A nurse is providing education regarding the adrenal cortex production of mineralocorticoids. The nurse should include that mineralocorticoids influence which of the following?
Major effects on the metabolism of almost all organs of the body
Fluid and electrolyte balance
Regulate carbohydrate and protein metabolism
The release of the ACTH from the anterior lobe of the pituitary gland
The Correct Answer is B
A. While hormones from the adrenal cortex do influence various metabolic processes, mineralocorticoids primarily focus on fluid and electrolyte balance rather than having major effects on all organs' metabolism.
B. Mineralocorticoids, such as aldosterone, play a crucial role in regulating fluid and electrolyte balance by promoting sodium retention and potassium excretion in the kidneys.
C. Regulation of carbohydrate and protein metabolism is mainly the function of glucocorticoids, not mineralocorticoids.
D. The release of ACTH is regulated by corticotropin-releasing hormone (CRH) from the hypothalamus, not directly influenced by mineralocorticoids.
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Correct Answer is B
Explanation
A. Insufficient insulin production is related to diabetes mellitus, not Cushing's syndrome.
B. Long-term use of glucocorticoids is a well-known exogenous cause of Cushing's syndrome, as it leads to excess cortisol in the body.
C. Adrenal insufficiency refers to a deficiency of adrenal hormones and would not cause Cushing's syndrome, which is characterized by excess hormones.
D. Overproduction of growth hormones is associated with acromegaly or gigantism, not Cushing's syndrome, which primarily involves excess cortisol.
Correct Answer is D
Explanation
A. Monitoring glucose levels may be necessary, as pheochromocytoma can cause hyperglycemia, but it is not the immediate priority.
B. A CT scan may be part of the diagnostic process to locate the adrenal tumor, but the priority is to control blood pressure first due to the risk of severe hypertensive crisis.
C. Serum calcium levels are not directly related to pheochromocytoma and are not a priority action.
D. Monitoring blood pressure is critical, as pheochromocytoma causes episodes of severe hypertension, which can lead to life-threatening complications.