A patient with a total knee replacement is learning to use a prescribed continuous passive motion machine. Which outcome is the main purpose of the machine?
Correct answer: B. To maintain knee movement and reduce stiffness
- A. To replace all active muscle exercises
- B. To maintain knee movement and reduce stiffness
- C. To keep the knee completely straight for healing
- D. To provide resistance training for the quadriceps
Explanation
Continuous passive motion gently moves the knee to help preserve range of motion and reduce stiffness. It does not replace active rehabilitation, provide resistance training or require the knee to remain completely straight.
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About Orthopaedic Nursing
Covers fractures, dislocations, arthritis, osteoporosis, joint replacement, spinal disorders and complications of immobility. It includes neurovascular assessment, traction and cast care, mobility assistance, pain control, prevention of pressure injuries and deep vein thrombosis, and the difference between compartment syndrome and ordinary postoperative swelling.
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