A nurse is reviewing the ABG values of a client who has pneumonia. Which of the following findings indicates the client is developing respiratory acidosis?

Choice A: This is incorrect because Sims position is used for clients who have lower back pain, abdominal surgery, or enemas. It is not appropriate for clients who have a closed head injury.

Choice B: This is incorrect because modified Trendelenburg position is used for clients who have hypovolemic shock or poor venous return. It is not appropriate for clients who have a closed head injury.

Choice C: This is correct because semi-Fowler's position is used for clients who have increased intracranial pressure, respiratory distress, or head trauma. It elevates the head and chest to reduce cerebral edema and facilitate breathing.

Choice D: This is incorrect because prone position is used for clients who have acute respiratory distress syndrome, spinal cord injury, or pressure ulcers. It is not appropriate for clients who have a closed head injury.

Choice A: This is correct because aligning the client's joints with the joints on the frame can ensure proper functioning and comfort of the CPM device. The nurse should adjust the length and width of the device to fit the client's leg and secure it with straps.

Choice B: This is incorrect because padding the CPM device with a thick pillow can interfere with its movement and cause pressure on the leg. The nurse should use only thin padding or no padding at all for the CPM device.

Choice C: This is incorrect because placing the client in high-Fowler's position can cause flexion contractures and impair circulation in the leg. The nurse should place the client in supine or semi-Fowler's position with the leg elevated on pillows.

Choice D: This is incorrect because setting the degree of flexion and extension as tolerated by client can cause excessive pain and damage to the joint. The nurse should set the degree of flexion and extension according to the provider's prescription and gradually increase it as ordered.