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.
In humans, the heart is located in the chest cavity, behind the breastbone, between the lungs and above the diaphragm. The human heart is the organ responsible for pumping oxygen and blood around the body. Continue Reading.