Minor chest injury. You may have chest wall pain after a less serious injury. This pain can occur with movement of a shoulder, an arm, the rib cage, or the trunk of the body. Even a minor injury can cause chest pain for days after the injury.
Quick Answer. A unit of blood is equivalent to approximately 1 pint or 450 milliliters, according to the Canadian Blood Services website. The average patient requires around 4.6 units of blood. Continue Reading.
Leukocytes: The cellular components of blood include erythrocytes (red blood cells), leukocytes (white blood cells), and platelets. Normal human blood contains 4.8 - 5.2 million erythrocytes/ml and 4000 - 10,000 leukocytes/ml.