A nurse is caring for a client with a urine specific gravity of less than 1.005, polyuria, and nocturia. The nurse recognizes that which of the following physiologic findings is the likely cause?
Increased insulin production
Increased adrenocorticotropic hormone (ACTH)
Low levels of T3, T4
Insufficient antidiuretic hormone (ADH)
The Correct Answer is D
A. Increased insulin production would not cause polyuria and low specific gravity urine; rather, hyperglycemia from lack of insulin can cause high specific gravity due to glucose in urine.
B. Increased ACTH affects cortisol production but is not directly related to urine concentration or polyuria.
C. Low T3 and T4 levels are associated with hypothyroidism, which typically does not cause polyuria or decreased specific gravity.
D. Insufficient ADH, as seen in diabetes insipidus, leads to the inability to concentrate urine, resulting in a low specific gravity, polyuria, and nocturia due to excessive water loss.
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Correct Answer is C
Explanation
A. A short-term, low-dose steroid use (one week) has minimal risk for adrenal suppression.
B. Three weeks of steroids increases risk, but daily use presents a higher risk.
C. Prolonged daily steroid use, especially in an older adult, poses the greatest risk for adrenal insufficiency due to suppression of the hypothalamic-pituitary-adrenal (HPA) axis.
D. Intermittent steroid use is less likely to cause adrenal insufficiency compared to daily long-term use.
Correct Answer is B
Explanation
A. Lowering the client's legs is not effective in managing autonomic dysreflexia and may not alleviate the cause of the high blood pressure.
B. Checking for a full bladder is the priority because bladder distension is a common trigger for autonomic dysreflexia in clients with spinal cord injuries, and relieving it can reduce the severe hypertensive response.
C. Antihypertensives may be used if non-pharmacological measures fail, but addressing the cause is the first action.
D. Pain medication is not indicated as the immediate intervention for autonomic dysreflexia, as the priority is identifying and removing the trigger.