Ask the patient to abduct the arm and hold it midway between flexion and extension. Support the patient's arm by holding the wrist. Instruct the patient to extend the arm
Figure 21-23 Technique for testing flexion of the forearm.
against your resistance. This is a test of extension of the forearm by the radial nerve from roots C6 to C8. This test is demonstrated in Figure 21-24.
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