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Blood Test
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Know Your Blood Type with This Test

Blood typing is a test method that determines which type of blood group you possess. This blood test is performed so that you can safely donate your blood or receive a blood transfusion. This blood type test also enables you to see whether you have a substance called Rh factor on the surface of your red blood cells (RBC) or not. If you receive blood that is not compatible with your blood group, then this could trigger some serious, life-threatening issues.

Blood Test

 

The cost of the blood group test is Rs. 50-Rs.100. The price may vary depending on your location.

Test Summary

Is Also known as The Blood typing test, blood group test, Rh factor test
Test Type Blood
Blood typing test includes Determining the blood group of the person   
Preparation No special preparation is required
Reporting Within 24 hrs
Test price The cost of blood group test is between Rs. 50 – Rs. 100 but it may vary from state to state and lab to lab
Also included in Health Insurance Plans
Related tests Complete blood count, blood glucose test

 

The Different Blood Types

This blood type test decides what kind of antigens your red blood cells have on the surface. Antigens are components that help your body distinguish between its own cells and foreign particles.

The ABO blood typing system groups can be divided into four categories

  • Type A has the A antigen
  • Type B has the B antigen
  • Type AB has both A and B antigens.
  • Type O has neither A nor B antigens.

 

If you receive blood with antigens that you don’t have, then your body will produce antibodies against it. But some people may receive blood that isn’t their blood type.

  • O: Since these blood people have no antigens in their blood, hence they can donate blood to anyone. But they will receive only blood from other type O individuals.
  • A: People with this blood group can donate to other “A group” individuals and type AB individuals. They will receive blood only from “A group” individuals and type O individuals.
  • B: People with type B can donate blood to other B individuals and AB individuals. But they will receive blood only from type B individuals and type O individuals.
  • AB: This blood type person can give blood only to other AB individuals, but may receive blood from any type.

 

Blood Types can further be Divided by the Rh Factor

Rh-Positive: People who have Rh-positive blood possess Rh antigens on the surface of their red blood cells. These people may receive Rh-positive or Rh-negative blood.

Rh-Negative: People who have Rh-negative blood don’t possess Rh antigens. These people only receive blood from Rh-negative individuals.

So, there are eight possible types: O-positive, O-negative, A-positive, A-negative, B-positive, B-negative, AB-positive, and AB-negative.

Why is Blood Typing Done?

Blood typing is mandatory when a person wants to donate his/her blood or needs a blood transfusion. A blood typing test is the most convenient and easy test to ensure that you will receive the right kind of blood during surgery or after an injury. Incompatible blood may cause some serious complications to patients.

Blood typing is imperative for pregnant women. If the mother is Rh-negative and the father is Rh-positive, then the baby will be Rh-positive. In this scenario, the mother should receive a drug called RhoGAM. This drug will prevent her body from producing antibodies that will kill the baby’s blood cells. 

The Risks of Blood Typing

A blood typing test carries very minimal risks, including

  • Bleeding under the skin (hematoma)
  • Fainting
  • Infection at the ruptured site
  • Excessive bleeding (very rare)

 

How to Prepare for Blood Typing?

No special preparation is required for this test. You just need to visit a nearby hospital or diagnostic center.

How Blood Typing is Performed?

  • Once you reach the lab or hospital, a nurse or technician will clean your skin with an antiseptic to prevent infection
  • Then, the technician/nurse will tie a band around your arm to make your veins more visible.
  • By using a needle, he/she will collect the blood sample from your arm or hand.
  • After that, a bandage will be placed over the puncture site

 

The Test Procedure

To determine your blood group, the pathologist will mix your blood sample with antibodies that attack types A and B blood to see how it reacts. If your blood cells form a cluster while mixing with antibodies against type “A” blood, for example, then you have type B blood. Then, your blood sample will be mixed with an anti-Rh serum. If your blood cells clump together against the anti-Rh serum, then you have Rh-positive blood.

FAQs

When is a blood typing test required?

This test is mandatory if you are going for a transfusion or planning to donate your blood. This test is also necessary under the following conditions.

      1. Severe anemia and conditions causing anemia such as sickle cell disease and thalassemia
      2. Excessive bleeding during or after surgery
      3. Injury or trauma
      4. Excessive blood loss
      5. Cancer and the effects of chemotherapy

Who are universal blood donors and recipients?

Universal blood donors possess type O, Rh-negative blood. On the other hand, universal recipients have type AB, Rh-positive blood. They recognize A, B and Rh antigens as “self” and can receive red blood cells of any ABO or Rh type without causing any risk.

Besides ABO and Rh, what are other types of red blood cell antigens?

Some other RBC blood group antigens are Kell, Kidd, Duffy, and other Rh antigens. The body does not create antibodies to these antigens unless it is contacted to these antigens through blood transfusion or during pregnancy.

How long does a blood typing test take?

Conventional blood tests usually determine your blood group within 10 to 20 minutes.

What are the three rarest blood types?

1. AB negative: only 0.6% of people have this blood group
2. B negative: Only 1.5 % of the US population has this blood group
3. AB positive: Only 3.4 % of the USA population has this blood group

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