peripheral blood

Peripheral blood is the blood circulating throughout the body that can be drawn from veins, usually from a finger or arm. It contains various cell types, including red blood cells that carry oxygen, white blood cells that fight infections, and platelets that help with clotting. This blood transports nutrients, hormones, and waste products to and from tissues, supporting overall health and immune function. When doctors perform blood tests, they analyze peripheral blood to assess health, detect infections, or diagnose blood disorders. It is a vital component of the body's circulatory and immune systems.