Final answer:
To assess a male client's deep tendon reflexes, the nurse should support the joint where the tendon is being tested and use a reflex hammer with a brisk tap.
Step-by-step explanation:
During a routine physical examination to assess a male client's deep tendon reflexes, the nurse should make sure to support the joint where the tendon is being tested. This is because reflex testing involves striking the tendon with a rubber mallet to quickly stretch the muscle, activating the muscle spindle, and sending a signal to the spinal cord that causes muscle contraction. The reflex hammer should be used with an appropriate grip and with a brisk tap to elicit the reflex, indicating the lower motor neuron (LMN) is functioning properly. Supporting the joint allows for an accurate assessment of the reflex without interference from other muscle movements.