Diabetes insipidus (DI) is caused by:

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Prepare for the Mark Klimek Electrolytes and Endocrine Test. Utilize flashcards, multiple choice questions, and detailed explanations for each query to enhance your understanding. Ace your exam!

Multiple Choice

Diabetes insipidus (DI) is caused by:

Explanation:
Diabetes insipidus is caused by insufficient action of antidiuretic hormone. ADH’s job is to tell the kidneys’ collecting ducts to reabsorb water, concentrating the urine. When ADH is deficient (central DI) or the kidneys don’t respond to it (nephrogenic DI), water reabsorption drops dramatically, leading to huge volumes of very dilute urine and excessive thirst. The other options point to problems with insulin, cortisol, or excess ADH, which affect different endocrine systems and don’t produce the hallmark DI pattern of dilute, high-volume urination.

Diabetes insipidus is caused by insufficient action of antidiuretic hormone. ADH’s job is to tell the kidneys’ collecting ducts to reabsorb water, concentrating the urine. When ADH is deficient (central DI) or the kidneys don’t respond to it (nephrogenic DI), water reabsorption drops dramatically, leading to huge volumes of very dilute urine and excessive thirst. The other options point to problems with insulin, cortisol, or excess ADH, which affect different endocrine systems and don’t produce the hallmark DI pattern of dilute, high-volume urination.

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