Final answer:
To provide colostomy care for a client with MRSA, the nurse should obtain a gown and gloves.
Step-by-step explanation:
To provide colostomy care for a client with a healthcare-associated infection caused by MRSA, the nurse should obtain gowns and gloves. These protective items are necessary to prevent the transmission of MRSA and maintain a sterile environment during the procedure. While gloves and masks may be used for other infection control measures, they are not specifically required for colostomy care in this scenario.