What is cyanosis?
A person with cyanosis has blue skin, lips or nail beds caused by a lack of oxygen in the bloodstream. Causes for cyanosis include severe lung disease, respiratory distress, and respiratory failure.

What are the symptoms of cyanosis?
The most common symptoms of cyanosis are confusion, sleepiness, and breathing difficulty.

How does the doctor treat cyanosis?
The treatment of cyanosis requires the rapid administration of supplemental oxygen.