Phlebotomy Order of Draw

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Questions and Answers

What cap color tube is used for Coagulation Studies?

Gold (SST)
Light Blue (correct)
Green
Red

Which additive is present in a Red tube with no anticoagulant (glass) used for Chemistry?

Clot activator
Heparin
Silicon coating (correct)
Sodium Citrate

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.

<p>Lavender</p> Signup and view all the answers

Which additive is found in a Gray tube for Blood alcohol testing?

<p>Potassium oxalate (D)</p> Signup and view all the answers

Flashcards

Coagulation Studies Tube Color

Light Blue tubes are used for coagulation studies.

Red Tube Chemistry Additive

A red tube, without anticoagulants, is coated with silicon for chemistry tests.

Gold Tube Chemistry Function

Gold-topped tubes (SST) contain a gel separator and clot activator for chemistry, separating serum from cells.

Hematology/A1c Tube Color

Lavender-topped tubes are used for hematology and hemoglobin A1c tests.

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Gray Tube Additive

Gray tubes contain potassium oxalate 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.