The terms "First Aid" an d "First Aid Kit" have become a misnomer, especially on this forum. The kits most people carry and call their "First Aid" kits are actually much more, the term "First Aid" is used for a lack of a better term. The kit you mentioned, AMK's Marine 3000, is not a first aid kit, it is a multi-day/multi-person basic medical kit for a small vessel or station. It is a well put together kit. Most of the commercially avalible first aid kits on the market today not only provide supplies for "First Aid" but also basic supplies for less severe medical issues and emergencies.

While I no longer teach First Aid anymore, I do teach Paramedics and EMTs as well as an occasional First Responder course I teach my students that First Aid is the same for all providers, from the layperson to ED Doctor, manage the ABCs. The goal of the ABCs is to find and treat life treatening emergencies. The ABCs never change (Airway/Breathing/Circultion including bleeding control and initial treatment of shock) the tools do as a providers level of care increase.

So, for me, a "First Aid" kit is pretty basic:

• CPR Mask or Pocket Blue BVM & OPAs
• Surgical Cric Kit
• Israeli Dressing (or similar) & Quick Clot or Trauma Dex
• Nytrile Gloves
• Heat Sheet
• Trauma Shears

This allows me to manage the ABC's until I can get to a larger kit. These are the items I carry in an easy to access locations on my vest, in my search kit, etc. Typically, they are kept in a different pouch or pocket than the rest of my "First Aid" kit or medical gear.

So the limit? The limit is as much as you can justify carrying for your specific needs. left over space? Add medical gear or water... But then again, I am a Medic who live in Arizona... so I never feel like I have enough of either!