Questions and Answers
What is the fasting specimen for a GTT typically collected within?
30 minutes.
Which tube additive is preferred for the collection of blood culture specimens?
Sodium polyanethol sulfate.
TDM (Therapeutic Drug Monitoring) trough concentration may be defined as the _______________.
Lowest concentration of the drug during a dosing interval.
When the fasting specimen is drawn at 6:15 AM, when will the 2-hour specimen be collected if the glucose drink is finished at 6:30 AM?
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A BT using a standard template device may be performed on the ________ surface of the arm.
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Withdrawing a unit of blood from a patient for therapeutic purposes is used as a treatment for?
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During a GTT, drinking water is acceptable.
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A stool specimen is needed for the ______ test.
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What is the purpose of the BT test?
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What is autologous donation performed to avoid?
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GTT is performed to evaluate the production of _______ in the pancreas.
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Prior to performing a test on a POCT instrument, which of the following should the phlebotomist be able to do?
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Before performing a BT, the phlebotomist should ask the patient about?
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Which of the following procedures is required for a BC using a Chloroprep kit?
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Blood bank specimens require all the following ID except?
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The Hemocue Plasma/Low Hemoglobin instrument is used to indicate?
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Peak and trough specimens are collected for?
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When collecting BC specimens, what is one of the most frequent errors made?
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Which of the following tests require chain of custody documentation when collected?
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Which of the following POC tests is used to monitor warfarin therapy?
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Which of the following will prolong the bleeding time test results?
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What does hyperkalemia mean?
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Postprandial refers to what?
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When collecting a blood alcohol specimen for forensic purposes, how can the venipuncture site be cleaned?
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The i-STAT instrument measures all of the following except?
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Blood levels of this specific analyte begin to rise within 4 hours of an MI.
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What type of specimen is needed for a guaiac test?
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Which test may require chain of custody documentation when the specimen is collected?
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Removing a unit of blood from a patient and not replacing it is treatment for?
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What test must have a 9:1 ratio of blood to anticoagulant in the tube?
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Which specimen is collected in a trace-element-free tube?
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Common chemistry tests performed by POCT instruments include?
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Which of the following is a test that measures Packed Cell Volume?
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Study Notes
Blood Specimen Collection Techniques
- Fasting specimen for Glucose Tolerance Test (GTT) drawn at 6:15 am; glucose drink completed by 6:30 am; subsequent specimens collected at intervals of 1, 2, and 3 hours.
- Preferred additive for blood culture specimens is Sodium polyanethol sulfate.
- Blood culture collection requires cleansing bottle tops with isopropyl alcohol.
- Venipuncture site can be cleaned with benzalkonium chloride for blood alcohol specimens needed for forensic purposes.
Therapeutic Drug Monitoring (TDM)
- TDM trough concentration defined as the lowest concentration of the drug during a dosing interval.
- Peak and trough specimens are essential for evaluating therapeutic drug levels.
- Prothrombin Time (PT) is a POC test used to monitor warfarin therapy.
Laboratory Tests
- Glucose Tolerance Test (GTT) evaluates insulin production in the pancreas.
- Guaiac test requires stool specimens and is utilized for detecting blood in feces.
- Bleeding Time (BT) test detects platelet function disorders; prolonged by aspirin.
- Hemocue instruments help detect hemolyzed red cells and measure hemoglobin.
- Chain of custody documentation is required for tests like paternity and drug screenings.
Patient Treatments and Conditions
- Removing a unit of blood for therapeutic purposes is a treatment for polycythemia.
- Hyperkalemia refers to an increased level of potassium in the blood.
- Postprandial indicates the time period after eating.
Specimen Handling and Testing Protocols
- Specimens for the Protime test must maintain a 9:1 ratio of blood to anticoagulant in the tube.
- Trace element-free tubes are necessary for lead testing.
- Common chemistry tests performed by POC instruments include sodium (Na) and potassium (K).
- Blood bank specimen identification does not necessitate room and bed numbers.
General Procedures and Best Practices
- Phlebotomists should be competent in operating POCT instruments, maintain them properly, and understand quality assurance protocols.
- Patients should be questioned about recent aspirin ingestion prior to performing the bleeding time test.
- One frequent error in blood culture specimen collection is improper cleansing of the site.
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Description
Test your knowledge with these flashcards covering key terms and definitions from Chapter 11 in medical terminology. Focus on topics such as glucose tolerance tests and blood culture specimen collection. Perfect for students preparing for exams in the medical field.
