Which of the following is a potential cause of central diabetes insipidus (CDI)?
Excessive fluid intake.
Kidney dysfunction.
Trauma or injury to the hypothalamus or pituitary gland.
Hypersecretion of aldosterone.
The Correct Answer is C
Central diabetes insipidus (CDI) can be caused by trauma or injury to the hypothalamus or pituitary gland, which disrupts the production or release of antidiuretic hormone (ADH). Other causes of CDI include tumors, infections, and certain medications.
Incorrect choices:
a. This choice is incorrect. Excessive fluid intake can lead to increased urine output, but it is not a cause of CDI.
b. This choice is incorrect. Kidney dysfunction is not a common cause of central diabetes insipidus.
d. This choice is incorrect. Hypersecretion of aldosterone would lead to sodium retention and increased fluid volume, which is not characteristic of central diabetes insipidus.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Polyuria, which refers to excessive urine output, is a hallmark clinical manifestation of diabetes insipidus (DI). In DI, the kidneys are unable to concentrate urine properly, leading to the excretion of large volumes of dilute urine.
Incorrect choices:
a. This choice is incorrect. Hypertension is not a typical clinical manifestation of diabetes insipidus.
b. This choice is incorrect. Bradycardia is not a typical clinical manifestation of diabetes insipidus.
d. This choice is incorrect. Hypoglycemia is not a typical clinical manifestation of diabetes insipidus.
Correct Answer is B
Explanation
Hypernatremia, or elevated sodium levels, is a common laboratory finding in clients with diabetes insipidus due to the excessive loss of water in urine.
Incorrect choices:
a. This choice is incorrect. Elevated urine specific gravity is not typically seen in diabetes insipidus; instead, urine specific gravity is often diluted.
c. This choice is incorrect. Low serum osmolality is not characteristic of diabetes insipidus, which is associated with concentrated serum.
d. This choice is incorrect. Hypouricemia refers to low levels of uric acid and is not directly related to diabetes insipidus.
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