Final answer:
When performing a postpartum check, the nurse should assist the woman into a lateral position, wash hands and put on sterile gloves, and instruct the woman to empty her bladder.
Step-by-step explanation:
When performing a postpartum check, the nurse should assist the woman into a lateral position with her upper leg flexed forward to facilitate the examination of her perineum. This position allows for better visualization and assessment of the perineal area after childbirth.
The nurse should also wash hands and put on sterile gloves before beginning the check to prevent the risk of infection.
As for the instruction regarding urination, a full bladder can hinder the examination and palpation of the fundus. Therefore, the nurse can instruct the woman to empty her bladder before the examination.