A nurse administers desmopressin to a client who has a diagnosis of diabetes insipidus. The nurse recognizes that which of the following laboratory findings indicate a therapeutic effect of the medication?
Blood glucose 80 mg/dL
Serum sodium 146 mEq/L
Blood urea nitrogen (BUN) 15 mg/dL
Urine specific gravity 1.015
The Correct Answer is D
A. Blood glucose levels are not directly affected by desmopressin, as it is used to treat diabetes insipidus, which is related to antidiuretic hormone (ADH) deficiency, not glucose metabolism.
B. A serum sodium level of 146 mEq/L is slightly elevated and may indicate dehydration, which is common in diabetes insipidus if not well controlled. Desmopressin should help lower the sodium level by reducing the excessive urine output.
C. Blood urea nitrogen (BUN) is typically used to assess kidney function and hydration status, but it is not a primary indicator of the effectiveness of desmopressin in treating diabetes insipidus.
D. A urine specific gravity of 1.015 is within the normal range and indicates more concentrated urine, which is a therapeutic effect of desmopressin. The medication helps the kidneys retain water, leading to more concentrated urine, and improving symptoms of diabetes insipidus.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Cerebral edema is the most dangerous complication associated with the administration of hypotonic fluids in patients with diabetic ketoacidosis (DKA). This occurs because hypotonic fluids cause rapid shifts in fluid and electrolytes, which can lead to swelling of the brain, especially in children. The risk is heightened if fluids are replaced too quickly.
B. Polyuria is a common symptom of diabetic ketoacidosis due to high blood glucose levels and osmotic diuresis, but it is not caused by hypotonic fluid administration.
C. Hypokalemia is a potential risk in DKA but typically arises from the shift of potassium from the extracellular to intracellular space during treatment, especially with insulin administration, not from the use of hypotonic fluids.
D. Metabolic acidosis is a hallmark of diabetic ketoacidosis itself and is caused by the accumulation of ketones. It is not caused by hypotonic fluid replacement.
Correct Answer is C
Explanation
A. Visual deterioration is not typically associated with nasal drainage following a hypophysectomy unless the optic nerves or structures are affected during surgery.
B. Diabetes is not related to the glucose content in the nasal drainage; it's unrelated to this situation.
C. The presence of glucose in the drainage indicates a possible cerebrospinal fluid (CSF) leak, as CSF contains glucose. A CSF leak increases the risk of meningitis due to the direct connection to the central nervous system.
D. Hypoglycemia is not associated with the glucose content of drainage fluid. This is more relevant to blood glucose levels.
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