If you have never been in an emergency room or working with doctors and nurses, then it is highly unlikely that you would encounter or feel the sudden panic of not having everything you need at the ready to save a patient's life. Since medical professionals cannot use basic first aid kits you buy off of store shelves, they need a whole lot more. That is where medical supply companies come in. They create medical product kitting to fit specific emergency needs. The following kits are just a few examples of what hospitals and clinics can purchase.
Cardiac Arrest Kit
In a cardiac arrest kit, medical professionals can find tubes of defibrillator gel, sterile paper sheeting, rubber gloves, razor (in case the patient has a very hairy chest and hair needs to be cleared before the defibrillator pads can be adhered), and manual air bag to intubate a patient that has also stopped breathing and needs air pushed into his/her lungs. A few other items may be included, depending on the company doing the medical product kitting. Facilities may also request custom cardiac arrest kits in prepackaged, sterile bags or packaging if the facilities want specific items that are not normally included.
Major Trauma Kit
Major trauma kits include gloves, wound dressings, paper sheeting, scissors for cutting off clothing, bandage shears, lighted tweezers for removing embedded debris from wounds/flesh, sterile scalpel, tubing for intubation and breathing, tubing for releasing trapped fluid in lungs, abdomen, and the chest cavity, syringes for flushing wounds so that the professionals can see what is going on, etc. In some trauma kits, clamps designed to stop profusely bleeding blood vessels are included so that staff can stop bleeding just long enough to get x-rays ready before major surgery begins. Other minor surgery implements are common in these kits as well.
A surgical kit is completely sterile and very large. There is enough supplies in it for any possible outcome in surgery, including heavy bleeding and the removal of body tissues. Surgical kits can be outfitted to specific kinds of surgeries, too. For example, if a patient is having an organ removal or transplant, the kits will include soaking and catch tubs for the organs removed and/or replaced, and lots of saline solution to keep organs sterile and clean. Lots of blood-absorbing, sterile cloths and bandages are also included, and needles with surgical "thread" are in the kit as well.