Sometimes while traveling, people are infected with a protist parasite, giardia. one of the side effects of giardia infection is diarrhea. when someone has diarrhea, they lose excessive water and salt from the body. the result is loss of na+, dehydration that leads to decreased extracellular volume and plasma volume, and decreased arterial blood pressure. given this would the vasopressin secretion of a person infected with giardia:
increase
decrease
stay the same

Increase

Explanation:

Vasopressin levels in Giardiasis will increase to reduce water loss and to prevent the dehydration. The hormone Vasopressin targets the collecting ducts of nephrons and stimulates the water reabsorption. The overall result is the formation of concentrated urine to prevent any further water loss from the body. Water retention in the body also helps to restore the blood volume and blood pressure in a person affected with Giardia.

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