Questions and Answers
What tube is used for CBC?
What tube is used for fasting blood sugar (FBS)?
What tube is used for platelet count?
Which tube is used for Total Cholesterol, LDL, HDL, Triglycerides, and Organ panel?
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What tube is used for sickle cell advancement screening?
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What tube is used for serologic tests?
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What tube is used for potassium (K+)?
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What tube is used for electrolytes in serum?
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What tube is used for hematology tests?
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What tube is used for blood cultures?
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What tube is used for copper testing?
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What tube is used for lipid panel total cholesterol, LDL, HDL, lipase?
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What tube is used for sodium (Na+)?
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What tube is used for pro time and PT/INR tests?
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What tube is used for PTT?
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What tube is used for alcohol levels?
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What tube is used for arterial blood gas determination?
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What tube is used for blood serum chemistry?
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What tube is used for RBC testing?
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What tube is used for coagulation tests?
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______ is contained in the lavender top tubes.
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Sodium citrate is contained in the light blue top tubes.
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You need ______ inversions on the light blue tube.
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Study Notes
Tube Colors and Their Uses in Phlebotomy
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Lavender Tube: Used for CBC (Complete Blood Count), platelet count, sickle cell screening, HBA1C, whole blood samples, hematocrit, hemoglobin, and WBC (White Blood Cell) tests. Contains EDTA as an anticoagulant.
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Gray Tube: Utilized for fasting blood sugar (FBS), alcohol levels, glucose tolerance, and contains potassium oxalate and sodium fluoride as additives.
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Gold Tube: Employed for total cholesterol, LDL, HDL, triglycerides, organ panels, non-fasting blood glucose (NFBG), serum electrolytes, renal function tests, and blood serum chemistry. Also known as SST (Serum Separator Tube).
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Red Tube: Typically used for serologic tests, medication levels, and has no additive.
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Tiger Top Tube: Similar to the gold tube, it is also used for potassium, lipid panels, chloride, sodium, renal function tests, and blood serum chemistry.
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Light Blue Tube: Required for prothrombin time (PT), PT/INR tests, and PTT (Partial Thromboplastin Time). Contains sodium citrate as an anticoagulant and requires 3-4 inversions after collection.
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Royal Blue Tube: Designed for trace metal testing, such as copper and toxicology tests.
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Green Tube: Utilized for STAT electrolytes, arterial blood gas determination, and contains heparin as an anticoagulant.
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Yellow Tube: Used for blood cultures and microbiologic tests, with sterile additives indicated.
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Key Regulations: The "Order of Draw" is crucial in phlebotomy to prevent contamination—starting from yellow (sterile) to lavender, and ending with gray.
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SPS (Sodium Polyethanol Sulfonate): Present in the yellow sterile tube for blood culture specimens to prevent bacterial cell lysis.
Sample Preparation
- Blood samples collected in specific tubes require careful handling and proper inversion to ensure mixing, especially in anticoagulated tubes like light blue, which should be inverted 3-4 times.
This cheat sheet summarizes critical aspects of tube color coding in phlebotomy, aiding in the understanding and application of proper blood collection techniques.
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Description
This quiz explores the various tube colors used in phlebotomy and their specific applications. Test your knowledge on which tubes are suitable for different blood tests, such as the lavender, gray, gold, red, tiger top, and light blue tubes. Understand the additives and procedures involved in blood sample collection for accurate results.
