A nurse is preparing to administer diphenhydramine 50 mg PO every 6 hours to a client who has acute dystonia.

Available are diphenhydramine 25 mg tablets. How many tablets should the nurse administer per dose?

(Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

The correct answer is D. Urine output 75 mL in 1 hr.

Adequate urine output (at least 30 mL/hr) indicates effective hydration, showing that the kidneys are functioning properly and fluid balance is improving. A urine output of 75 mL in 1 hour suggests sufficient fluid replacement.

Here’s why the other options are incorrect:

• A. Urine specific gravity 1.005 to 1.030 – This range covers both normal and abnormal values. In dehydration, urine specific gravity is usually high (>1.030) due to concentrated urine. Effective treatment should lead to lower urine specific gravity, but the full range does not confirm improvement.

• B. Decreased pulse pressure – Pulse pressure is the difference between systolic and diastolic blood pressure. Dehydration typically causes a narrowed pulse pressure, so improvement should lead to a normal or increased pulse pressure rather than a decrease.

• C. Lightheadedness – Dizziness and lightheadedness are signs of dehydration-related hypotension. Effective hydration should resolve these symptoms, not maintain them.

Choice A reason: CAPD can be suitable for clients with a history of abdominal surgery, but it is not specifically the

treatment of choice due to this reason alone.

Choice B reason: CAPD does not require a rigid schedule of exchange times. It is ?exible and can be adjusted to fit the client's lifestyle.

Choice C reason: CAPD allows for more dietary and fluid freedom compared to hemodialysis because it is a continuous process that removes waste products and excess fluid more gradually.

Choice D reason: CAPD does not filter the client's blood through an artificial device called a dialyzer; that is a description of hemodialysis. CAPD uses the client's peritoneum as the filter to remove waste products and excess fluid.