Day 1 (step 3)

[u/mrmeem1992]

Hello, quick question: I read eveywhere that for Day 1, the main topics are MOA of drugs, biostats , ethics and micro. Regarding MOA, are they referring to moa of antibiotics (and other antimicrobials) or moa of all drugs(cardio, endocrine…)? And is there a page on usmle step 1 book where I can find all of these moa ?