What color tube is used for platelet testing?
What color tube is used for platelet testing?
Lavender-top (EDTA) tube.
What tube is used for platelet count?
Use order code PLTB to order the Platelet Count, Blue Top (Citrate) Tube. The Epic order code is LAB7882. This test is available 24 hours a day, 7 days a week. This test cannot be done on a citrate tube drawn for coagulation testing.
Why is EDTA the best anticoagulant for platelet count?
EDTA has been recommended as the anticoagulant of choice for hematological testing because it allows the best preservation of cellular components and morphology of blood cells. One rare drawback of EDTA as anticoagulant is spuriously low platelet count or pseudothrombocytopenia.
What anticoagulant is used to count platelets?
Evaluation of Hemostasis Platelet counts are usually performed using blood collected with EDTA as the anticoagulant. The presence of platelet clumps can result in erroneously low platelet counts.
How is a platelet count test performed?
Most platelet tests are done on a blood sample. During the test, a health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial.
What is the purpose of the EDTA present in purple top Vacutainer tubes?
EDTA acts as an anticoagulant, binding the calcium ions and interrupting the clotting of the blood sample.
What anticoagulant is preferred for platelet testing on the hematology analyzer?
Dipotassium EDTA is now the recommended anticoagulant for hematology by the International Council for Standardization in Haematology (ICSH) and the NCCLS. Dipotassium EDTA is recommended due to its good solubility and stable microhematocrit results. In some individuals, EDTA may cause inaccurate platelet results.
What is the preferred anticoagulant for coagulation studies in a blue top tube?
sodium citrate
Sample Collection for Coagulation Testing. 1. Collection Tube. Blood should be collected in a blue-top tube containing 3.2% buffered sodium citrate.
Can EDTA reduce platelets?
It inhibits clotting by removing or chelating calcium from the blood. EDTA most important advantage is that it does not distort blood cells, making it ideal for the most hematological tests. It is known to cause erroneous results of platelet counts by automated hematological analysers yielding low platelets counts.
Do platelet clumps seen in regular EDTA purple top sample exist?
Actually, we stop counting if platelet clumps seen in regular EDTA purple top sample. Instead, we would call the floor to collect a Sodium Citrate (blue top) sample in addition to the regularly collected EDTA top sample. You would use the newly collected EDTA sample to verify that platelet clumps indeed do exist.
How much anticoagulant do you put in a blue top tube?
LIGHT BLUE TOP TUBE – 2.7 ml draw and 1.8 ml draw Liquid 3.2% sodium citrate anticoagulant RED TOP TUBE – 4 ml draw Sprayed on clot activator GOLD TOP TUBE (SST) – 3.5 ml draw Sprayed on clot activator with gel for serum separation
How to count platelets using socium citrate (blue top) anticoagulant?
when you are using Socium Citrate (blue top) anticoagulant tube for counting platelet clumps appearing in the EDTA tube (purple top), you should have the floor draw both the blue and purple tops. Then you have to multiply the platelet count obtained from the blue top by 1.1 to derive the correct platelet count.
What are the different color tubes used for blood transfusion?
Light-blue top tubes (sodium citrate) Serum tubes (with or without clot activator) Green top tubes (sodium or lithium heparin) Lavender or pink top tubes (Potassium EDTA)
