Questions and Answers
What is the specimen type for the red tube?
What is the primary use of the gold or red/gray tube?
Most chemistry tests
What additive is found in the lavender tube?
What blood specimen is associated with the green tube?
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The yellow sterile tube is used for ______ culture.
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What does the gray tube test for?
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What is the important note about filling the light blue tube?
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The royal blue tube is used for clinical toxicology and trace metals.
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Match the following tube colors with their uses:
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What is the additive in the orange and yellow gray tube?
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Study Notes
Phlebotomy Tube Colors and Uses
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Red Tubes
- Used for chemistry, serology, and blood bank tests
- No additives; specimen is clotted whole blood or serum
- Requires 30 minutes for clotting
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Gold or Red/Gray Tubes
- Ideal for most chemistry tests
- Contains clot activators and thixotropic gel; specimen is serum
- Commonly referred to as serum separator or Tiger tops
-
Green Tubes
- Tests include stat chemistry, ammonia, electrolytes, and arterial blood gases (ABG)
- Contains heparin with sodium lithium or ammonium ion; specimen is plasma
-
Light Green Tubes
- Specifically for stat potassium tests
- Contains heparin and thixotropic gel; specimen is plasma
- Also known as plasma separator tubes
-
Orange and Yellow Gray Tubes
- Used for stat chemistry tests
- Contains thrombin; specimen is serum
- Clotting time is 5 minutes; suitable for anticoagulant therapy
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Lavender Tubes
- Primarily for hematology tests
- Contains EDTA; specimen is whole blood
- If powdered EDTA is used, tap the tube before drawing blood and fill 2/3 full
-
Black Tubes
- Used for sedimentation rate tests
- Contains sodium citrate; specimen is whole blood
- Must be filled completely to maintain a 4:1 ratio of blood to citrate
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Light Blue Tubes
- Designed for coagulation tests
- Contains sodium citrate; specimen is plasma
- Fill completely to maintain a 9:1 ratio of blood to sodium citrate
-
Gray Tubes
- Used for fasting blood sugar, glucose, alcohol levels, and lactic acid tests
- Contains antiglycolytic agent and heparin; specimen is plasma
-
Royal Blue Tubes
- Meant for toxicology, trace metals, and nutrients testing
- Can contain heparin, EDTA, or no additives; specimen is plasma or serum
- These tubes are specially clean to prevent contamination
-
Tan Tubes
- Specific for lead analysis
- Contains heparin; specimen is plasma
- Formulated to contain less than 0.1 micrograms of lead
-
Yellow Sterile Tubes
- Used for blood culture tests
- Contains SPS; specimen is whole blood
- Designed to recover microorganisms causing blood infections
-
Yellow Non-Sterile Tubes
- Tests for human leukocyte antigen and paternity testing
- Contains acid citrate dextrose; specimen is whole blood
- Dextrose preserves erythrocytes and citrate acts as an anticoagulant
-
Pink Tubes
- Designed for antibody screening and compatibility tests
- Contains EDTA; specimen is serum
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Description
This quiz consists of flashcards detailing different phlebotomy tube colors, their tests, additives, and specimen requirements. Learn about the significance of each color-coded tube in phlebotomy procedures to enhance your understanding of best practices in blood collection.
