Final answer:
The priority goal for the nurse is to prevent the introduction of microorganisms to the client.
Step-by-step explanation:
The priority goal for the nurse's observable intervention when providing care to an incontinent client with a history of methicillin-resistant Staphylococcus aureus (MRSA) is to prevent the introduction of microorganisms to the client.
By implementing proper infection control measures, such as proper hand hygiene, use of personal protective equipment, and cleaning and disinfection of the environment, the nurse can minimize the risk of transmitting MRSA to the client or other individuals.
While maintaining a clean environment and avoiding the introduction of microorganisms to the nurse's uniform are important, the primary priority is to prevent the spread of infection to the client.