Final answer:
When a patient has a type 1 beta lactam allergy, doctors need to consider alternative antimicrobial drugs that do not belong to the beta lactam class.
Step-by-step explanation:
When a patient has a type 1 beta lactam allergy, it means they are allergic to penicillins and cephalosporins, which are types of beta lactam antibiotics.
Doctors would need to consider alternative antimicrobial drugs that do not belong to the beta lactam class.
Some examples of alternative antimicrobial drugs that could be considered are macrolides, fluoroquinolones, tetracyclines, or aminoglycosides.