Coronary spasm may result from which of the following?

Question

Quizplus · Accepted Answer

Coronary spasm can occur due to endothelial injury, which can lead to decreased production of vasodilator substances and increased production of vasoconstrictor substances, resulting in spasm of the coronary arteries. Increased nitric oxide release would have the opposite effect, causing vasodilation. Decreased serotonin levels may lead to a decrease in platelet aggregation but would not directly affect coronary spasm. Decreased inflammatory responses are also not directly related to coronary spasm.

Coronary Spasm May Result from Which of the Following