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: D

Rationale: In clients with DVT, assessing for pulmonary embolism is crucial as a clot in the lungs can be life-threatening. Sudden shortness of breath or chest pain are key signs of a pulmonary embolism. While monitoring for signs of bleeding is important due to anticoagulant therapy, the immediate concern is detecting a potential pulmonary embolism. Monitoring vital signs and pain in the affected limb are relevant aspects of care but are not as urgent as assessing for pulmonary embolism in this scenario.

Correct Answer: A

Rationale: All of these tasks fall within the PN's scope of practice, which includes performing surgical dressing changes, taking postoperative vital signs, and administering insulin under supervision. The RN can delegate these tasks to the PN safely. Choice A is the correct answer because all the tasks mentioned are appropriate for delegation to a PN. Choice B should not be assigned to a PN as only RNs should administer insulin. Choice C is suitable for delegation to a PN as obtaining vital signs falls within their scope of practice. Choice D is also appropriate for delegation to a PN as performing surgical dressing changes is within their scope of practice.

Correct Answer: D

Rationale: The correct intervention for a 5-week-old infant with hypertrophic pyloric stenosis presenting with projectile vomiting is to maintain intravenous fluid therapy. This is essential to maintain hydration before surgery. Instructing the mother to give sugar water only (Choice A) is inadequate and does not address the need for proper hydration. Offering oral rehydration every 2 hours (Choice B) may not be effective in cases of severe vomiting and could lead to further fluid loss. Providing Pedialyte feedings via nasogastric tube (Choice C) is an option, but in severe cases, intravenous fluid therapy is more effective in ensuring hydration and electrolyte balance.

Correct Answer: A

Rationale: Lacerations, especially deep ones, are prone to bacterial contamination and may require immediate intervention to prevent infection. Abrasions, contusions, and ulcerations are not as likely to lead to immediate serious complications like infections as lacerations.