Question

A person passes much urine and drinks much water but his blood glucose level remains normal. This condition may be the result of

• A. A reduction in insulin secretion from pancreas.
• B. A reduction in vasopressin secretion from posterior pituitary.
• C. A fall in the glucose concentration in urine.
• D. An increase in secretion of glucagon.

Answer 1

The correct option is B A reduction in vasopressin secretion from posterior pituitary.

When a person passes more urine and drinks more water and his blood glucose level is normal, he is suffering from diabetes insipidus (DI). DI is caused by reduction in vasopressin (ADH) hormone, which is secreted from posterior pituitary gland.

Therefore, the correct answer is option B.