What is this test?
Test that shows what type of blood you carry (A, B, AB, and O) including the Rh factor. Knowing your blood type enables safe blood donation and transfusion.
 
Sample required
Blood.
 
Patient preparation
No specific patient preparation protocol is required. Inform your doctor if you are on any medications or have any underlying medical conditions or allergies before undergoing this test.
 
Turn-around time (How long does it take?)
3 hours.
 
Basis of the Test
Blood grouping detects the presence or absence of these antigens to determine a person’s ABO blood group and Rh type. Blood groups are based on the markers (specific carbohydrates or proteins) or antigens on the surface of red blood cells (RBCs). Two major antigens or surface identifiers on human RBCs are the A and B antigens. Another important surface antigen is called Rh. People whose red blood cells have A antigens are in blood group A, those with B antigens are group B, those with both A and B antigens are in group AB, and those who do not have either of these markers are in blood group O. If the Rh protein is present on the red blood cells, a person’s blood type is Rh+ (positive); if it is absent, the person’s blood is type Rh- (negative).