What is an EDTA Blood Vacuum Tube?
An EDTA Blood Vacuum Tube is a sterile, evacuated container specifically designed for the collection and preservation of whole blood samples. It is universally recognized in hospitals and laboratories across Nigeria by its lavender or purple-coded cap, which follows international ISO 6710 standards.
The tube contains Ethylenediaminetetraacetic Acid (EDTA), a powerful anticoagulant that works by binding calcium ions in the blood. This process prevents the blood from clotting while preserving the shape and integrity of blood cells for accurate diagnostic testing.
Common Uses in Nigerian Laboratories
This tube is the "gold standard" for hematological examinations. It is primarily used for:
- Full Blood Count (FBC) / Complete Blood Count (CBC): To analyze red cells, white cells, and platelets.
- ESR (Erythrocyte Sedimentation Rate): To detect inflammation in the body.
- Blood Grouping and Cross-matching: Essential for blood transfusions.
- HbA1c Testing: For monitoring long-term blood sugar levels in diabetic patients.
How to Use the EDTA Tube
For accurate results, the tube must be filled to the indicated draw line to ensure the correct ratio of blood to anticoagulant. Immediately after collection, the tube should be gently inverted 8 to 10 times. Do not shake the tube vigorously, as this can cause hemolysis (rupturing of blood cells).
Storage and Handling
- Store in a cool, dry place (ideally between 4°C and 25°C).
- Avoid exposure to direct sunlight.
- Ensure the vacuum is intact before use.
If you are a medical professional or laboratory owner in Nigeria, you can contact a GoMed pharmacist for bulk supply inquiries or technical guidance on blood collection consumables.