A 7-year-old is admitted to the hospital with persistent vomiting, and a nasogastric tube attached to low intermittent suction is applied. Which finding is most important for the nurse to report to the healthcare provider?

A. Gastric output of 100 mL in the last 8 hours.

B. Shift intake of 640 mL IV fluids plus 30 mL PO ice chips.

C. Serum potassium of 3.0 mEq/L.

D. Serum pH of 7.45.

Correct Answer: C
Rationale: A serum potassium level of 3.0 mEq/L is significantly low and indicates hypokalemia, which can lead to serious complications such as cardiac arrhythmias. Therefore, it is crucial for the nurse to report this finding promptly to the healthcare provider for immediate intervention. The other findings are not as critical in this situation. Gastric output of 100 mL in the last 8 hours may be expected in a patient with persistent vomiting. The shift intake of IV fluids and ice chips indicates fluid replacement, which is important but not as urgent as correcting electrolyte imbalances. A serum pH of 7.45 is within the normal range and does not indicate an immediate concern.

The caregiver is teaching a group of parents about injury prevention for toddlers. Which statement by a parent indicates a need for further teaching?

• A. I will keep all cleaning supplies locked away.
• B. I will teach my child how to swim this summer.
• C. I will make sure my child wears a helmet while riding a tricycle.
• D. I will place my child in a car seat for every car ride.

Correct Answer: B
Rationale: Teaching children how to swim is valuable, but parental supervision around water is essential to prevent drowning. It's crucial to emphasize constant supervision when young children are near water, regardless of their swimming abilities. The other choices (A, C, and D) demonstrate appropriate safety measures for injury prevention in toddlers, such as securing cleaning supplies, ensuring helmet use during tricycle rides, and using a car seat for every car ride.

The nurse is planning for a 5-month-old with gastroesophageal reflux disease whose weight has decreased by 3 ounces since the last clinic visit one month ago. To increase caloric intake and decrease vomiting, what instructions should the nurse provide this mother?

• A. Give small amounts of baby food with each feeding.
• B. Thicken formula with cereal for each feeding.
• C. Dilute the child's formula with equal parts of water.
• D. Offer 10% dextrose in water between most feedings.

Correct Answer: B
Rationale: Thickening formula with cereal is a recommended intervention for infants with gastroesophageal reflux disease (GERD) to help reduce vomiting and increase caloric intake. This modification can help the infant keep the food down better, reducing reflux symptoms while providing adequate nutrition. Giving small amounts of baby food with each feeding (Choice A) is not recommended for a 5-month-old with GERD as it may exacerbate symptoms. Diluting the child's formula with equal parts of water (Choice C) can lead to inadequate nutrition and is not advisable. Offering 10% dextrose in water between most feedings (Choice D) is not appropriate for managing GERD in infants and does not address the underlying issue of reflux.

The nurse is conducting an admission assessment of an 11-month-old infant with CHF who is scheduled for repair of restenosis of coarction of the aorta that was repaired 4 days after birth. Findings include blood pressure higher in the arms than the lower extremities, pounding brachial pulses, and slightly palpable femoral pulses. What pathophysiologic mechanisms support these findings?

• A. The aortic semilunar valve obstructs blood flow into the systemic circulation
• B. The lumen of the aorta reduces the volume of the blood flow to the lower extremities
• C. The pulmonic valve prevents adequate blood volume into the pulmonary circulation
• D. An opening in the atrial septum causes a murmur due to a turbulent left-to-right shunt

Correct Answer: B
Rationale: The correct answer is B. Coarctation of the aorta causes narrowing of the aorta, reducing blood flow to the lower extremities. This narrowing results in higher blood pressure in the arms compared to the lower extremities, along with stronger brachial pulses and slightly palpable femoral pulses. Choices A, C, and D are incorrect because they do not align with the pathophysiological mechanism of coarctation of the aorta, which specifically leads to reduced blood flow to the lower extremities.

The healthcare provider is preparing a teaching plan for the parents of a 6-month-old infant with GERD. What instruction should the healthcare provider include when teaching the parents measures to promote adequate nutrition?

• A. Alternate glucose water with formula
• B. Mix the formula with rice cereal
• C. Add multivitamins with iron to the formula
• D. Use water to dilute the formula

Correct Answer: B
Rationale: The correct instruction for promoting adequate nutrition in a 6-month-old infant with GERD is to mix the formula with rice cereal. This thickens the feed, reducing the risk of reflux, aiding in proper nutrition, and minimizing GERD symptoms. Choices A, C, and D are incorrect. Alternating glucose water with formula, adding multivitamins with iron to the formula, or diluting the formula with water are not recommended measures for promoting adequate nutrition in infants with GERD.