Podcast
Questions and Answers
Which tube type is preferred for tests that specifically mention 'Green' in the list?
Which tube type is preferred for tests that specifically mention 'Green' in the list?
What is the correct mixing procedure for tubes with anticoagulants?
What is the correct mixing procedure for tubes with anticoagulants?
Which test requires only a urine sample?
Which test requires only a urine sample?
For which of these tests is the Lavender Top tube required?
For which of these tests is the Lavender Top tube required?
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Which statement about the Gold Top (SST) tube is true?
Which statement about the Gold Top (SST) tube is true?
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Which test does not require a Green, SST, or Plain Red tube?
Which test does not require a Green, SST, or Plain Red tube?
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What is indicated regarding the Gray Top tubes?
What is indicated regarding the Gray Top tubes?
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Which serum test can be done using a Green Top tube?
Which serum test can be done using a Green Top tube?
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Which collection tube is used for a Basic Metabolic Panel test?
Which collection tube is used for a Basic Metabolic Panel test?
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What color tube is required for a CBC test?
What color tube is required for a CBC test?
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To collect a sample for a Digoxin level, which tube should be used?
To collect a sample for a Digoxin level, which tube should be used?
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Which test requires a Blue collection tube?
Which test requires a Blue collection tube?
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For testing lithium levels, which collection tube is acceptable?
For testing lithium levels, which collection tube is acceptable?
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Which test is performed with a Lavender tube but not a Green tube?
Which test is performed with a Lavender tube but not a Green tube?
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Which of the following tests would require a Plain Red tube?
Which of the following tests would require a Plain Red tube?
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Which chemistry test does not require a Green, SST, or Plain Red tube?
Which chemistry test does not require a Green, SST, or Plain Red tube?
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For which test is it necessary to use a Blood Bank labeled tube?
For which test is it necessary to use a Blood Bank labeled tube?
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Which of the following is a special chemistry test that requires a Green, SST tube?
Which of the following is a special chemistry test that requires a Green, SST tube?
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Study Notes
Laboratory Tests Collection Tubes
- Chemistry tests use different colored tubes for blood collection, each specifying the appropriate collection tube for a specific test.
- Drug levels require specific tubes based on the drug being measured, for example, alcohol, acetaminophen, digoxin, and others.
- Special chemistry tests, like ferritin, free T4, folate, and HBSAG, also have their designated colored tubes (Green, SST, etc.).
- Serology tests (e.g., ANA, CRP, HCG) use specific tubes depending on the test.
- Hematology tests require lavender-topped tubes for CBC, WBC, Hgb, Hct, and Platelet counts. Sedimentation rate (ESR) uses lavender or black-topped tubes.
- Coagulation tests, such as PT & INR, APTT, and fibrinogen, use blue-topped tubes. D-dimer also uses a blue-topped tube.
- Blood bank tests (e.g., blood typing, crossmatching) use red-topped tubes.
- Molecular diagnostics tests, such as Factor II, Factor V, and Alpha 1-antitrypsin, use lavender tubes.
- Patients' samples for blood tests need special banding and documentation.
- Mixing instructions are specific for different tubes, to prevent clotting, such as mixing 10-12 times for anticoagulant tubes and 5-6 times for serum or clot activator tubes, to properly mix the additive with the blood.
Tube Types and Usage
- Green-topped tubes (PST - Plasma Separator Tube): are preferred if specified to avoid potential errors with blood mixing
- Serum Separator Tubes (SST): used for various tests
- Plain Red-topped tubes: used for serum collection
- Gold-topped tubes (SST): used for serum collection, along with clot activator.
- Lavender-topped tubes: general use for hematology
- Blue-topped tubes: used for coagulation tests
Factors Affecting Glucose Levels
- Gray-topped tubes: are specific to glucose level monitoring, preserving glucose levels, which can be helpful in areas with transportation challenges.
Important Notes
- The minimum blood volume required for certain tests may vary, so it's best to consult the lab.
- Proper mixing of the additive with blood sample in the tube is critical for accurate results.
- Specific banding is required for blood bank testing.
- Tubes should be correctly labeled, and all pertinent information should be documented on the request and the tube to avoid errors.
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Description
This quiz focuses on the specific colored tubes used for various laboratory tests in chemistry, hematology, coagulation, and serology. Learn which tube to use for tests such as blood collection, drug levels, and molecular diagnostics. Enhance your understanding of the importance of proper tube selection in laboratory procedures.
