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.
1 Red. 2  are the most numerous blood cell, about 5,000,000 per microliter. 3  Red blood cells make up about 40% of our total blood volume, a measure called the hematocrit. 4  Their color is caused by hemoglobin, which accounts for nearly all of the red cell volume.latelets are the smallest of the three major types of blood cells. 1  are only about 20% of the diameter of red blood cells. 2  Red. 3  are the most numerous blood cell, about 5,000,000 per microliter. 4  are the largest of the blood cells but also the fewest.