I just started my first semester too, and let me tell you, you are not alone. While what schnookimz said is partially true about most of it being common sense, there are some things you need to remember, like what % of alcohol is used in antiseptic handwashes for surgical asepsis, how long to wash your hands, the cycle and components of an infection (port of entry, reservoir, host, etc), how to apply sterile gloving, in what order to don PPE (e.g. gown before cap), etc.
What I would do is read the assigned chapters page by page, highlighting information that you think is particularly important. If your syllabus designates objectives per lecture, live by them. Find content in the text that is relevant to the objectives and ingrain it in your memory. If it is allowed, record lectures and rewrite them in your own words.
I have my first real test next Thursday, so I guess I (we) will find out how well these methods work then.
Oh also, if you come across a word that you don't know the meaning of, LOOK IT UP! There's no point in reading the text if you don't udnerstand it.