Final answer:
The nursing assistant should stand on the weaker side of the resident when helping with ambulation after a stroke.
Step-by-step explanation:
When helping with ambulation for a resident who is recovering from a stroke, the nursing assistant (NA) should stand on the resident's weaker side. This is because the weaker side may be more prone to instability and the NA can provide support and assistance to prevent falls. Standing on the weaker side also allows the NA to be closer to the resident and provide immediate assistance if needed.