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A red tube is a zero additive tube, when testing for Lupus we need whole blood, so that means an anticoagulant is needed a. EDTA is in Lavender or Pink Hematology tubes and is used for ANA tests.

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8y ago
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16y ago

Green or Red gel tube!

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11y ago

purple top

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Anonymous

Lvl 1
4y ago

pink

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Q: What color is the tube that blood is drawn in for troponin levels?
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