Correct Answer: A

Rationale: In a neonate with gastroschisis, the bowel herniates through a defect in the abdominal wall without a covering membrane, which puts the neonate at high risk of infection. Immediate surgical repair is necessary due to the vulnerability of the exposed bowel to infection. Therefore, the most critical concern for the nurse to address in the plan of care of a neonate with gastroschisis is preventing infection. Poor body image is not a priority in neonatal care as neonates do not have body image concerns. Decreased urinary elimination is not typically a direct consequence of gastroschisis as it primarily affects the gastrointestinal system, not the genitourinary system. Cracking oral mucous membranes are not relevant to gastroschisis as it involves the lower gastrointestinal system, not the oral cavity.

Correct Answer: B

Rationale: After surgical intervention for imperforate anus, the infant should be placed in a side-lying position with the legs flexed. This position helps reduce edema and pressure on the surgical site, preventing strain and promoting comfort. Placing the infant supine with no head elevation (Choice A) doesn't offer adequate support and may increase pressure on the area. Side-lying with the legs extended (Choice C) doesn't help reduce edema and pressure effectively. Placing the infant supine with the head elevated 30 degrees (Choice D) isn't recommended as it may not provide adequate support and comfort needed for recovery.

Correct Answer: C

Rationale: A systolic blood pressure of 145 mm Hg falls within the range of 140-159 mm Hg, which is classified as Stage I hypertension. Normotensive individuals have a systolic blood pressure less than 120 mm Hg, making choice A incorrect. Prehypertension is characterized by a systolic blood pressure ranging from 120-139 mm Hg, excluding choice B. Stage II hypertension is diagnosed when the systolic blood pressure is greater than 160 mm Hg, making choice D incorrect. Therefore, the correct classification for a systolic blood pressure of 145 mm Hg is Stage I hypertension.

Correct Answer: D

Rationale: The correct answer is 'I have ringing in my ears.' Ringing in the ears is a severe adverse effect of Naproxen, indicating potential toxicity. This symptom warrants immediate medical attention. Choices A, B, and C are less concerning and do not directly indicate a severe adverse effect or toxicity related to Naproxen. Upset stomach, mild back pain, and occasional headaches are common side effects that may not require immediate physician contact.

Correct Answer: A

Rationale: Hirschsprung's disease, also known as congenital aganglionosis or megacolon, is characterized by the absence of ganglion cells in the rectum and, sometimes, extending into the colon. Choice A correctly explains the cause of Hirschsprung's disease. Choice B is incorrect as it describes celiac disease, which is related to gluten intolerance. Choice C is inaccurate as it describes symptoms of irritable bowel syndrome, not the cause of Hirschsprung's disease. Choice D is wrong as it pertains to lactose intolerance, not Hirschsprung's disease.