When standing, the cane should reach a height even with the natural waist.
When walking downstairs, the cane should be placed down on the step first, followed by the injured leg, and then the good leg.
The elbow should be straight when holding the cane.
The cane should be held in the hand of the same side that needs support.
Number 2 is correct.
Rationale: A cane can offer stability and balance to clients who have minor injuries, pain, or weakness. The proper order for coming down the stairs is to place the cane down on the step first, then step with the injured leg, and then step down with the good leg. The cane should reach a height even with the wrist, and the elbow should be slightly bent when holding the cane. Additionally, the cane should be held opposite of the side that requires support.