Question

Deficiency of vasopressin primarily results in:

• A. Increased volume of urine
• B. Decreased volume of urine
• C. Excessive secretion of urochrome
• D. Change in pH from acidic to alkaline range

Answer 1

The correct option is A Increased volume of urine

Vasopressin acts mainly on the kidney and stimulates reabsorption of water and electrolytes by the distal tubules and thereby reduces loss of water through urine (diuresis).
Deficiency of vasopressin causes diabetes insipidus which increased volume of urine. It is caused due to decreased reabsorption of water from collecting tubules.