About this test
Blood grouping tells you your ABO group (A, B, AB or O) and your Rh type (positive or negative). It is needed before blood transfusion, during pregnancy care, before surgery and for medical records.
Why it is done
- Before a blood transfusion or surgery.
- During pregnancy, to check Rh compatibility.
- For medical records, blood donation and emergencies.
Preparation
No special preparation is needed.
This information is general and is not medical advice. Please speak to your doctor about your results and treatment.