Order of draw Flashcards
What test should be done first before any other one?
Blood Cultures or SPS
What test should be drawn after SPS/ blood cultures ?
Lt Blue
What test should be drawn after Lt Blue ?
Red
What test should be drawn after Red?
SST
What test should be drawn after SST ?
PST
What test should be drawn after PST ?
Green
What test should be drawn after Green ?
EDTA (Lavender top)
What test should be drawn after EDTA (Lavender top) ?
Oxlate (gray)
What does SPS stand for ?
Sodium polyanethole sulfonate
Why are SPS (blood cultures) collected first ?
Minimizes chance of microbial contamination
Why are coagulation tubes collected after blood cultures ?
because all other additives tubes affect coagulation tests
Why are glass non-additives collected after coagulation tubes ?
Prevents the contamination by additives in other tubes
Why are Plastic clot activator tubes collected after glass non-additives tubes ?
because silica particles activate clotting and affect coagulation tests (carry over of silica can be overridden by anticoagulant in them)
What is after you collect the plastic clot activator tubes ?
Serum-separator tubes {Gold top}
Why are Heparin tubes with gel/ plasma-separator collected after Serum-Separator tubes ?
Heparin affects coagulation tests and interferes in collection of serum specimens; it causes the least interference in tests other than coagulation tests
