Correct Answer: A

Rationale: The correct answer is to monitor liver function tests regularly. Methotrexate, commonly used in JIA, can be hepatotoxic. Regular monitoring of liver function tests is crucial to detect any signs of liver damage early. While encouraging regular exercise (choice B) is generally beneficial for overall health, it is not directly related to methotrexate therapy. Providing high-calorie snacks (choice C) is not a necessary consideration in this context and can be misleading. Encouraging frequent handwashing (choice D) is important for infection control but is not specifically related to the medication methotrexate.

Correct Answer: A

Rationale: The correct answer is to notify the practitioner. The passage of a normal brown stool in a child with intussusception could indicate spontaneous reduction of the intussusception. It is crucial to inform the practitioner immediately so that they can reassess the situation and determine the next steps, which may include adjusting the planned intervention. Measuring abdominal girth (choice B) may be important in assessing for abdominal distension but is not the most immediate action required in this scenario. Auscultating for bowel sounds (choice C) is a routine nursing assessment but does not take precedence over notifying the practitioner in this critical situation. Taking vital signs, including blood pressure (choice D), is also important but notifying the practitioner is more urgent to address the unexpected change in the patient's condition.

Correct Answer: D

Rationale: Performing a comprehensive health assessment is crucial for a child living with a foster family as they may have moved between different homes, leading to incomplete medical records. This assessment helps identify any existing health issues, ensure appropriate care, and address any unmet health needs. While addressing issues like bullying or parental expectations is important, the immediate priority should be ensuring the child's overall health and well-being. Establishing the actual caretaker is also important but may not be as urgent as addressing potential health concerns.

Correct Answer: C

Rationale: The correct answer is C. Longer periods of sleep than usual can be a sign of illness in infants. When an infant sleeps more than usual, it can indicate that the baby is conserving energy due to an underlying condition. Grunting respirations (choice A) can be a sign of respiratory distress, not just an indication of illness. Excessive perspiration (choice B) can occur due to various reasons and is not a specific major indication of illness. Crying immediately after feedings (choice D) is a common behavior in infants and not necessarily a major indication of illness.

Correct Answer: A

Rationale: The priority nursing intervention for a child with acute lymphoblastic leukemia (ALL) receiving chemotherapy is to prevent infection. Chemotherapy compromises the child's immune system, increasing susceptibility to infections. Preventing infection is crucial to avoid potential complications such as sepsis, which can be life-threatening. Administering chemotherapy is essential for treating ALL but preventing infection takes precedence due to the increased risk of infections associated with chemotherapy-induced immunosuppression. Providing nutritional support is important for overall health but preventing infections is more critical in this context. Monitoring fluid intake is significant, but the priority is to prevent infections that can have severe consequences in an immunocompromised child.