The indirect Coombs' test is done on a sample of the liquid part of the blood. It detects antibodies that are present in the bloodstream and could bind to certain red blood cells and destroy them. A Coombs' test involves taking a sample of blood.
It is placed in the middle of the chest or thoracic cavity (middle mediastinum), posterior to the body of sternum and the second to sixth costal cartilages and anterior to the fifth to the eighth thoracic vertebrae.
Where is the heart located in the body exactly? A reader asked us recently: âWhere is the heart locatedâ¦is it on the left side, the right side or the middle of my chest?â Not surprisingly, most of us do not know the answer to that question.