Following a motorcycle collision, a young adult client's fractured left tibia was surgically repaired and a long leg cast was applied. For the past two days, the client has been ambulating with the use of crutches. The client reports increased weakness in both forearms. Which action should the nurse take?

A. Watch client while crutch walking: Increased forearm weakness after two days of crutch use may indicate improper crutch technique, poor weight distribution, or excessive pressure on the upper extremities. Direct observation allows the nurse to assess gait pattern, weight bearing, and whether the client is incorrectly supporting weight through the axilla instead of the hands. This immediate assessment helps identify risk for nerve compression, muscle fatigue, or injury. B. Measure the blood pressure in both arms: Measuring blood pressure in both arms is typically done to assess for vascular abnormalities such as subclavian artery stenosis or aortic pathology. Forearm weakness related to crutch use is more likely musculoskeletal or related to improper assistive device technique rather than a vascular cause. C. Encourage additional rest periods: While rest may temporarily relieve muscle fatigue, it does not address the underlying cause of the forearm weakness. If the weakness is due to improper crutch positioning or incorrect weight bearing, continuing the same technique—even with rest—could lead to worsening strain or complications such as nerve compression injuries. D. Demonstrate arm strengthening exercises: Strengthening exercises can improve upper extremity endurance for clients using assistive devices, but initiating them without first evaluating the client’s current crutch technique may be inappropriate. Weakness in this context is more likely due to incorrect biomechanics rather than inadequate strength.