Correct Answer: A

Rationale: The priority intervention for a patient with osteomyelitis related to a heel ulcer, with a wound that saturates the dressing every hour, is to place the patient under contact precautions. Contact precautions are essential when managing infectious wounds to prevent the spread of infection to healthcare workers, other patients, and visitors. Strict aseptic technique (Choice B) should always be used with wound care but is secondary to implementing contact precautions in this scenario. Placing another dressing (Choice C) or elevating the patient's leg (Choice D) may be necessary but do not address the immediate need for infection control measures.

Correct Answer: A

Rationale: The primary nursing concern when caring for patients with splints, casts, or traction is to assess for and prevent neurovascular complications or dysfunction. This is crucial to ensure adequate circulation and nerve function, preventing long-term complications such as ischemia or nerve damage. While adequate nutrition and patient education are important aspects of care, they are not the primary concern in this scenario. Acute pain management is important but is secondary to preventing neurovascular complications in patients treated with splints, casts, or traction.

Correct Answer: A

Rationale: The nurse should emphasize the importance of monitoring liver function tests in clients taking INH due to the risk of hepatocellular injury and hepatitis associated with this medication. Regular assessment of liver enzymes can help detect liver damage early. Monitoring kidney function, blood sugar levels, or cardiac enzymes is not specifically required for clients taking INH and tuberculosis treatment.

Correct Answer: D

Rationale: Intussusception is a condition where a part of the bowel slides into the next section, causing an obstruction. The classic presentation includes severe abdominal pain that is crampy, intermittent, and may cause the child to draw knees to the chest. While vomiting can occur, it is not typically projectile in nature. A key hallmark of intussusception is the passage of bright red blood and mucus in the stools, often described as currant jelly-like. Watery diarrhea and ribbon-like stools are not typical signs of intussusception and should not be expected in a child with this condition.

Correct Answer: D

Rationale: Acute glomerulonephritis (AGN) is generally considered an immune-complex disease in response to a previous B-hemolytic streptococcal infection, typically occurring 4 to 6 weeks prior. It is not an infectious disease but a noninfectious renal condition. Therefore, the parent's belief that the child 'caught' the disease is inaccurate. Choice A is incorrect because AGN is not a direct streptococcal infection involving the kidney tubules but an immune response to a prior streptococcal infection. Choice B is incorrect as AGN is not easily transmissible in schools and camps. Choice C is incorrect as AGN is not usually associated with chronic respiratory infections but with a previous streptococcal infection.