Which type of diabetes insipidus is characterized by inadequate production or release of antidiuretic hormone (ADH) from the hypothalamus or pituitary gland?
Central diabetes insipidus.
Nephrogenic diabetes insipidus.
Neurogenic diabetes insipidus.
Secondary diabetes insipidus.
The Correct Answer is A
Central diabetes insipidus is characterized by inadequate production or release of ADH from the hypothalamus or pituitary gland.
Incorrect choices:
b. This choice is incorrect. Nephrogenic diabetes insipidus is characterized by a lack of response to ADH by the kidneys.
c. This choice is incorrect. Neurogenic diabetes insipidus is not a recognized classification of diabetes insipidus.
d. This choice is incorrect. Secondary diabetes insipidus refers to cases where another condition or factor, such as head trauma or tumor, affects ADH production or release.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Nephrogenic diabetes insipidus is characterized by a lack of response to ADH by the kidneys, resulting in decreased water reabsorption and increased urine output.
Incorrect choices:
a. This choice is incorrect. Central diabetes insipidus is characterized by inadequate production or release of ADH from the hypothalamus or pituitary gland.
c. This choice is incorrect. Gestational diabetes insipidus occurs during pregnancy and is rare.
d. This choice is incorrect. Type 1 diabetes insipidus is not a recognized classification of diabetes insipidus.
Correct Answer is B
Explanation
The posterior lobe of the pituitary gland, also known as the neurohypophysis, is responsible for producing and releasing antidiuretic hormone (ADH) in response to signals from the hypothalamus.
Incorrect choices:
a. This choice is incorrect. The hypothalamus produces ADH and releases it into the posterior pituitary for storage and release.
c. This choice is incorrect. The anterior lobe of the pituitary gland is responsible for producing and releasing other hormones, such as growth hormone and thyroid-stimulating hormone.
d. This choice is incorrect. The pineal gland is responsible for producing melatonin, a hormone that regulates sleep-wake cycles, and is not involved in ADH production.
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