Correct Answer: B

Rationale: The correct answer is B: "Increase intake of high-potassium foods." Furosemide is a loop diuretic that can lead to hypokalemia, a condition characterized by low potassium levels. To prevent this adverse effect, the client should increase their intake of high-potassium foods. Choice A is incorrect because furosemide typically leads to decreased blood pressure, not increased. Choice C is incorrect because furosemide is used to reduce swelling, not increase it. Choice D is incorrect because the second dose of furosemide should be taken in the morning to prevent nocturia.

Correct Answer: D

Rationale: The correct answer is D. During an electromyography (EMG) procedure, small needle electrodes are inserted into the muscles to identify muscle weakness and evaluate local nerve responses. This information is crucial for the client to know beforehand. Choice A is incorrect because radioisotopes are not used in EMG procedures. Choice B is incorrect because flushing is not a common occurrence during EMG. Choice C is incorrect because claustrophobia is more relevant to MRI or CT scans, not EMG procedures.

Correct Answer: A

Rationale: The correct instruction the nurse should provide is that the medication can cause the client's urine to turn a dark color, which is a harmless effect of carbidopa/levodopa. This is due to the metabolites of levodopa. Immediate relief is not expected after taking the medication because it may take weeks to months to achieve the full therapeutic effect. Taking the medication with a high-protein food is not recommended as protein can interfere with the absorption of levodopa. Skipping a dose of the medication if the client experiences dizziness is incorrect as dizziness may be a side effect of the medication, and doses should not be skipped without consulting a healthcare provider.

Correct Answer: D

Rationale: The correct answer is D. During an electroencephalogram (EEG), flashes of light or patterns are often used to stimulate the brain and provoke responses, helping to assess brain activity and the potential for seizures. Choices A, B, and C are incorrect because washing the hair, receiving a sedative, and refraining from eating are not usually related to EEG procedures and do not reflect understanding of the teaching provided by the nurse.

Correct Answer: B

Rationale: When using the ABC approach to client care, the nurse should identify that the priority intervention is administering oxygen. In this scenario, the client's oxygen saturation is only 91%, which is below the normal range of 95% and above. Oxygen is essential for adequate tissue perfusion and oxygenation of vital organs. Administering oxygen takes precedence over other interventions to ensure the client's physiological needs are met first. Choice A can be addressed after ensuring adequate oxygenation. Choice C is important for preventing postoperative complications but is not as urgent as addressing oxygen saturation. Choice D is a common postoperative intervention, but in this case, ensuring adequate oxygenation is the priority over IV fluid administration.