Correct Answer: B

Rationale: The correct answer is B: 'Avoid lying down after meals.' This instruction is important for clients with GERD to prevent acid reflux. Lying down after meals can worsen GERD symptoms by allowing stomach acid to flow back into the esophagus. Choices A, C, and D are incorrect. Choice A is incorrect because lying flat after meals can increase the risk of acid reflux. Choice C is incorrect because hot liquids may aggravate GERD symptoms. Choice D is incorrect because consuming a high-carbohydrate snack at bedtime can also trigger acid reflux in individuals with GERD.

Correct Answer: A

Rationale: Administering oxygen is the initial step in managing chest pain. Oxygen helps improve oxygenation levels in the blood, which is crucial in cases of chest pain. Repositioning the patient, providing pain relief, or administering nitroglycerin may be necessary steps depending on the underlying cause, but administering oxygen takes precedence as it addresses the primary concern of oxygen supply to the body during chest pain.

Correct Answer: B

Rationale: The correct answer is to monitor the client's respiratory rate. This assessment is crucial in the postoperative period to detect any respiratory complications such as hypoxia or respiratory distress. Assessing pain level (Choice A) is important but may not be the top priority as respiratory status takes precedence. Measuring blood pressure (Choice C) is also important but not as critical immediately postoperatively as monitoring respiratory function. Checking bowel sounds (Choice D) is relevant for assessing gastrointestinal function but is typically not the top priority in the immediate postoperative phase.

Correct Answer: B

Rationale: The correct answer is B. A high PaCO2 level (55 mm Hg) in a client with chronic emphysema suggests respiratory acidosis, which requires further treatment. In chronic emphysema, impaired gas exchange leads to elevated carbon dioxide levels in the blood. Option A (PaO2 level of 89 mm Hg) is near the normal range and does not indicate immediate treatment. Option C (HCO3 level of 25 mEq/L) and option D (pH level of 7.37) are within normal limits and do not suggest the need for further treatment in this context.

Correct Answer: C

Rationale: The correct action the nurse should take when caring for a client experiencing acute alcohol withdrawal is to administer lorazepam as prescribed. Lorazepam is a benzodiazepine used to prevent seizures and manage agitation in clients undergoing alcohol withdrawal. Administering haloperidol (Choice A) is not recommended in alcohol withdrawal as it may lower the seizure threshold. Keeping the client in a supine position (Choice B) is not specifically indicated in managing alcohol withdrawal. Encouraging the client to drink fluids with meals (Choice D) is important for hydration but does not address the acute symptoms of alcohol withdrawal.