What is a micro EDTA vacutainer?

What is a Micro EDTA Vacutainer?

A Micro EDTA vacutainer is a small-volume blood collection tube that contains EDTA (Ethylenediaminetetraacetic acid) as an anticoagulant. EDTA prevents blood from clotting by binding to calcium ions in the blood. The “micro” designation refers to its small capacity, typically ranging from 250 µL to 1 mL, making it ideal for pediatric, neonatal, or small animal blood sampling.

Key Features of Micro EDTA Vacutainer:

1. Small Volume Capacity:

   • Typically holds 0.25 mL to 1.0 mL of blood.

   • Suitable for low-volume sampling situations.

2. Pre-loaded with EDTA:

   • Contains a precise amount of K2EDTA or K3EDTA powder or liquid.

   • Prevents blood clotting for accurate hematological analysis.

3. Color-Coded Cap:

   • Lavender or purple cap identifies it as an EDTA tube.

   • Facilitates quick identification in clinical settings.

4. Sterile and Disposable:

   • Designed for single use to prevent cross-contamination.

5. Material:

   • Made of medical-grade plastic (often polypropylene or polyethylene).

   • Some versions are transparent for easy visibility of contents.

6. Cap Type:

   • Often features a snap-cap or screw cap for secure closure.

7. Vacuum or Non-vacuum Options:

   • May be vacuum-sealed or manual fill depending on the application.

Uses of Micro EDTA Vacutainer:

1. Hematological Testing:

   • Complete Blood Count (CBC).

   • Hemoglobin and Hematocrit.

   • White Blood Cell (WBC) and Red Blood Cell (RBC) counts.

2. Pediatric and Neonatal Use:

   • Ideal for collecting blood from newborns or infants with limited blood volume.

3. Veterinary Applications:

   • Common in blood sampling for small animals.

4. Point-of-Care Testing:

   • Useful in settings with limited lab infrastructure or for bedside testing.

5. Capillary Blood Collection:

   • Frequently used with heel prick or fingerstick samples.