I'm really concerned because Ive been checking my spo2 with a pulse oximeter every day, and its always around 98 or 99. But last night, I suddenly woke up and when I checked, my spo2 had dropped to 81. It went back to normal in just a couple of minutes. This is worrying me a lot because I had a chest x-ray done two months ago and everything looked fine. What could have caused this sudden drop?

Answered by 1 Apollo Doctors

Dr Ranjith Darla

General Practitioner

MBBS
3+ Yrs

Consult Now

Spirometry and pulmonary function tests is advised to the patient.

Dr. Ranjith Suggests...

Consult a Pulmonology Respiratory Medicine Specialist

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Answered 04/07/2025

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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.