Final answer:
When dressing a 77-year-old stroke patient, the nurse should put the shirt on the unaffected arm first.
Step-by-step explanation:
When dressing Mr. A, a 77-year-old client who has had a stroke, the nurse aide should put the shirt on the unaffected arm first. This approach helps to ensure the client's comfort and minimize any potential discomfort or risk of injury. The nurse aide can then proceed to dress the affected arm, followed by the rest of the clothing.