Procedure for Using a Winged Blood Collection Device to Collect a Specimen for Coagulation Tests Show A light-blue top tube (a blood collection tube containing 3.2% sodium citrate) that will be used for coagulation testing must be filled to completion. Under-filling the tube changes the ratio of blood to anticoagulant. This can affect the accuracy of coagulation tests that are performed using this specimen. If a winged blood collection device (butterfly) is used to collect a light-blue top tube for coagulation studies, a waste tube should be drawn first. The waste tube must also be a light-blue top tube or a tube that contains no additives. This waste tube is drawn first to remove the air in the tubing of the winged collection device. Once blood flows through the tubing, the waste tube can be removed and discarded. The waste tube does not need to be completely filled. If the air is not displaced from the tubing into a waste tube, it will be drawn into the tube used for testing and cause a short-fill of the tube. Less volume of blood in the tube alters the required blood to anticoagulant ratio needed for coagulation studies. Which sample should be collected first if using a winged blood collection system?If a winged blood collection device (butterfly) is used to collect a light-blue top tube for coagulation studies, a waste tube should be drawn first.
What color tube should be collected first?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.
Which tube should be filled first in blood collection?The recommended order of draw for plastic collection tubes is:. First - blood culture bottle or tube (yellow or yellow-black top). Second - coagulation tube (light blue top). ... . Third - non-additive tube (red top). Last draw - additive tubes in this order:. What is the light blue tube used for in phlebotomy?These tubes contain the anticoagulant sodium citrate. They are used mostly for coagulation (clotting) studies. They must be completely filled to assure proper ratio of anticoagulant to blood.
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When using a winged blood collection set a light blue stopper tube should be collected first?
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