I Am Planning On Going Elk Hunting And I Have

I am planning on going elk hunting and I have received a pacemaker for A-fib 10 days ago. It is also correcting my low pulse rate which has been increased from 38 to 60 so they can give me a beta blocker. The meds have reduced the occurrence of A-Fib and the length. My question is if I am packed into my hunting camp and feel like I may be having a stroke, is the a med I can take along to immediately address the issue since time is such a critical factor? I'm also taking 325 mg of coated aspirin daily.