Table of Contents
- 1 What do the different Colour tops mean on blood tests?
- 2 What are the different color tubes for lab tests?
- 3 What is the yellow stuff in blood test tubes?
- 4 What is the difference between the purple and pink EDTA tube?
- 5 What color tube would you draw for hematology test?
- 6 What does light green tube test for?
What do the different Colour tops mean on blood tests?
The tests each bottle is used for are the same: the purple one is for cell count, the yellow one is for electrolytes, albumin and LDH, the grey one is for glucose, and blood culture bottles can be used for fluid cultures.
What are the different color tubes for lab tests?
Blood Collection Tubes
| Tube cap color | Additive | Common laboratory tests |
|---|---|---|
| Lavender or pink | Potassium EDTA | Hematology and blood bank |
| Gray | Sodium fluoride, and sodium or potassium oxalate | Glucose (especially when testing will be delayed), blood alcohol, lactic acid |
Why are there color differences in the test tube?
It follows the principle, which is most commonly known as the “order of draw.” Different tests and biochemical assays require varying types of sample collection tubes. The reason why tubes are color-coded is for practical and easy identification.
What is the gel in the blood tube?
After centrifugation, the inert acrylic gel at the bottom of the tube normally occupies the middle position between the cells (clot) and the serum, as its density is intermediate between theirs. The gel then serves as a barrier to diffusion, preventing contamination of the serum with cellular components.
What is the yellow stuff in blood test tubes?
Types of tubes
| Tube cap color or type | Additive |
|---|---|
| Tan | EDTA (chelator / anticoagulant) |
| Gray | Sodium fluoride (glycolysis inhibitor) Potassium oxalate (anticoagulant) |
| Yellow | Acid-citrate-dextrose A (anticoagulant) |
| Pearl (“white”) | Separating gel and (K2)EDTA |
What is the difference between the purple and pink EDTA tube?
What are the differences between the lavender stopper and the pink stopper BD Vacutainer K2EDTA Tubes? A. The differences are the types of closures and the labeling. The lavender stopper can either be rubber or a Hemogard™ closure on a plastic tube.
What color is a gel barrier tube?
Gel-barrier Tubes. Gel-barrier (mottled red/gray, gold, or cherry red-top) tubes contain clot activator and gel for separating serum from cells but include no anticoagulant.
What color is SST tube?
PHLEBOTOMY SERVICES
| STOPPER COLOR | CONTENTS | VOL. |
|---|---|---|
| Gold Top (Serum Separator, “SST”) | Contains separating gel and clot activator | 6.0 mL |
| Light Blue – Yellow Label on Tube | Thrombin | 2.0 mL |
| Green | Sodium heparin(100 USP Units) | 5.0 mL |
| Tan | K2 EDTA | 5.0 mL |
What color tube would you draw for hematology test?
Red-top tube: Contains no anticoagulant or preservative. Use: Serum or clotted whole blood. Serum must be separated from cells within 45 minutes to two hours depending on the test(s). Please refer to the specimen requirements for the test(s) of interest available in the Directory of Services.
What does light green tube test for?
Light green-top tube (lithium heparin) This tube contains lithium heparin and gel separator used for the collection of heparinized plasma for routine chemistry tests. NOTE: After the tube has been filled with blood, immediately invert the tube 8-10 times to mix and ensure adequate anticoagulation of the specimen.
What is the purple blood tube for?
The purple top tube provides blood for infectious disease tests and ascertaining important data such as ABO/Rh (blood type), as well as whether the blood is positive or negative for cytomegalovirus (CMV), HIV, hepatitis, and West Nile virus, to name a few.
What is the green blood tube used for?
Lithium Heparin (Green-Top Tube)*: This tube is used for the collection of heparinized plasma or whole blood for special tests. *Note: After the tube has been filled with blood, immediately invert the tube gently several times to prevent coagulation.