What is the most common type of reaction in blood donors?
A)Varicose
B)Variolar
C)Vasospasm
D)Vasovagal

Question

Quizplus · Accepted Answer

Vasovagal reaction is the most common type of reaction in blood donors, accounting for about 70% of all adverse reactions. It is a reflex reaction caused by the stimulation of the vagus nerve, leading to a decrease in heart rate and blood pressure, which can result in fainting or dizziness. Varicose, variolar, and vasospasm are less common reactions.

What Is the Most Common Type of Reaction in Blood