Final answer:
If a patient has a severe infection with a Mycobacterium that is resistant to all but one antitubercular drug, a combination of antitubercular drugs will likely be chosen to fight the infection.
Step-by-step explanation:
If a patient has a severe infection with a Mycobacterium that is resistant to all but one antitubercular drug, and the patient has had an allergic reaction to that drug in the past, the nurse can anticipate that a combination of antitubercular drugs will be chosen to fight the infection.