Reply to Family Physician's Post: I AM A FIREFIGHTER, AND I HAVE TO RETAKE MY STRESS TEST. THE 1ST TIME I TOOK IT, MY VO2 MAX WAS 36.5%, THEY SAID I NEED A 42.5% TO MEED THEIR STANDARD, OR I MAY LOSE MY JOB. I DIDN'T KNOW WHAT ELSE I COULD DO, OR IF THERE IS A MEDICATION THAT WOULD HELP ME OBTAIN THE STANDARD.