Correct Answer: B

Rationale: The correct action for the nurse to take when caring for a client with schizophrenia experiencing auditory hallucinations is to ask the client directly what they are hearing. This approach helps the nurse gain insight into the client's experience, establish effective communication, and provide appropriate support. Encouraging the client to lie down in a quiet room (Choice A) may not address the hallucinations directly. Telling the client that the voices are not real (Choice C) can be invalidating and may lead to further distress. Providing headphones for music (Choice D) may not be effective in addressing the client's hallucinations.

Correct Answer: B

Rationale: The correct answer is B, Hypokalemia. Furosemide is a loop diuretic that works by increasing the excretion of water and electrolytes, including potassium, leading to hypokalemia. Choice A, Bradycardia, is incorrect because furosemide does not typically cause a decrease in heart rate. Choice C, Increased blood pressure, is incorrect as furosemide is actually used to lower blood pressure by reducing fluid volume. Choice D, Increased urine output, is a common effect of furosemide due to its diuretic action but is not an adverse side effect.

Correct Answer: B

Rationale: The correct answer is B: 'Keep oxygen tanks upright at all times.' Oxygen tanks should be stored in an upright position to prevent leaks and accidents. Choice A is incorrect as smoking should never be allowed near oxygen due to the risk of fire. Choice C is incorrect as oxygen equipment should be stored in a well-ventilated area, not in a closet. Choice D is incorrect as oxygen tanks must be kept a minimum of 5 to 10 feet away from heat sources to prevent combustion. Therefore, the best practice is to keep oxygen tanks upright to ensure safety.

Correct Answer: D

Rationale: The correct answer is D: Oxygen saturation. The priority assessment in this situation is oxygen saturation because postoperative clients are at risk for respiratory complications, such as hypoxia due to factors like anesthesia effects, impaired lung function, or pain interfering with deep breathing. Monitoring oxygen saturation is crucial to detect any respiratory compromise early. Capillary refill, bowel sounds, and temperature are important assessments but are not the priority in this immediate postoperative period.

Correct Answer: D

Rationale: During a 12-lead ECG, the client needs to remain still to obtain accurate readings. Therefore, instructing the client to remain still is essential. Choices A, B, and C are incorrect because fasting is not necessary for an ECG, providing a warm blanket is not a standard procedure, and applying cold compresses may interfere with the ECG results.