Phlebotomy Equipment Flashcards
What is in the evacuated tube system?
- double-pointed needle and collection tube holder
- multi-sample needle
What is the most common gauge for evacuation system?
21-22 gauge
What is the evacuated tube?
vacutainer
- negative internal pressure
What are other venipuncture systems?
- needle and syringe systems
- butterfly system
- evacuated tube system
What is the butterfly system?
- winged infusion set
- reserved for small, fragile veins
What is the common needle for butterfly system?
25-26 gauge
What can smaller needles cause?
hemolysis
What is hemolysis?
bursting of RBC
What is the order of draw for venipuncture?
Stop - yellow top stopper
Light - light blue
Red - red
Stay - gold/tiger top (SST)
Put - PST (light green)
Green - dark green
Light - lavender
Go - gray
What does white cap mean?
sterile
What does light blue cap mean?
citrate
What does red cap mean?
serum
What does green tube mean?
heparin
What does purple cap mean?
EDTA
What does gray cap mean?
oxalate
What is yellow tube used for? What is the additive?
- SPS
- prevents clotting and stabilizes bacterial growth
- used for cultures on blood or body fluid
What is light blue tube for? How do you fill it correctly?
- coagulation testing
- must be completely full
What is PT/INR test for? (prothrombin time)
monitor results of coumadin/warfarin
What is PTT test for? (activated partial thromboplastin time)
monitors results of heparin (IV)
What is DVT?
deep vein thrombosis
What is PE?
pulmonary embolism
What are red-stoppered tubes for? How do they work?
- used for whole blood collection that is allowed to clot
- blood is centrifuged and serum is poured off after clotting
What are the additives for red-stoppered tubes?
- glass: no additive
- plastic: silica
How long does clotting take?
half an hour
