Correct Answer: B

Rationale: The priority nursing intervention for a child hospitalized for acute lymphoblastic leukemia (ALL) is preventing infection. Children with ALL have compromised immune systems, making them highly vulnerable to infections. Preventing infections through strict aseptic techniques, isolation precautions, and proper hygiene is crucial to safeguard the child's health. Administering antibiotics (choice A) may be necessary if an infection occurs, but the primary focus should be on infection prevention. While providing nutritional support (choice C) is important, preventing infection takes precedence due to its direct impact on the child's survival. Managing pain (choice D) is essential for the child's comfort but is not the priority over preventing life-threatening infections in this scenario.

Correct Answer: A

Rationale: The priority nursing intervention for a child with leukemia receiving chemotherapy is monitoring for signs of infection. Chemotherapy can suppress the immune system, putting the child at a higher risk of developing infections. Early detection of signs of infection is crucial to prevent serious complications and initiate timely treatment. Providing nutritional support is important for overall health but is not the priority when the child is at risk of infection. Monitoring for signs of bleeding is essential, but infection surveillance takes precedence due to the immediate threat it poses to the child's health. Monitoring for signs of pain is important for comfort but is not the priority over infection prevention and management.

Correct Answer: B

Rationale: The correct answer is B: 'Warmth at skin disruption site.' Cellulitis is characterized by localized warmth at the site of skin disruption, which indicates an infection. Choice A, 'Red, raised hair follicles,' is more typical of folliculitis. Choice C, 'Papules progressing to vesicles,' is suggestive of conditions like herpes simplex virus infections. Choice D, 'Honey-colored exudate,' is associated with impetigo, not cellulitis. When assessing cellulitis, nurses should primarily look for warmth, erythema, edema, and tenderness at the affected site.

Correct Answer: D

Rationale: A respiratory rate of 50 breaths per minute in a 5-month-old infant is considered high and may indicate respiratory distress. Infants normally have a higher respiratory rate than older children and adults, but a rate of 50 breaths per minute is above the expected range. This finding warrants immediate attention as it may be indicative of an underlying respiratory issue or distress. Choice A (Temperature of 99.5°F) is within the normal range for body temperature and does not necessarily indicate a critical issue. Choice B (Blood pressure of 75/48 mm Hg) is not typically assessed in isolation for a 5-month-old infant during a routine examination, and the values provided are not indicative of a critical condition. Choice C (Heart rate of 100 beats per minute) is within the normal range for heart rate in infants and may not be a cause for immediate concern during a routine examination.

Correct Answer: A

Rationale: The correct answer is A: Sterility. Mumps can lead to serious complications such as sterility, especially in adolescent males. Vaccination is essential to prevent this potential outcome. Hypopituitarism (Choice B) is not a typical complication of mumps. Choices C and D, decrease in libido and decrease in androgens, are not directly associated with mumps complications, particularly in the context of adolescents.