ABO Group and Rh Type Most Popular

The ABO Group and Rh Type test contains 1 test with 2 biomarkers.

ABO Group and Rh Type

Blood typing is used to determine an individual's blood group, to establish whether a person is blood group A, B, AB, or O and whether he or she is Rh positive or Rh negative.

The Different Blood Types

There are four major blood groups and eight different blood types. Doctors call this the ABO Blood Group System.

The groups are based on whether or not you have two specific antigens -- A and B:

  • Group A has the A antigen and B antibody.
  • Group B has the B antigen and the A antibody.
  • Group AB has A and B antigens but neither A nor B antibodies.
  • Group O doesn’t have A or B antigens but has both A and B antibodies.

There’s also a third kind of antigen called the Rh factor. You either have this antigen (meaning your blood type is “Rh+” or “positive”), or you don’t (meaning your blood type is “Rh-” or “negative”). So, from the four blood groups, there are eight blood types:

  • A positive or A negative
  • B positive or B negative
  • AB positive or AB negative
  • O positive or O negative

The following is a list of what is included in the item above. Click the test(s) below to view what biomarkers are measured along with an explanation of what the biomarker is measuring.

Also known as: ABO Grouping and Rh Typing, Blood Type, Type and Group

Abo Group

Rh Type

*Process times are an estimate and are not guaranteed. The lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.