What test is collected in a light blue top tube?
coagulation
The U.S. Food and Drug Administration (FDA) is aware the U.S. is experiencing significant interruptions in the supply of sodium citrate blood specimen collection tubes, also known as light blue top tubes (hereafter “sodium citrate tubes”), used for coagulation (blood clotting) testing because of an increase in demand …
What is the light blue blood tube used for?
A light-blue top tube (containing 3.2% sodium citrate) that will be used for coagulation testing must be filled to completion. Please see the attached BD guides for instructions. Under-filling the tube changes the ratio of blood to anticoagulant additive.
What additives are in the light blue topped tubes?
Light blue top tube contains citrate as an additive, which is a reversible anticoagulant. This additive will dilute the blood and is used for platelet function and coagulation assays. Green top tubes contain sodium or lithium heparin and used in chemistry for plasma determination.
What chemical is in a blue top tube?
Sodium Citrate
2. Blue Top – Tube contains Sodium Citrate. Most often used for coagulation studies. Must be drawn prior to collection of serum tubes to prevent contamination with clot activator and interference with coagulation cascade.
Which blood tube is drawn first?
EDTA tubes
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.
How long is a blue top tube good for?
Specimen stability: Whole blood: 24 hours at room temperature. Plasma: -20°C for 30 days, -70°C for 6 months.
What color top tube is used for CBC?
The following tests may be drawn in the same LAVENDER (PURPLE) top tube: CBC, SED RATE (ESR), RETICULOCYTE Draw an extra LAVENDER for each (GLYCOHEMOGLOBIN and BNP). 9. GLUCOSE is always drawn in a GRAY top tube. No additional test may be drawn with this tube.
Why is there a shortage of blue top tubes?
The shortages of these tubes have occurred due to several recalls, along with unprecedented levels of demand for citrate products following surges in COVID-19 infection rates, COVID-19 vaccines, and treatment development.
What color tubes contain anticoagulants?
Pink-top tube (EDTA) This tube contains EDTA as an anticoagulant. These tubes are preferred for blood bank tests.
Are light blue tubes centrifuged?
Light Blue top tubes contain the anticoagulant buffered sodium citrate. Centrifugation provides plasma used for coagulation tests. See specific test requirements in the NLL Directory of Services. Gently invert the tube 3 to 4 times immediately after collection.
