Correct Answer: C

Rationale: The priority intervention for an infant with an omphalocele is to cover the intact bowel with a nonadherent dressing to protect the exposed organs and prevent infection. This intervention is crucial to prevent injury and maintain the infant's safety. Initiating feedings or maintaining pain management are not the immediate priorities in the care of an infant with an omphalocele. Performing immediate surgery may be required in the future, but initially, covering the bowel is the first critical step in management.

Correct Answer: B

Rationale: Postoperative teaching should focus on assessing bowel function to ensure the colostomy is functioning properly. This includes monitoring stool output, color, consistency, and signs of infection or blockage. Choice A, dilating the stoma, is not recommended without healthcare provider guidance, as it can lead to complications. Choice C, limitation of physical activities, may not be as crucial immediately after colostomy creation. Choice D, measures to prevent prolapse of the rectum, is more relevant for conditions like rectal prolapse and not specifically for a colostomy.

Correct Answer: B

Rationale: The correct answer is B. Meckel diverticulum often presents with intestinal bleeding, which can vary in severity. It is a congenital condition, meaning it is present from birth, not acquired during childhood (choice A). Meckel diverticulum is slightly more common in males than in females, so it does not occur more frequently in females (choice C). While some cases of Meckel diverticulum may require surgical intervention, medical interventions can also be sufficient to treat the problem, so it is not always necessary to resort to surgery (choice D).

Correct Answer: C

Rationale: Frequent spitting up is indeed a common symptom of gastroesophageal reflux in infants. It is caused by the backward flow of stomach contents into the esophagus, leading to infants regurgitating milk or formula shortly after feeding. Projectile vomiting (choice A) is more commonly associated with conditions like pyloric stenosis rather than gastroesophageal reflux. Bilious vomiting (choice B) often indicates an obstruction in the gastrointestinal tract. Diarrhea (choice D) is not typically a primary symptom of gastroesophageal reflux in infants.

Correct Answer: B

Rationale: The most appropriate action for a child with epistaxis is to pinch the nose and lean forward. This technique helps stop the bleeding and prevent aspiration of blood. By applying pressure to the bleeding vessels and allowing the blood to drain out of the nostrils instead of being swallowed, the risk of nausea and airway obstruction is reduced. Having the child lie flat (Choice A) may lead to blood flowing down the throat, causing potential choking. Applying a warm compress (Choice C) is not typically recommended for epistaxis as cold compresses are more effective. Encouraging deep breathing (Choice D) is not directly related to managing epistaxis.