Which is the correct order for drawing blood?
Nowadays the order of blood draw established by the international guidelines is postulated to avoid cross-contamination between different additives contained in blood collection tubes, and it is as follows: blood culture bottle, non-additive tube, coagulation tube, clot activator, serum separator tube, sodium heparin.
What is the Aspt correct order of draw when using a butterfly?
A winged blood collection device (butterfly) can be used for collecting a specimen as well. If it is used for coagulation studies, a waste tube must be drawn first. The waste tube is drawn first to remove the air in the tubing of the winged collection device.
What order do you draw tubes?
The recommended order is as follows:
- Blood culture tubes.
- Sodium citrate tubes (e.g., blue-stopper)
- Serum tubes with or without clot activator, with or without gel separator (e.g., red-, gold-, speckled-stopper)
- Heparin tubes with or without gel (e.g., green-stopper)
- EDTA tubes (e.g., lavender-stopper)
Why is there an order of draw?
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.
When performing capillary draws what is the correct order of draw quizlet?
The correct order of draw would be: two light blue top tubes (one waste and one for PT which is a coagulation test), green top tube (for the Chem 7), and the lavender top tube (for the CBC).
Which of the following tubes should be drawn first?
Tubes for coagulation tests (light blue) are drawn first (unless blood cultures [yellow] have been ordered, which would then be first). This is followed by plain tubes (red) and then by other anticoagulant tubes.
What color tube should be drawn first?
NOTE: All tubes sterile. Standard order of draw: BLOOD CULTURES, royal blue, red, light blue, SST (Gold), green, tan, yellow, pink, pearl, lavender. 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.
Why do we follow order of draw?
Which blood culture do you draw first?
The blue (aerobic) blood culture bottle should be filled first, then the purple (anaerobic) bottle as the butterfly tubing may contain air. Air entering the purple bottle will impede the growth of anaerobic organisms.
What is SST in phlebotomy?
Serum separator tube (SST) contains a. gel at the bottom to separate blood cells. from serum on centrifugation.
What is the order of draw by tube color?
Standard order of draw: BLOOD CULTURES, royal blue, red, light blue, SST (Gold), green, tan, yellow, pink, pearl, lavender. 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.