Correct Answer: A

Rationale: In nephrotic syndrome, there is excessive loss of protein in the urine, leading to hypoalbuminemia. This results in decreased oncotic pressure, causing fluid to shift into the interstitial spaces, leading to edema. Hyperkalemia, polyuria, and hyperglycemia are not typically associated with nephrotic syndrome.

Correct Answer: B

Rationale: When fluconazole is taken with statins like simvastatin, it can increase the levels of the statin in the blood, potentially leading to adverse effects such as muscle pain and weakness. Therefore, the nurse should be concerned if the patient is taking simvastatin along with fluconazole.

Correct Answer: B

Rationale: Taking antibiotics is a contraindication to receiving the MMR vaccine because antibiotics can potentially interfere with the effectiveness of the vaccine. It is essential to avoid administering the MMR vaccine while the child is on antibiotics to ensure the vaccine provides the intended protection.

Correct Answer: B

Rationale: Administering antibiotics for 7 days is essential postoperatively to prevent infections and complications in a child who underwent perforated appendicitis repair. This helps in reducing the risk of secondary infections and promoting healing. Clear liquid diets, warm compresses, and prolonged fasting are not the primary interventions indicated in this scenario.

Correct Answer: A

Rationale: To confirm peripheral edema in a child, the nurse should palpate the dorsum of the child's feet by pressing a fingertip against a bony prominence for 5 seconds. This assessment helps detect the presence of pitting edema, which is characterized by an indentation that remains after the pressure is released.