Correct Answer: A

Rationale: McBurney's point is located in the right lower quadrant of the abdomen, specifically between the umbilicus and the anterior iliac crest. This point is significant in diagnosing appendicitis, as tenderness at McBurney's point is a classic sign of appendicitis and indicates inflammation near the appendix.

Correct Answer: D

Rationale: The correct answer is D. Tetracycline antibiotics can bind to calcium in dairy products, decreasing the absorption of the antibiotic. This may result in reduced effectiveness of the medication. Additionally, tetracycline antibiotics can cause permanent staining of teeth, especially in children below 8 years of age and in pregnant women. Therefore, it is crucial for the patient to be aware of this potential side effect and to discuss any concerns with their healthcare provider.

Correct Answer: C

Rationale: In acute poststreptococcal glomerulonephritis (APSGN), hypertension is a common finding due to fluid retention and decreased kidney function. This condition often presents with hypertension as a result of sodium and water retention, as well as reduced glomerular filtration rate.

Correct Answer: C

Rationale: When a toddler has partial thickness burns, the nurse should cleanse the affected area with mild soap and water. This action helps remove any loose tissue that could lead to infection and prepares the area for appropriate wound care.

Correct Answer: D

Rationale: When a child with a history of seizures presents in status epilepticus, the priority nursing action is to maintain a patent airway. This is crucial to ensure proper oxygenation and ventilation. Establishing an intravenous line and performing other assessments are important but maintaining a patent airway takes precedence to prevent hypoxia and ensure the child's safety.