Oh, yeah. Multi-tool, anyone? Serviceable but not too much added weight, reasonable price (Not a $200 unit like some that you see around), and NOT with a set of driver bits to go with it.
TIA!
https://www.amazon.com/North-American-Rescue-Military-Issue/dp/B003EGD8YC
a roll of gauze,
duct tape (it's a dual purpose product),
splints (for immobilization),
4x4" pads,
tube of topical antibiotic ointment,
adrinalclick (the alternative to EpiPen mess),
aspirin (for MIs and possible MI's),
blade to cut anything (with a potential serration for cutting a seat-belt in an emergency),
oh and if you do have room, a pulse oximeter (it measures O2 in bloodstream and also heart rate ('cause measuring it in a crisis when you've not trained or practice is a nightmare)
... and maybe a couple of emergency space mylar blankets
I have a BP cuff and stethoscope but that's just me. It's entirely up to you on how prepared you think you might be.