Correct Answer: A

Rationale: The correct answer is giving a pacifier to the newborn. Sucking is a natural reflex and a source of comfort for newborns, especially postoperatively. A pacifier can help meet their developmental needs by providing soothing comfort. Choices B, C, and D do not directly address the major developmental need related to the newborn's comfort and reflexes postoperatively. Putting a mobile over the crib, providing a cuddly toy, or warming formula, although potentially beneficial in other contexts, do not specifically target the developmental need of sucking for comfort. Offering a pacifier is a safe and effective way to address this developmental need in newborns.

Correct Answer: C

Rationale: The correct answer is C: Osgood-Schlatter disease. This condition is a common overuse injury that affects the knee. Osgood-Schlatter disease typically occurs in children and adolescents who are involved in activities that require frequent running, jumping, and kicking. It is characterized by pain, swelling, and tenderness at the tibial tuberosity, where the patellar tendon inserts into the tibia. Choice A, Dislocated radial head, is not an overuse disorder but rather a form of elbow injury where the head of the radius bone is displaced from its normal position. Choice B, Transient synovitis of the hip, is a self-limiting condition that causes hip pain and limping in children. It is not typically considered an overuse disorder. Choice D, Scoliosis, is a condition characterized by an abnormal lateral curvature of the spine. While it may be related to certain activities or postures, it is not primarily classified as an overuse disorder.

Correct Answer: B

Rationale: Burns on the lips and singed nasal hairs are indicative of an inhalation injury. This suggests that the child has likely inhaled hot gases or smoke, leading to damage in the respiratory tract. Choice A, chemical burn, is incorrect because the symptoms described are more aligned with inhalation rather than direct contact with chemicals. Choice C, electrical burn, is incorrect as there are no mentions of contact with an electrical source. Choice D, hot-water scald, is also incorrect as the presentation of burns on the lips and singed nasal hairs is not characteristic of scald injuries.

Correct Answer: B

Rationale: Monitoring the intravenous drop rate is the most crucial intervention when administering IV fluids to a dehydrated infant. This ensures that the correct amount of fluids is being delivered to the infant at the appropriate rate. While continuing the prescribed flow rate (Choice A) may be important, it does not allow for real-time adjustments that may be necessary during the infusion. Calculating the total necessary intake (Choice C) should have been determined before initiating IV therapy. Maintaining the fluid at body temperature (Choice D) is important for patient comfort but is not as critical as ensuring the proper administration of fluids.

Correct Answer: B

Rationale: High fever is a key clinical manifestation of bacterial meningitis due to the inflammatory response in the meninges. Photophobia, choice A, is also commonly observed due to meningeal irritation, but it is not as specific as high fever. Rash, choice C, is more indicative of conditions like meningococcal meningitis rather than bacterial meningitis. Nasal congestion, choice D, is not typically associated with bacterial meningitis. Therefore, the correct answer is B.