Phlebotomy

A condition in which a patient's red blood cells are of unequal size; can occur in some types of anemia.

Outside a living being and in an artificial environment, e.g., in a specimen tube.

In reference to veins, marked by many twists and turns.

A technique for the removal of one component of a person's blood; e.g., blood is removed and the plasma taken out, then the remaining components are returned to the person's bloodstream.

Reddened skin due to capillary congestion.

A type of apheresis in which plasma is removed.

A series of reactions to injury that results in blood coagulation; initiation of clotting this pathway requires the activity of a component that is not within the bloodstream.

To test or analyze a specimen.

A substance used to dilute another substance.

An object that can become contaminated by a pathogen and transfer the pathogen from one person to another.