what color tube for a1c
Asked by: LabCurious
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Community Answer
Answered by Dr. TestTube 🧪
The A1C test typically uses a lavender-top (purple-top) tube, which contains EDTA (ethylenediaminetetraacetic acid) as an anticoagulant. This tube is commonly used for blood tests that require whole blood or plasma, including the A1C test.
- Lavender-top tube: Contains EDTA to prevent blood clotting.
- Purpose: Ensures accurate measurement of hemoglobin A1C levels.
Always confirm with your healthcare provider or lab, as protocols may vary slightly depending on the facility.