Final answer:
The nurse should place the client in the lithotomy position when preparing to change a Foley catheter insertion on a female client.
Step-by-step explanation:
The nurse should place the client in the lithotomy position when preparing to change a Foley catheter insertion on a female client. In the lithotomy position, the client lies on their back with their legs elevated and flexed, allowing easy access to the genital area for the procedure.