Blood Type and Rh Factor
Purpose of the test:
- The test determines blood type by the ABO system (A, B, AB, O) and Rh factor (Rh), necessary for safe blood and blood component transfusion.
- Used to detect Rh incompatibility risk during pregnancy.
- Applied when preparing for surgical procedures, emergency medical care, and blood transfusion planning.
- Recommended for initial examinations, pregnancy preparation, surgeries, and any situations involving blood loss.
What the test assesses:
- Blood type (ABO) — determines blood type: A, B, AB, O.
- Rh factor (Rh) — shows presence of positive or negative D antigen.
- Provides information for preventing transfusion incompatibility and assessing
- Rh conflict risk.
Biomaterial: Venous blood
- Fasting submission (4-8 hours without food)
- Water intake is allowed
- Avoid alcohol, fatty and fried foods for 24 hours
Medications: if possible, avoid taking drugs affecting blood composition (anticoagulants, anti-inflammatory drugs, antibiotics) 24-48 hours before the test. Inform your doctor if taking medications.
Recommended for testing:
- Patients before blood or blood component transfusion.
- Women when planning and managing pregnancy.
- People before surgical procedures.
- All adults and children during initial examination.
- In emergency situations involving blood loss.
- Blood type A, B, AB, or O — indicates the ABO system
- Rh factor positive or negative — determines presence of D antigen
Which doctor to consult:
- General practitioner — for general assessment and referral as needed.
- Hematologist — when non-standard blood indicators are detected.
- Obstetrician-gynecologist — for pregnant women.
- Surgeon — before surgery or planned blood transfusion.
- Important: donor compatibility and Rh conflict prognosis are assessed by a physician.