Ethylenediaminetetraacetic acid (EDTA)
Potassium EDTA (ethylenediaminetetraacetic acid)
no additive
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.
edta- ppt tube
light blue
heprin
reflux
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Glucose studies use gray top tubes. The additive in grey tubes prevent glycolysis. Lactic acid test also uses a gray top.
seaweed
Non additive red top
Gray top tube