We have different labs, we have 'skills lab' and 'sim lab' in skills lab we usually practice skills on each other (or on a fake arm, mannequin... skills like BP, respirations, HR, IVs, giving meds, sterile dressing, Foleys) then in sim lab we go through different scenarios without any help from instructors, giving meds, changing dressings, etc. My favorite part is with the sim man (this really expensive mannequin that talks and breathes and can actually die) we are put in a situation where we have to use the crash cart and "call" a doctor to order meds, etc. That parts fun because we work together to try and figure it out then afterwards talk about what we did wrong/right.
Clinical is a completely different ball game... typically we get one patient. We go up to the hospital to get meds/labs on the patient then do a lot of paperwork before the actual clinical day. Then we either have two 6-hour days or one 12-hour day a week. We basically do everything the RN does (only with our instructor present) this includes giving meds, starting IVs, foley catheters, etc. We help out the CNAs with vitals, bed baths, etc. Basically anything you can find to do you do it. It's a lot of fun and my favorite part of nursing school altogether although the paperwork is stressful because we don't have a lot of time to finish it before the actual clinical day and there is a LOT of stuff to do, especially the meds. At the nursing home my patient would have 20+ meds I'd have to reserach and put on my med sheet (brand name, generic name, type of med, side effects, etc.) that takes awhile.
Labs and clinicals are the FUN part of nursing school... class on the other hand, that's where it can get tough and where a lot of students don't measure up. The trick is to balance the both. It can be done, you just have to want it! When you're in nursing school your life is nursing school. Good luck and congrats!