Cyanosis of the fingertips and nail beds.
Cyanosis is a blue to purple coloration of the skin and mucous membranes which may happen because of reduced oxygen in the blood or when small blood vessels constrict (vasoconstriction) because of a medical problem, and not enough blood with oxygen can reach that area of the body.
Usually cyanosis is first seen in the fingertips, especially under the fingernails and also the lips. The longer the body goes without oxygen, the larger the area which becomes cyanotic. The extremities are affected by cyanosis first, they include; the fingertips and the lips and also the toes, tip of the nose and ear lobes.
References[change | change source]
- Lippincott Manual of Nursing Practice Series: Assessment. Lippincott Williams & Wilkins; 1 edition (2006) p.87 ISBN 1582559392