It satisfies the USMCA listing, which accepts a provincial licence, but not the other two conditions. The nurse still needs the health-care worker certification for admission and a state licence to practise where the hospital sits.
The listing is met; the admission and practice rules are separate
Registered Nurse appears on the USMCA professional list with a qualification of a state or provincial licence or a Licenciatura degree, so a Quebec licence answers the question of whether the applicant belongs to the profession. Two more layers apply before work can begin. Federal law requires nurses and several other health-care occupations to present a health-care worker certification at admission; an officer at the port of entry will ask for it, and a pending application is not a certification. State law then governs practice: the hospital's state board licenses nurses independently, and most boards require an examination, a credential verification and a background check. An applicant who arranges the port-of-entry visit before the state licence issues may be admitted yet unable to work, or may be told by the employer that onboarding cannot begin. The practical rule is to treat the slowest of the three as the true start date.
Hypothetical example: A Canadian citizen dietitian accepts a hospital nutrition role and brings the degree required for that profession. The first review matches the listed profession to the actual nutrition duties, checks the credential and separates any local practice rule from immigration eligibility. If the letter instead assigns food-service scheduling with no professional nutrition work, classification may fail despite a sound academic record. She should obtain a detailed duty description before committing to the move. TN also requires a prearranged U.S. employer and a temporary purpose; it cannot be used to operate the business that engages the applicant.