Sample collection for trace element can be used after that.Ī non-additive tube (plain tube) can be drawn before coagulation studies, especially when using a butterfly needle, to allow for dead space in the tubing. Download your finished form and share it as you needed.
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#ORDER OF DRAW HOW TO#
Thus the order of draw follows the broad principles of: filling up the “clean” blood culture tubes first, followed by filling of coagulation tubes (for accurate analysis of the coagulation time), then non-additive serum tube or serum separator tube, followed by lithium/sodium heparin, then EDTA tubes, and then sodium fluoride tube. How to Edit and draw up Printable Order Of Draw Chart Online. Sodium EDTA contamination resulting in low calcium and high sodium). If a coag tube (light blue) is the only tube or the first tube to be drawn, a 5 mL discard tube must be drawn first. Cross-contamination of tube additives resulting in spurious results (e.g. Standard order of draw: BLOOD CULTURES, royal blue, red, light blue, SST (Gold), green, tan, yellow, pink, pearl, lavender.Inadvertent contamination of the sample through handling- (In other words, if you are taking a blood culture, if you stick your needle in a dirty EDTA tube before you fill up the culture tubes, you may pick up the bacteria in the EDTA tube and get a contaminated sample).The order of draw is important because the act of filling itself can sometimes affect the blood sample through: Order of draw refers to the sequence with which one fills the blood tubes, either through the needle holder or through the syringe.
It is important to fill the blood tubes in a fixed order of draw (whether you are using the vacutainer system or syringe) to reduce the risk of tube additive contamination. When performing blood collection that requires a number of different blood specimens to be collected, it is important to follow the.
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