A Phlebotomist is expected to be able to make correct incisions on a patient at all times without fail. How ready are you for the exams to be Questions: 17 Attempts: Last updated: Jul 23, Contraction, Relaxation. Contraction, Restless. Relaxation, Contraction. Relaxation, Corrupt.
Study tips from various websites, guides, Phlebotomy Exam review, and practice tests. The information on this quiz has been repeated over and over again from the resources I used. Questions: 6 Attempts: Last updated: Nov 22, Tubes with red-colored stoppers are used for serology and immunohematology. Plastic tubes need to be inverted to mix the blood with the coagulant. It usually takes 30 minutes for clotting to occur. Serology is done to check infectious mononucleosis, rheumatoid arthritis, syphilis, rubella titer, strep testing, pregnancy test, cold agglutinins, haptoglobin and C-reactive protein.
Some of the requested components include packed red blood cells, platelets, cryoprecipitate and fresh frozen plasma. Phlebotomy tubes with green top contain sodium herapin, lithium herapin and ammonium herapin, all of which are coated in the inside of the tube.
The herapin anticoagulant activates antithrombins that block the coagulation cascade and produce a plasma sample or whole blood. The same tubes are used for clinical chemistry and STAT chemistry tests.
They contain a gel that separates plasma from the cells when centrifuged, and are used for a wide range of testing. Serum separator tubes make an acceptable substitute for PST. Tubes with purple or lavender-colored stoppers contain EDTA ethylenediaminetetraacetic acid additive that binds calcium ions, effectively blocking coagulation cascade. Clinical laboratories use these to test for whole blood.
The former is used to test whole blood in molecular diagnostics. EDTA tubes are used in direct sampling analyzers without the need to open them. For up to 24 hours, erythrocytes, white blood cells and platelets remain stable in blood anticoagulated with EDTA, but blood smears must be prepared 3 hours after specimen is collected. Routine hematology tests that use EDTA tubes include hemoglobin, hematocrit, white blood cell, red blood cell, and platelet count, reticulocyte count, eosinophil count, body fluid counts, sickle cell test, and erythrocyte sedimentation rate.
These are often used for laboratory procedures where glycolytic inhibition of specimen is needed. Although red top tube can be used for a similar procedure, gray top tubes are preferred when there is a delay in having the glucose level tested. For adequate mixing of blood and additive, the tube must be inverted 4 to 5 times after specimen is collected.
Gel separates serum from cells. Chemistry, serology, immunology Green Sodium or lithium heparin with or without gel Prevents clotting by inhibiting thrombin and thromboplastin Stat and routine chemistry Lavender or pink Potassium EDTA Prevents clotting by binding calcium Hematology and blood bank Gray Sodium fluoride, and sodium or potassium oxalate Fluoride inhibits glycolysis, and oxalate prevents clotting by precipitating calcium.
Glucose especially when testing will be delayed , blood alcohol, lactic acid. Blood Collection Tubes. How to Subscribe.
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