Which hormone is responsible for regulating the body's water balance and blood pressure through its effects on the kidneys?

A Aldosterone
B Antidiuretic hormone (ADH) ✓
C Insulin
D Glucagon

Explanation

ADH, also known as vasopressin, helps regulate water balance by promoting water reabsorption in the kidneys, which in turn helps maintain blood pressure.

Mnemonic

ADH = Aquatic Diuretic Helper

Source

Berne and Levy Physiology
Hormones and Endocrine Markers Endocrinology Posterior Pituitary Hormones Medium MEDICAL Confidence: high