ABORh, RBC CPT: 86900

Expected Turnaround Time

Within 1 day

Specimen Requirements


Whole Blood EDTA


6 mL

Minimum Volume

3 mL


Pink top (EDTA)



Storage Instructions

Maintain specimen at room temperature.

Stability Requirements

Temperature Period
Room Temperature3 days
Refrigerated14 days
FrozenDo not freeze
Freeze/thaw/ cycles Do not freeze

Patient Information

To determine your ABO blood group and Rh type.

When you need a transfusion of blood or blood components; when you donate blood at a collection facility or donate an organ, tissue, or bone marrow for transplantation; before or during a woman’s pregnancy to determine the risk of Rh incompatibility with the fetus.

A sample of blood is drawn from a vein or from the tip of the finger (fingerstick). In newborns, blood from the umbilical cord or a small amount of blood from a heelstick may be used for testing.