WebDownload Guide. There are four major blood groups determined by the presence or absence of two antigens, A and B, on the surface of red blood cells. In addition to the A … WebA blood test is done to find out the blood type before a blood transfusion, major surgery or having a baby. This is because it is very dangerous if you are given the wrong blood type. If someone receives blood with the wrong sort of chemicals, the body’s immune system could attack it.

Blood groups - NHS

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How can you tell what blood type you are without a blood test?

WebMay 11, 2024 · If you want to find out your blood type, you may not want to set up an appointment at your doctor’s office or a lab and have to wait days for the results. … WebApr 5, 2024 · Blood typing is a test that determines a person’s blood type. The test is essential if you need a blood transfusion or are planning to donate blood.. Not all blood types are compatible, so it ... WebApr 11, 2024 · Blood drawNext time you go in to get your blood drawn, ask to know your blood type. If you’ve had blood drawn in the past, you can call the lab to see if they … the rothenberg law firm philadelphia