PO2-scared

I had an abg test today and my po2 was low...70. I have been having sob and purplish nails. I am only 25 and am so scared right now I dont know what to do with myself. I had a chest ct, cardiac mri...all normal. The abg came out only with the po2 low. and my pft came out with my dlco being slightly lowered. I never smoked and was okay 2 months ago. I am afraid that I am dying.

[jimgreg]

you had this  test awake??? 70 is low...mine is  sometimes 63 wile asleep....you need to   redo this test on the pft..the oxygen Sat's at 70  are low low..and wile being awake,,they say anymore on that...this low  i would thank they would admitt you  but nowadays you have to be bad..this sounds  like a abnormal bag....did you take  also  the pulse oximeter???  or did they take  it out of the arteries  in ur wrist??  how do you feel in your over all days????  im sevre  osa..mine drops below 88%  for unknown amount of time  to 63%...wile asleep iom on bi pap  and 5 lpm o2...did the doc say anything about anytghing???? yes a purplish color to the shin mostly the nails is a symptom of low oxygen below 88% you being at 70% in the daytime  with a abg  is the best test you can get...the pulse oximeter can flusuate....but on the  other hand  they can do a  ( abg)  test  1 day and te next day be totally difft..this is a fact,..google  it...also  you need to  try a finger pulse  oximeter,,for your own benefits...do you have any swelling  anywere  like your ankles  or calves??  I WOULD HAVE SOMEONE  USE A PULSE  OXIMETER  TO RECHECK YOU A FEW TIMES..UR DOC MIGHT HAVE ONE,,OR YOU LOCAL  HEATH DEPT..OR GO  TO THE FIRE HOUSE  SAY YOU JUST WANT TO KNOW WHAT YOU O2  IS........