Pharmacology Vasopressors #2

Question

Which medication would the critical care nurse expect to be ordered for treatment of a client in cardiogenic shock?

Answers

  1. Norepinephrine
    • Rationale:

      This answer is correct because norepinephrine is used during cardiogenic shock, a condition in which the heart suddenly can not pump adequate blood to perfuse the body. Norepinephrine is used to stimulate the heart, vasoconstrict, and increase the blood pressure during hypotension associated with shock.

  2. Isosorbide dinitrate
    • Rationale:

      This answer is not correct because isosorbide dinitrate is a nitrate which vasodilates, causing hypotension. This medication would cause the client to have a lower blood pressure, causing the client to die. Norepinephrine is used to stimulate the heart, vasoconstrict, and increase the blood pressure during hypotension associated with shock.

  3. B-adrenergic blocker
    • Rationale:

      This answer is not correct because B-adrenergic blockers would cause the blood pressure and heart rate to further drop, causing death. Norepinephrine is used to stimulate the heart, vasoconstrict, and increase the blood pressure during hypotension associated with shock.

  4. HMG-CoA reductase inhibitors
    • Rationale:

      This answer is not correct because HMG-CoA reductase inhibitors, also called stating medications, are used to lower cholesterol levels. This drug has not effect on the blood pressure and is never used to treat cardiogenic shock.

Overview

Norepinephrine is a medication used to stabilize a client in cardiogenic shock. It stimulates the heart during cardiac arrest.

Explanation

Learning Outcomes

Norepinephrine is an adrenergic agonist used to vasoconstrict and increase the blood pressure in hypotension and shock. During cardiogenic shock, the heart suddenly can not pump adequate blood to perfuse the body. This can occur due to a severe myocardial infarction. If the person goes into cardiac arrest, norepinephrine is used to stimulate the heart to return adequate perfusion to the heart and body.

Test Taking Tip

Never leave a question unanswered. Even if answering is no more than an educated guess on your part, go ahead and mark an answer. You might be right, but if you leave it blank, you will certainly be wrong and lose precious points.

Video Rationale