If you are reading this thread, you probably fought like hell to get back into the woods after cardiac problems. Re-assess your risks and keep hunting!
After the last 18 months on blood thinners, I had to re-access what I carry into the woods. The most significant risk I have is bleeding out from an accidental cut. I am no expert, but I have had law enforcement training on trauma care. There are some really good products out there to bring you home alive.
Look into the Israeli bandage and the North American rescue tourniquet. The Isreali bandage will handle anything on 90% of your body.
The tourniquet is for that "oh shi%" moment when you just stabbed yourself in the leg with a broadhead or a severe cut on or near a vein, Do not buy cheaply "made in China" substitutes, get the one produced by North American Rescue.
Do not be reluctant to use the tourniquet. The global war on terror has shown us that tourniquets save lives and limbs. They can be used for hours without losing limbs. Do your own research. There are plenty on online sources for training.
Watch the video tutorials and learn to apply these two tools on yourself, one-handed. The time to learn is not while you or your partner is bleeding. I have also added a pair of $15 cut resistant gloves to my kill kit.
This fall will be my first trip to the elk mountains since my heart stints. In addition to the bandages, I have added a Garmin In-reach device with an SOS button. It will stay in my pack when I return to the midwest and hunt whitetails. I may be 1/2 mile from home and have no cell phone signal. The SOS button at least gives me a chance to summon help as I deal with the bleeding.