Questions and Answers
Blood bank tests require the collection of which of the following?
For FUO, cultures should be collected one right after another from different sites.
True
The same methods for blood culture skin antisepsis for adults apply to pediatric patients unless the antiseptic is tincture or iodine.
True
To minimize the risk of contamination by skin flora, the collection sites require a ________________________________.
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When a test for _____ is ordered, the blood specimen must be sent for testing immediately or collected in a special stabilizing reagent.
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When a trace element test is ordered, it is best to draw it by itself if using a needle/tube assembly.
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Coagulation specimens drawn through VADs require a discard volume of blood that is ____ times the dead space volume of the tubing.
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A GTT patient is not allowed to__________________.
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__________ samples are preferred for paternity testing; however, buccal swabs are increasingly being used.
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Drug screening tests are typically performed on ________ rather than blood.
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Study Notes
Blood Banking and Specimen Collection
- Blood bank tests typically require lavender or pink top EDTA tubes for collection.
- For fever of unknown origin (FUO), two or three cultures should be collected consecutively from different sites to ensure accurate results.
Pediatric Considerations
- The same antiseptic methods for blood culture skin preparation used for adults can also apply to pediatric patients, except when using tincture or iodine as antiseptic.
Skin Antisepsis Techniques
- To reduce contamination risks from skin flora when collecting specimens, sites should undergo a 30 to 60 second friction scrub to effectively reach bacteria beneath dead skin cells.
RNA Testing
- Blood specimens for RNA tests must be sent for testing immediately or collected in a special stabilizing reagent to preserve RNA integrity.
Trace Element Testing
- For trace element tests, it is recommended to draw the specimen by itself using a needle and tube assembly to prevent contamination from other tests.
Coagulation Specimens
- Coagulation specimens drawn through vascular access devices (VADs) require discarding blood that is six times the dead space volume of the tubing, roughly 5 mL, to ensure accurate readings.
Glucose Tolerance Test (GTT) Protocol
- During a Glucose Tolerance Test (GTT), the patient must refrain from drinking beverages or chewing gum, as these activities can activate the digestive process and affect test results.
Paternity Testing Samples
- Blood samples are preferred for paternity testing; however, buccal swabs are increasingly utilized due to their convenience and effectiveness.
Drug Screening Preferences
- Drug screening tests are primarily conducted on urine rather than blood, as urine is more accessible for collection and can detect a wider variety of drugs and their metabolites over a longer period.
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Description
Test your knowledge on blood bank tests and procedures with this true/false quiz based on Chapter 11 of Phlebotomy Essentials. The quiz covers important concepts such as tube types and culture collection methods. Perfect for students looking to reinforce their understanding of phlebotomy practices.
