Author Question: Heparin is ordered for a patient with a nonST-segment-elevation myocardial infarction (NSTEMI). What ... (Read 90 times)

abern · **on:** Jun 25, 2018

Heparin is ordered for a patient with a nonST-segment-elevation myocardial infarction (NSTEMI). What is the purpose of the heparin?

a. Heparin enhances platelet aggregation.
b. Heparin decreases coronary artery plaque size.
c. Heparin prevents the development of new clots in the coronary arteries.
d. Heparin dissolves clots that are blocking blood flow in the coronary arteries.

Question 2

Nadolol (Corgard) is prescribed for a patient with chronic stable angina and left ventricular dysfunction. To determine whether the drug is effective, the nurse will monitor for

a. decreased blood pressure and heart rate.
b. fewer complaints of having cold hands and feet.
c. improvement in the strength of the distal pulses.
d. the ability to do daily activities without chest pain.

chjcharjto14 · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

ANS: C
Heparin helps prevent the conversion of fibrinogen to fibrin and decreases coronary artery thrombosis. It does not change coronary artery plaque, dissolve already formed clots, or enhance platelet aggregation.

Answer to Question 2

ANS: D
Because the medication is ordered to improve the patient's angina, effectiveness is indicated if the patient is able to accomplish daily activities without chest pain. Blood pressure and heart rate may decrease, but these data do not indicate that the goal of decreased angina has been met. The noncardioselective -adrenergic blockers can cause peripheral vasoconstriction, so the nurse would not expect an improvement in distal pulse quality or skin temperature.