Platelet-rich plasma (PRP) is a fraction of blood plasma; its concentration of platelets is of great value in regenerative medicine as they are essential in accelerating healing and repairing tissue. DEAR DR. ROACH: I’m planning on getting platelet-rich plasma (PRP) for my knee (due to arthritis and years of previous steroid/gel injections) as well as my large toe joint (due to a bone spur removal ...

Context Explanation

Blood Basics Blood is a specialized body fluid. It has four main components: plasma, red blood cells, white blood cells, and platelets. The blood that runs through the veins, arteries, and capillaries is known as whole blood—a mixture of about 55% plasma and 45% blood cells. About 7% to 8% of your total body weight is blood.

Insight Material

An average-sized man has about 12 pints of blood in his body, and ...