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Questions and Answers
What cap color tube is used for Coagulation Studies?
Which additive is present in a Red tube with no anticoagulant (glass) used for Chemistry?
What type of tube is indicated by a Gold (SST) cap color for Chemistry?
Gel separator, clot activator
The ___ cap color tube is used for Hematology, hemoglobin A1c testing.
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Which additive is found in a Gray tube for Blood alcohol testing?
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Study Notes
Order of Draw
- Blood Culture tube must be drawn first, using sterile technique, and then discarded.
- Light Blue tube is used for Coagulation Studies, containing Sodium Citrate, and must be inverted 3-4 times.
- Red tube is used for Chemistry, with no anticoagulant (glass) or Silicon coating (plastic), and must not be inverted (glass) or inverted 5 times (plastic).
- Red/Gray tube is used for Chemistry, containing Clot activator and gel separator, and must be inverted 5 times.
- Gold (SST) tube is used for Chemistry, containing Gel separator and clot activator, and must be inverted 5 times.
- Green tube is used for Chemistry, containing Heparin, and must be inverted 8 times.
- Lavender tube is used for Hematology and hemoglobin A1c, containing EDTA, and must be inverted 8 times.
- Gray tube is used for Blood alcohol and Glucose, containing Potassium oxalate and Sodium fluoride, and must be inverted 8-10 times.
- Gray tube must not be used after cleansing the site with alcohol.
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Description
Learn the correct order of blood draw for various laboratory tests, including blood culture, coagulation studies, and chemistry. Understand the specific techniques and requirements for each tube type.
