Correct Answer: A

Rationale: Nausea and vomiting are more common in children following head trauma due to their higher risk of increased intracranial pressure. Children have less space for swelling within the skull compared to adults, making them more prone to experiencing symptoms like nausea and vomiting. Altered mental status and changes in pupillary reaction can also occur in both children and adults following head trauma, but they are not specifically more common in children. Tachycardia and diaphoresis are generally signs of autonomic nervous system activation and may occur in both children and adults, but they are not typically more common in children compared to adults following head trauma.

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: 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.

Correct Answer: B

Rationale: Using a doll to demonstrate the procedure is the most appropriate preoperative teaching method for a 2-year-old child. It helps them understand what to expect in a non-threatening way by providing a visual representation of the upcoming surgery. Explaining the procedure in simple terms may be too abstract for a child of this age, as they may not fully comprehend verbal explanations. Showing pictures of the hospital environment may not be as effective as using a doll, as it may not provide a concrete understanding of the actual procedure. Allowing the child to play with medical equipment is unsafe and does not adequately prepare them for the surgery, as it may lead to misunderstandings or fear regarding the equipment's actual use during the surgery.

Correct Answer: A

Rationale: In a neonate with a suspected tracheoesophageal fistula, elevating the head but giving nothing by mouth is crucial to prevent aspiration. Placing the neonate in a semi-upright position helps reduce the risk of reflux and aspiration of gastric contents into the lungs. Elevating the head for feedings (Choice B) would still pose a risk of aspiration as the neonate may aspirate during feeding. Feeding glucose water only (Choice C) is not appropriate and does not address the risk of aspiration associated with a tracheoesophageal fistula. Avoiding suctioning unless the infant is cyanotic (Choice D) is incorrect because suctioning may be necessary for maintaining airway patency, regardless of cyanosis, in a neonate with a suspected tracheoesophageal fistula.