Correct Answer: B

Rationale: The correct answer is B. The circumference of the upper arm above the insertion site of the PICC should be measured at the time of insertion and then again during assessments. An increase in circumference could indicate deep vein thrombosis, which could be life-threatening. Choice A is not a concern as changing the dressing 7 days ago is within the recommended timeframe. Choice C is not alarming as the catheter not being used for 8 hours does not necessarily indicate a problem. Choice D indicates proper catheter care by flushing it with sterile saline after medication use, so it does not require provider notification.

Correct Answer: C

Rationale: The correct information that the nurse should include in the teaching about a CPAP device is that it delivers a preset amount of airway pressure throughout the breathing cycle. This consistent positive airway pressure helps keep the airway open during both inspiration and expiration. Choice A is incorrect as CPAP does not deliver pressure only at the beginning of each breath. Choice B is incorrect because CPAP provides a constant level of pressure without continuous adjustments throughout the cycle. Choice D is incorrect as CPAP does not provide positive pressure at the end of each breath; instead, it maintains a continuous positive pressure.

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: C

Rationale: Keeping the client's neck in a midline position is essential when caring for a client with increased intracranial pressure (ICP) as it helps promote optimal blood flow and reduces the risk of further increasing ICP. Placing pillows behind the client's head (Choice A) may not be recommended as it could potentially increase ICP. Putting the client in a Sims' position (Choice B) and maintaining hip flexion at a 90° angle (Choice D) are not directly related to managing increased ICP and are not the priority interventions in this situation.

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.