Regarding the use of nitrate products for coronary artery disease, the nurse should instruct a patient about the benefits of taking nitrates using which of the following statements? (Select all that apply.)
a. Oxygen demands are reduced in the heart.
b. Small blood vessels are increased in the heart.
c. The inner heart has less oxygen supply.
d. Oral nitrates have a slow onset of action.
e. Oral nitrates are changed in the liver to inactive products.
ANS: A, B, E
Nitrates decrease myocardial oxygen use and increase small blood vessels in the heart (collaterals) so that there is better oxygen supply to the inner layer of heart muscle. These products work rapidly orally but change in the liver to inactive products.
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