Nursing Elites

1. Which pediatric condition is characterized by a "string sign" on an upper GI series?

• A. Intussusception
• B. Hypertrophic pyloric stenosis
• C. Hirschsprung disease
• D. Meckel diverticulum

Correct answer: B

Rationale: The correct answer is B: Hypertrophic pyloric stenosis. The "string sign" is associated with hypertrophic pyloric stenosis, a condition where the pyloric canal is narrowed, leading to gastric outlet obstruction. Intussusception (choice A) typically presents with colicky abdominal pain and currant jelly stools. Hirschsprung disease (choice C) is characterized by the absence of ganglion cells in the distal colon. Meckel diverticulum (choice D) is a congenital outpouching of the small intestine that can present with painless rectal bleeding.

2. The nurse is teaching parents about the effects of media on childhood obesity. The nurse realizes the parents understand the teaching if they make which statements? (Select all that apply.)

• A. Advertising of unhealthy food can increase snacking
• B. Increased screen time may be related to unhealthy sleep
• C. There is a link between the amount of screen time and obesity
• D. All of the above

Correct answer: D

Rationale: Increased screen time is associated with unhealthy habits, such as poor sleep and snacking, which contribute to obesity, but it does not necessarily improve nutrition knowledge.

3. What is the purpose of using cimetidine (Tagamet) for gastroesophageal reflux?

• A. The medication reduces gastric acid secretion.
• B. The medication neutralizes the acid in the stomach.
• C. The medication increases the rate of gastric emptying time.
• D. The medication coats the lining of the stomach and esophagus.

Correct answer: A

Rationale: The correct answer is A. Cimetidine (Tagamet) is an H2 receptor antagonist that works by reducing gastric acid secretion. This action helps to decrease the acidity in the stomach, which in turn reduces the symptoms of gastroesophageal reflux. Choice B is incorrect because cimetidine does not neutralize acid but rather decreases its production. Choice C is incorrect as cimetidine does not affect the rate of gastric emptying time. Choice D is incorrect as cimetidine does not coat the lining of the stomach and esophagus but instead works to reduce gastric acid secretion.

4. A 12-year-old girl has recently begun menstruating and is well into puberty. The child is visiting the health care provider today for a routine physical examination. Which finding should cause concern in the nurse?

• A. Breasts of slightly different sizes
• B. Irregular periods
• C. Vulvar irritation
• D. Supernumerary nipple

Correct answer: C

Rationale: Vulvar irritation may indicate an infection or other issues and should be further evaluated. In a pubescent girl, breasts of slightly different sizes and irregular periods are common variations of normal development. Supernumerary nipple, an extra nipple, is a benign condition that is not typically concerning during puberty.

5. What interventions should be implemented to maintain the skin integrity of a preterm infant born at 30 weeks?

• A. Avoid cleaning the skin
• B. Bathe the infant with sterile water
• C. Cleanse the skin with a gentle alkaline-based soap and water
• D. Thoroughly rinse the skin with plain water after bathing

Correct answer: B

Rationale: The correct intervention to maintain the skin integrity of a preterm infant born at 30 weeks is to bathe the infant with sterile water. Bathing with sterile water or a neutral pH solution is recommended to protect the delicate skin of preterm infants, which is more permeable and prone to damage. Choices A, C, and D are incorrect as avoiding cleaning the skin may lead to hygiene issues, cleansing with alkaline-based soap can be harsh on the delicate skin, and thoroughly rinsing with plain water after bathing may not be as gentle and protective for preterm infants.

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