Question 1
1 out of 1 points
An expected outcome for a patient who has just taken sublingual nitroglycerin should be
Selected Answer:
Correct Answer:
B.
increased heart rate and decreased blood pressure.
Response
...
Question 1
1 out of 1 points
An expected outcome for a patient who has just taken sublingual nitroglycerin should be
Selected Answer:
Correct Answer:
B.
increased heart rate and decreased blood pressure.
Response
Feedback:
Nitroglycerin relaxes vascular smooth muscle and dilates both arterial and
venous vessels. Dilation of veins is more predominant than dilation of arteries,
resulting in peripheral pooling of blood and decreased preload. Blood pressure
will usually decrease as a result of the venous dilation. Reflex tachycardia
usually follows the drop in blood pressure.
Question 2
1 out of 1 points
A nurse is caring for a patient who is diabetic and has been diagnosed with hypertension. An
angiotensinconverting enzyme inhibitor, captopril, has been prescribed for her. Which of the
following should the nurse assess before beginning drug therapy?
Selected Answer:
Correct Answer:
D.
Serum potassium levels
Response
Feedback:
Captopril inhibits the angiotensinconverting enzyme that is needed to change the
inactive angiotensin I to the active form, angiotensin II. This reduction of
angiotensin II decreases the secretion of aldosterone, preventing sodium and
water retention. This action decreases peripheral vascular resistance and lowers
blood pressure. Serum potassium may increase as a result of decreased
aldosterone levels. It would be helpful to have a baseline level at the beginning of
the drug therapy to monitor the possible effect of hyperkalemia. There is no need
to monitor calcium and magnesium levels. While it is important to always know
a diabetic's blood glucose level, captopril does not alter the level during therapy
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