I'm studying for an August teest like yourself. I wish I knew the answer to a thousand questions like that. I think of it like this:
If it's in first aid: Yes, it's often tested.
If it's in a review book: It's tested but to a varying degree. Obviously depending on the review book.
If you remember it from class but haven't found it in a review book: LOW YIELD. FLush out your lobes or something.
For cholinergic receptors, I have a really stupid mnemonic:
Kick (qiq) at the gates
The meaning is pretty obscure but it goes like this:
M1 : G-protein q-type
M2 : G-pritein 1-type
M3 : G-protein q-type
Nn
Nm both ligand gated.
So M1,2,3,Nn,Nm spell qiq 2xgate
Gaad, that's a lame mnemonic. But once you get it in your head you'll remember forever.
I think antiarrhythmics are worth looking at. Although I think they are really confusing.
Just did webpath hematology questions today. Man, I got a 50%. I hate hematology. I don't get all those segs and bands and metas (wtf?) and what have you.
Later