Which hormone is responsible for the regulation of water balance and blood pressure through its effects on the kidneys?

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

Explanation

ADH, also known as vasopressin, regulates water balance by stimulating water reabsorption in the collecting ducts of the kidneys, thereby controlling blood pressure.

Mnemonic

ADH = Aquatic Dynamics Helper

Source

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