Phlebotomy (Day 2)
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antiseptic vs disinfectant
- antiseptic: used on biotics
- disinfectant: used on surfaces/instruments
PPT vs PST
- PPT: Plasma preparation tube - contains EDTA
- PST: Plasma separator tube - contains heparin
What is the most widely used anticoag for plasma and whole-blood chem tests? Why?
- Lithium heparin
- least interference w/ tests
What is the sodium citrate ratio and error %
alt name for household bleach
- 5.25% sodium hypochlorite
- *NOTE - CDC/HICPAC says this is preferred for surfaces and instruments
List needle gauges, types, and avg use
- 15-17: special needle/bag - donor and therapeutic phlebo
- 18: hypodermic - transfer needle (rarely used)
- 20: multisample hypodermic - large-volume tubes or large-volume syringes (sometimes used)
- 21: multisample hypodermic - standard venipuncture needle (normal)
- 22: multisample hypodermic - older children/adults w/ small veins
- 23: butterfly - children/infants/diff veins and hand veins of adults
most common antiseptic for blood cultures
- (alcohol in allergy cases)
Why are STAT chem tests performed in green instead of SST?
lithium heparin (Na heparin would fuck up results) is used because there is no "wait time" for coagulation when using plasma
What is SPS?
- sodium polyanethol sulfonate
- Used for cultures
- inhibits phagocytosis of bacteria
- reduces complement protein
- reduces certain antibiotic activity
What would you like to do?
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