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oxygen saturations

I think I posted this previously in the wrong forum so if you get this twice I apologize. I am a 47 year old female who continues to have SOB on exertion. I have been trying to get into a specialist for awhile but the wait time is long. I have had many tests, all normal except an echo with a pulmonary pressure of 48. I had two right heart caths that only showed a pressure of 30/10. The last one was over a year ago. Yesterday I did a walking o2 sat. I am an RN in a hospital. My sats dropped to 86% after a few minutes but came back to normal once I stopped. Today, I did it again and they stayed at 100% with my pulse at 150. Do I need to be concerned about yesterday's reading? I was SOB both times.
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1277598 tn?1271094194
MEDICAL PROFESSIONAL
I believe i answered this once but your Pulmonary Artery pressures are normal.  Low oxygen sats can be due to many other problems including cardiovascular disease, pulmonary airway diseases and lung tissue disorders.  Your heart rate response is abnormal and you definitely need further testing.  A pulmonary and/or cardiology doctor should be most helpful
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Avatar universal
Dr.Wilson,
  My family doctor walked me around with a sat monitor again and my sats dropped to 81%. She referred me to a specialist(rheumatologist who did my last RHC one year ago) and he walked me around and my sats did not drop. He blamed the other readings on a faulty sensor even though it was with 3 different monitors. My heart rate was at about 130. I didn't walk as fast or as long as she did though. He kind of left me with unanswered questions. I honestly thought by the end of the day I would be going home on oxygen but then nothing happened. He did do a lung scan that was normal. I don't know if I am walking around hypoxic or not. Could o2 sats vary day by day? I don't know what to do next and my family doc is away on vacation!
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