Medical, OB/GYNCâu 86 / 100
Nitroglycerin assists a cardiac patient primarily by:
a.Raising the heart rate
b.Thickening the blood
c.Constricting blood vessels
d.Dilating blood vessels to reduce the heart's workload
Giải thích
Nitroglycerin dilates blood vessels, reducing the workload on the heart and improving blood flow to the heart muscle. Because it lowers blood pressure, adequate pressure must be confirmed before assisting.
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