A 24-year-old man has a disorder associated with a deficiency of antidiuretic hormone (ADH) or inability of the kidneys to respond to ADH. This disorder is:
A) diabetes insipidus.
B) diabetes mellitus.
C) hypopituitarism.
D) hyposecretion.

Question

Quizplus · Accepted Answer

ADH, also known as vasopressin, regulates water balance in the body by promoting water reabsorption in the kidneys. Without adequate ADH, the kidneys are unable to reabsorb enough water from the urine, leading to excessive urine output and dehydration, which is characteristic of diabetes insipidus. Diabetes mellitus is a different disorder involving high blood sugar levels. Hypopituitarism refers to a deficiency of pituitary hormones, which can include ADH but would not necessarily present with the symptoms described. Hyposecretion is a term that refers generally to any deficiency in hormone secretion, but is not a specific disorder.

A 24-Year-Old Man Has a Disorder Associated with a Deficiency