Correct Answer: D

Rationale: The correct answer is D: Reduce gastric acid secretion. Proton pump inhibitors (PPIs) work by reducing gastric acid secretion, which helps prevent further irritation of the gastric mucosa and allows ulcers to heal. While promoting healing of the gastric mucosa (Choice A) is an indirect outcome of reducing gastric acid secretion, the primary mechanism of PPIs is to lower acid levels. Choice B, neutralizing the effects of stomach acid, is typically associated with antacids, not PPIs. Inhibiting the growth of Helicobacter pylori (Choice C) is usually achieved with antibiotics, not PPIs.

Correct Answer: D

Rationale: The correct first action for the nurse to take when a client receiving TPN is experiencing nausea and vomiting is to check the client's TPN bag for solution accuracy. This is crucial to ensure that the correct solution is being administered and to address any potential errors. Checking the blood glucose level or administering an antiemetic may be necessary interventions but addressing the TPN bag's accuracy should be the priority to prevent any complications related to incorrect TPN solution.

Correct Answer: B

Rationale: The correct answer is B. Hydromorphone can cause constipation, a common side effect of opioids. Therefore, it is crucial to auscultate bowel sounds to monitor for signs of decreased gastrointestinal motility. Monitoring blood pressure (choice C) and respiratory rate (choice D) are important but not the priority in this scenario as constipation is a common issue with opioid use. Increasing the dosage of the medication (choice A) is not appropriate without assessing the client's bowel function first.

Correct Answer: B

Rationale: The older brother's withdrawal likely indicates emotional trauma or stress from the near-drowning event. Asking how he felt provides an opportunity for emotional support and allows the child to express feelings that may need addressing. Involving him in supporting the child may be overwhelming and not address his emotional needs directly. Asking the parents for more information may not allow the older brother to express his own feelings. Simply reassuring him that everything is fine now may dismiss his emotional experience without providing a chance for him to process his feelings.

Correct Answer: C

Rationale: Diuretics must be continued as long as the fluid problem persists to prevent heart failure symptoms.