I am 72 male. My oxygen level is around 98% However with slight exertion this drops to 82%After a while the O2 level goes back to normal. All these readings are from pulse oxymeter. What could be the reason for this would you recommend some medication.

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.