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.)

Choice A reason: A strong odor in the first-voided urine can be normal, especially if it's concentrated after a night's sleep.

Choice B reason: An output of 175 mL in 8 hours is concerning, as it indicates oliguria, which is a urine output of less than 400 mL in 24 hours, and can be a sign of worsening renal function.

Choice C reason: An output of 2,200 mL in 24 hours is within normal urine output ranges, which is typically 800 to 2,000 mL per day for an average adult.

Choice D reason: Urine becoming cloudy after sitting for a period is common due to precipitation of salts and proteins at lower temperatures.

Choice A reason: General anesthesia can cause urinary retention due to its effects on the nervous system, which may temporarily impair the normal re?exes that control urination. This is particularly relevant in the immediate postoperative period.

Choice B reason: While liver failure can have many systemic effects, it is not directly associated with an increased risk of urinary retention. Urinary retention is more commonly related to factors affecting the urinary tract or nervous system.

Choice C reason: A diet high in calcium oxalate can contribute to kidney stones, but it does not directly increase the risk of urinary retention. Urinary retention typically involves an obstruction or nerve dysfunction.

Choice D reason: Antibiotic treatment for a skin infection, even one caused by Staphylococcus aureus, would not typically result in urinary retention. Urinary retention is usually related to urinary tract obstructions, medications, or nerve issues.