Nails purple- at bas: These is typical in patient who have insufficient Oxygen exchange in the lungs. "Hypoxia" Has this occurred in the past? Did the general condition deteriorated ? like shortness of breath, weakness, Try not to use nail paint, so if appears again you will detect it easy. You should see a Dr.and have an arterial test " Oxygen Saturation" normal is 95%. at sea level.
Answered 7/16/2017
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