MCQ IN MEDICINE

Detailed explanation-1: -Cyanosis is the medical term for when your skin, lips or nails turn blue due to a lack of oxygen in your blood. If you have darker skin, cyanosis may be easier to see in your lips, gums, nails and around your eyes. The word cyanosis comes from the word cyan. Cyan is a blue-green color.

Detailed explanation-2: -Literally, acrocyanosis means bluish discoloration of the extremities due to decreased amount of oxygen delivered to the peripheral part. It is a persistent disorder without episodic triphasic color response. Acrocyanosis is usually painless.