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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View Related questions
Correct Answer is A
Explanation
A. Encouraging fluid intake at and between meals helps to dilute urine and can reduce the risk of urinary tract infections (UTIs) by promoting regular urination.
B. Cleansing the perineum should be done from front to back to prevent the introduction of bacteria from the rectal area to the urethra, so this option is incorrect.
C. Offering the bedpan every 2 hours may not be sufficient for individuals at risk for UTIs, as more frequent voiding can help prevent infection.
D. An indwelling urinary catheter increases the risk of urinary tract infections and should be avoided unless absolutely necessary; intermittent catheterization is generally preferred for those with spinal cord injuries to minimize this risk.
Correct Answer is D
Explanation
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.