Correct Answer: A

Rationale: When a client is prescribed furosemide, monitoring potassium levels is crucial due to the drug's potential to cause hypokalemia. Furosemide is a loop diuretic that promotes potassium excretion in the urine, leading to a risk of low potassium levels. Monitoring potassium levels helps in detecting and preventing hypokalemia, which can result in adverse effects like cardiac dysrhythmias. Sodium, calcium, and hemoglobin levels are usually not directly affected by furosemide, making them less pertinent for monitoring in this specific scenario.

Correct Answer: C

Rationale: Enuresis is a common symptom of urinary tract infections in school-age children. It is often a presenting symptom due to irritation of the bladder. Periorbital edema (Choice A) is more indicative of conditions like nephrotic syndrome or renal disorders. Decreased frequency of urination (Choice B) is not typically associated with urinary tract infections. Diarrhea (Choice D) is not a common symptom of urinary tract infections but may occur due to other reasons like gastrointestinal infections.

Correct Answer: C

Rationale: The correct action for the nurse to take is to check the client's creatinine level before administering vancomycin. Vancomycin is known to be nephrotoxic, so assessing the client's renal function before administering the medication is crucial to prevent further kidney damage. Administering the medication over 15 minutes (Choice A) is not the priority in this scenario as renal function assessment takes precedence. Monitoring urine output (Choice B) is important for assessing renal function but checking creatinine level directly provides more accurate information. Assessing for allergies to antibiotics (Choice D) is also important but not as essential as checking the creatinine level due to the nephrotoxic nature of vancomycin.

Correct Answer: C

Rationale: The correct action the nurse should take when administering a cleansing enema is to hold the container of the enema solution 61 cm (24 in) above the client. This height facilitates the proper flow of the solution into the client's rectum. Positioning the client on their left side helps facilitate the administration process, but it is not the specific action related to the enema solution. Inserting the enema tubing 8 cm (3.1 in) into the rectum is incorrect as it may not deliver the solution effectively. Advancing the enema tubing 15 cm (6 in) into the client's rectum is excessive and could cause trauma.

Correct Answer: C

Rationale: The correct answer is C. Clients taking prednisone should avoid crowded places to reduce the risk of infection due to immunosuppression. Choice A is incorrect because prednisone should be taken with food to reduce stomach upset. Choice B is incorrect as prednisone is usually prescribed for a specific duration and not for life. Choice D is incorrect because prednisone should be taken as prescribed by the healthcare provider, which may not always align with symptom resolution.