Final answer:
The nurse should stand near the client's hip, with legs shoulder width apart and one foot near the head of the bed.
Step-by-step explanation:
When helping a client sit up on the side of the bed after positioning them to move from the bed into a wheelchair, the nurse would stand near the client's hip, with legs shoulder width apart and one foot near the head of the bed. This position allows the nurse to provide support and stability to the client as they transition from lying down to sitting up. By standing near the client's hip, the nurse can assist with lifting and maintaining balance.