Which of the following substances,in excess,causes a flushing reaction?
A)alcohol dehydrogenase
B)acetaldehyde
C)acetaldehyde dehydrogenase
D)ethyl alcohol

Question

Quizplus · Accepted Answer

Excess acetaldehyde, a product of alcohol metabolism, can cause a flushing reaction as it expands blood vessels and causes a surge of histamine release. This reaction is commonly observed in individuals who have low activity of the enzyme acetaldehyde dehydrogenase, which breaks down acetaldehyde into a non-toxic substance.

Which of the Following Substances,in Excess,causes a Flushing Reaction