What is the most frequent cause of hypovolemic shock in children?
a. Sepsis
b. Blood loss
c. Anaphylaxis
d. Heart failure
ANS: B
Blood loss is the most frequent cause of hypovolemic shock in children. Sepsis causes septic shock, which is overwhelming sepsis and circulating bacterial toxins. Anaphylactic shock results from extreme allergy or hypersensitivity to a foreign substance. Heart failure contributes to hypervolemia, not hypovolemia.
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