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Multiple Choice
Hypersecretion of antidiuretic hormone (ADH) can occur in all of the following situations EXCEPT __________.
A
ectopic ADH secretion by pulmonary cancer
B
after general anesthesia
C
after neurosurgery
D
damage to the pineal gland
Verified step by step guidance
1
Understand the role of antidiuretic hormone (ADH) in the body. ADH is responsible for regulating water balance by increasing water reabsorption in the kidneys, thus reducing urine output.
Identify situations where hypersecretion of ADH might occur. Hypersecretion means excessive production of ADH, leading to increased water retention and potentially causing conditions like hyponatremia.
Consider the physiological effects of ectopic ADH secretion by pulmonary cancer. Ectopic secretion refers to hormone production by tissues that do not normally produce it, such as certain cancers, which can lead to increased ADH levels.
Evaluate the impact of general anesthesia and neurosurgery on ADH secretion. Both can affect the hypothalamus or pituitary gland, potentially leading to increased ADH production due to stress or direct manipulation.
Analyze why damage to the pineal gland would not cause hypersecretion of ADH. The pineal gland primarily regulates melatonin and circadian rhythms, not ADH production, so its damage would not directly affect ADH levels.