PATHOLOGY MCQ
ENDOCRINE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The pituitary gland fails to secrete ADH
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The pituitary gland secretes excessive ADH
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Excessive amount of water is reabsorbed at the renal tubule and the collecting duct
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Too little or no water is reabsorbed at the renal tubule and the collecting duct
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Detailed explanation-1: -In most cases of diabetes insipidus, your hypothalamus isn’t making enough ADH, your pituitary gland isn’t releasing enough ADH or your kidneys aren’t properly using ADH. This causes frequent and excessive water loss through your urine.
Detailed explanation-2: -What causes diabetes insipidus. Diabetes insipidus is caused by problems with a hormone called vasopressin (AVP), also called antidiuretic hormone (ADH). AVP plays a key role in regulating the amount of fluid in the body. It’s produced by specialist nerve cells in a part of the brain known as the hypothalamus.
Detailed explanation-3: -In nephrogenic diabetes insipidus, the kidneys produce a large volume of dilute urine because the kidney tubules fail to respond to vasopressin (antidiuretic hormone) and are unable to reabsorb filtered water back into the body.