Correct Answer: D

Rationale: Severe joint pain is a classic symptom of rheumatic fever, resulting from inflammation of the joints. Rheumatic fever primarily affects the joints, heart, skin, and the central nervous system. Jaundice (Choice A) is not typically associated with rheumatic fever. Peeling skin on the hands and feet (Choice B) is more characteristic of conditions like Kawasaki disease. While high fever (Choice C) can be present in rheumatic fever, it is not as specific or characteristic as severe joint pain.

Correct Answer: D

Rationale: Full-thickness burns, also known as third-degree burns, are characterized by a leathery, dry appearance with numbness due to nerve damage. This type of burn extends through all layers of the skin, affecting nerve endings. Choice A describes characteristics of superficial partial-thickness burns, which involve the epidermis and part of the dermis. Choice B describes characteristics of superficial burns, or first-degree burns, which only affect the epidermis. Choice C describes characteristics of superficial to mid-dermal burns, also known as second-degree burns, which involve the epidermis and part of the dermis but do not extend through all skin layers. Therefore, the correct answer is D.

Correct Answer: C

Rationale: Placing the child in a semi-Fowler's position after eating is beneficial for reducing symptoms of gastroesophageal reflux. This position helps prevent gastric contents from flowing back into the esophagus. The supine position (choice A) may worsen reflux symptoms by allowing gravity to assist in reflux, leading to discomfort and regurgitation. Prone position (choice B) is not recommended after eating as it may cause discomfort and increase the risk of aspiration due to pressure on the stomach. Trendelenburg position (choice D), with the head lower than the rest of the body, is not indicated for managing GERD after eating and may not provide the desired benefits in this context.

Correct Answer: D

Rationale: Hypospadias is a congenital condition where the urethral opening is located along the ventral surface of the penis, not the dorsal surface (Choice C) or absent (Choice A). This leads to the characteristic appearance of a ventrally displaced urethral meatus. The penis may appear normal in size but with the urethral opening positioned abnormally (Choice D), rather than being shorter than usual (Choice B). Therefore, the correct expectation for a newborn with hypospadias is that the urethral opening is along the ventral surface of the penis, making Choice D the correct answer.

Correct Answer: B

Rationale: Setting the water heater at 130 degrees can lead to scald burns. The recommended temperature setting for water heaters is no higher than 120 degrees to prevent burns. Choice A is correct as it shows awareness of the risks of fireworks. Choice C is correct as flame-retardant sleepwear can help prevent burns. Choice D is correct as inward-facing pot handles prevent accidental spills and burns. Option B is incorrect due to the unsafe water heater temperature setting.