The school nurse is teaching a group of adolescents about avoiding contaminated water during a mission trip. What should the nurse include in the teaching?

Correct Answer: B

Rationale: The correct answer is B: All are applicable. Ice, raw vegetables, and unpeeled fruits can be sources of contamination in areas where water purity is questionable. It's safer to avoid these during a mission trip to prevent waterborne illnesses. Choice A (Ice), C (Raw vegetables), and D (Unpeeled fruits) are all potential sources of contamination in areas with questionable water quality. Including all these items in the teaching will help adolescents make informed decisions to stay healthy during their mission trip.

Correct Answer: B

Rationale: The correct answer is B: Projectile vomiting. Pyloric stenosis in infants typically presents with projectile vomiting, which is forceful and projective in nature. This occurs due to the obstruction at the pylorus, leading to the stomach being unable to empty properly. Choices A, C, and D are incorrect. Bilious vomiting is more commonly associated with intestinal obstruction, blood in stools can occur in conditions such as necrotizing enterocolitis or allergic colitis, and failure to thrive is a nonspecific finding that can be seen in various pediatric conditions.

Correct Answer: B

Rationale: Liver transplantation offers the best chance of survival for children with cirrhosis, especially in advanced stages where the liver can no longer function effectively. Cirrhosis is a late stage of scarring of the liver caused by many forms of liver diseases and conditions, such as hepatitis and chronic alcoholism. While nutritional support, blood component therapy, and corticosteroids may be part of the treatment plan to manage symptoms and complications, they do not address the underlying cause of cirrhosis or provide a cure like liver transplantation does.

Correct Answer: A

Rationale: The Ortolani sign is a specific maneuver used during physical examination to detect hip instability or dislocation in infants. A positive Ortolani sign, where the hip is felt to slip back into the socket, is indicative of developmental dysplasia of the hip, a condition that can lead to long-term disability if not treated early. Romberg sign is used to assess sensory ataxia, Trendelenburg sign indicates weakness of the hip abductor muscles, and Gower's sign is seen in children with proximal muscle weakness climbing up their own body from a supine position due to conditions like muscular dystrophy.

Correct Answer: A

Rationale: A 'strawberry tongue' is a characteristic finding in Kawasaki disease. The presence of a 'strawberry tongue' is a classic sign of Kawasaki disease, along with other features such as conjunctivitis and rash. Choice B, polyarthritis, is not typically seen in Kawasaki disease. Choice C, hematuria, is not a common finding in Kawasaki disease but may be seen in other conditions. Choice D, rashes, are present in Kawasaki disease but are not as specific or characteristic as the 'strawberry tongue'. Therefore, the correct answer is A.

Correct Answer: A

Rationale: The most appropriate action for the nurse to take in this situation is to notify the healthcare provider immediately. This is important as the removal of the NG tube can disrupt postoperative care, especially in terms of maintaining gastric decompression. Inserting a new NG tube without practitioner direction can be unsafe and is not within the nurse's scope of practice. Similarly, replacing the NG tube or leaving it out should be decided by the healthcare provider to ensure the infant's safety and appropriate postoperative care.

Correct Answer: C

Rationale: The most common complication following surgical correction of esophageal atresia with tracheoesophageal fistula in infants is stricture formation. This complication occurs due to the healing process after surgery, leading to the narrowing of the esophagus. Gastroesophageal reflux (Choice A) can be a concern but is not the most common complication. Respiratory distress (Choice B) may happen but is not the primary complication. Aspiration pneumonia (Choice D) is a risk but is typically not as common as stricture formation in these cases.

Correct Answer: A

Rationale: Handwashing is indeed the most effective way to prevent the spread of hand, foot, and mouth disease in children. Proper hand hygiene helps in removing and killing germs that can cause infections. While isolating sick children and disinfecting toys are important measures to prevent the spread of diseases, they are not as effective as handwashing. Encouraging vaccination, in this case, is not relevant since there is no specific vaccine available for hand, foot, and mouth disease.

Correct Answer: C

Rationale: A high-calorie diet is recommended for children with cystic fibrosis due to their increased energy needs and malabsorption issues. Cystic fibrosis affects the pancreas, leading to poor digestion and absorption of nutrients, particularly fats, which requires dietary adjustments to maintain adequate nutrition. High carbohydrate (Choice A) is not the primary focus; the emphasis is on overall calorie intake. Low protein (Choice B) is not recommended as protein intake is essential for growth and development. Low fat (Choice D) is not the best option as fat-soluble vitamin absorption is already compromised in cystic fibrosis, hence fat restriction is not a priority.