A nurse is preparing to administer warfarin to a client who has chronic atrial fibrillation. Which of the following laboratory values should the nurse monitor prior to administering the medication?

Choice A Reason:
"I will apply heat to my affected ankle to decrease swelling." Heat application is generally not recommended for acute injuries like ankle sprains. Heat can increase blood flow and potentially worsen swelling. Cold therapy (like ice) is typically advised in the early stages to reduce inflammation and swelling.
Choice B Reason:
"I can bear full weight on my affected ankle." For a grade 2 ankle sprain, bearing full weight on the affected ankle might not be advisable initially. Grade 2 sprains involve partial tearing of ligaments and usually require some period of rest or limited weight-bearing to allow healing.
Choice C Reason:
"I can dangle my affected ankle from the edge of the bed. “Dangling the affected ankle from the edge of the bed is a common recommendation to help with gentle movement and improve blood flow without putting excessive stress on the injured ankle. This activity can aid in the recovery process and is often recommended.
Choice D Reason:
"I will wrap my affected ankle with an elastic bandage. “Wrapping the affected ankle with an elastic bandage is a supportive measure recommended for managing ankle sprains. It helps provide compression, support, and stabilization to the injured area, assisting in reducing swelling and providing comfort.

Choice A Reason:

Setting the degree of flexion and extension as tolerated by the client is generally appropriate in a CPM device, but this should be done within the prescribed range recommended by the healthcare provider. Simply allowing the client to adjust the degree of flexion and extension without guidance might lead to overextension or inadequate movement, potentially causing discomfort or hindering recovery.

Choice B Reason:

Padding the CPM device with a thick pillow isn't the recommended approach. CPM devices typically come with appropriate padding to ensure comfort and proper positioning. Using a thick pillow might alter the device's mechanics or cause uneven support, affecting the intended movement of the knee.

Choice C Reason:

Placing the client in high-Fowler's position (sitting upright at a 90-degree angle) isn't a standard or necessary position for using a CPM device after a knee arthroplasty. The client can typically use the CPM device while lying in a comfortable and relaxed position, following the healthcare provider's instructions regarding positioning during CPM therapy.

Choice D Reason:

Aligning the client's joints with the joints on the frame is essential for the correct function of the CPM device. This alignment helps in providing the intended range of motion without causing unnecessary stress or strain on the knee joint.