What is the correct order of draw in phlebotomy?
ORDER OF DRAW If just a routine coagulation assay is the only test ordered, then a single light blue top tube may be drawn. If there is a concern regarding contamination by tissue fluids or thromboplastins, then one may draw a non-additive tube first, and then the light blue top tube.
Which tube should be first in order to draw in phlebotomy?
1. Collect citrate tube (blue top) last, after 20mL of blood has been withdrawn for other testing, or as waste. Just prior to drawing the blue top tube as the last tube, draw 1mL into a discard blue top tube to prevent cross contamination from the additive of previously drawn tubes. 2.
What is the order of tube collection in phlebotomy?
This is known as the Order of Draw. Blood Culture Tubes or Vials. Coagulation Tubes (Blue-Top Tubes) Serum Tubes without Clot Activator or Gel (Red-Top tubes) Serum Tubes with Clot Activator or Gel (Gold or Tiger Top Tubes)
What is the correct order of draw tubes only?
This standard recommends that EDTA tubes be drawn first to ensure good quality specimen, followed by other additive tubes and finally, serum specimen tubes.
Why is the order of draw important in phlebotomy?
The order of draw is recommended for both glass and plastic venous collections tubes when drawing multiple specimens for medical laboratory testing during a single venipuncture. The purpose is to avoid possible test result error due to additive carryover. All additive tubes should be filled to their stated volumes.
Why is the order of draw important?
Order of draw is essential in avoiding cross contamination from additives of one tube to the next. Cross contamination, depending on the tests ordered, could cause seriously erroneous results, improper patient treatment and possibly death.
What determines the order of draw?
The order of draw is based on CLSI Procedures and Devices for the Collection of Capillary Blood Specimens; Approved Standard – Sixth Edition, September 2008. This standard recommends that EDTA tubes be drawn first to ensure good quality specimen, followed by other additive tubes and finally, serum specimen tubes.
Why does the order of draw matter?
What to do if you can’t find a vein to draw blood?
If the venipuncture proves difficult because of a hard-to-find vein, pre-warming the antecubital area or rotating the wrist might help distend the vein and make it easier to find. If dehydration might be the cause, sometimes phlebotomists can ask the patient to drink water and return later to do the draw.
