency of dysrhythmias between patients who received dopamine and norepinephrine?

<p>1679 patients (C)</p> Signup and view all the answers

Which of the following is a potential consequence of peripheral extravasation of vasopressors?

<p>Excessive local vasoconstriction (A)</p> Signup and view all the answers

What is the primary reason for administering vasopressors via a central vein whenever possible?

<p>To minimize the risk of infiltration (D)</p> Signup and view all the answers

Which of the following statements is true regarding the frequency of dysrhythmias in patients who received dopamine and norepinephrine?

<p>Dysrhythmias were significantly more common among patients who received dopamine than among those who received norepinephrine. (C)</p> Signup and view all the answers

What is the primary effect of beta-adrenergic receptor stimulation on myocardial oxygen consumption?

<p>It can increase myocardial oxygen consumption. (C)</p> Signup and view all the answers

What is the potential consequence of peripheral extravasation of vasopressors?

<p>Excessive local vasoconstriction with subsequent skin necrosis. (B)</p> Signup and view all the answers

What is the primary reason for administering vasopressors via a central vein whenever possible?

<p>To avoid peripheral extravasation and subsequent skin necrosis. (C)</p> Signup and view all the answers

What is the primary reason to avoid excessive tachycardia in patients treated with vasopressors or inotropes?

<p>Impaired diastolic filling of the coronary arteries. (C)</p> Signup and view all the answers

What is the purpose of daily electrocardiograms on patients treated with vasopressors or inotropes?

<p>To screen for occult ischemia. (A)</p> Signup and view all the answers

What is the recommended dosage range of phentolamine for local treatment of peripheral extravasation of vasopressors?

<p>5 to 10 mg (B)</p> Signup and view all the answers

Which of the following is true regarding the effect of vasopressors on coronary vasodilation?

<p>There is usually coronary vasodilation in response to vasopressors. (B)</p> Signup and view all the answers

What was the percentage of dysrhythmias among patients who received dopamine in the randomized trial?

<p>24.1 percent (A)</p> Signup and view all the answers

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