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.
Typically, males have about 5.5 liters of blood and females 5 liters of blood. Blood is made of three specialized elements called erythrocytes (red blood cells), leukocytes (white blood cells) and platelets that are suspended in a complex liquid called plasma.