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45 Cards in this Set
- Front
- Back
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What are red top tubes also known as?
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Plain tubes.
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What kind of anticoagulant do red top tubes use?
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None
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What do red top tubes have in them
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They may be coated with silicone.
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What are red tops used for?
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Hematology and serology.
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What are purple top tubes also known as?
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EDTA tubes.
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What are purple tubes used for?
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Hematology that requires whole blood.
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What do purple tubes have in them?
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EDTA
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How do purple tubes prevent clotting.
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EDTA binds Calcium - this is why they are never used for chemistry.
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Are purple top tubes inverted at collection?
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Yes, 8 times.
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What are green top tubes used for?
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Chemistry that uses plasma or heparinized whole blood.
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What are green top tubes never used for?
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Hematology.
The heparin does not preserve cell morphology well and can clump the WBCs |
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What do green top tubes have in them?
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Heparin - either Li, Na or NH4
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Do green top tubes have silicone?
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No
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What MIGHT a green top tube have within it?
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A gel separator.
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Are green top tubes inverted at collection?
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Yes, 8 times.
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What are grey top tubes used for?
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Either ACT if it is a silacious earth
Or Glucose determination if it is Sodium Fluoride. |
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What do grey top tubes have in them?
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Either siliceous earth or sodium fluoride.
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What color tube has nothing in it?
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Red
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What color tube has EDTA in it?
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Purple
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What color tube has heparin in it?
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Green.
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What color tube would be used for serum?
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Red or red and black
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What color tube would be used for chemistry?
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Red top (serum)
Green top |
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What color tube would be used for whole blood hematology?
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Purple
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What color tube would be used for activated clotting time?
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Grey
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What color tube would be used for Glucose determination?
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Grey with siliceous earth
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What are black and red tubes used for?
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Serum
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What might red and black tubes have in them?
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Gel seperator
Silicone Silica |
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What kinds of studies would a yellow tube be used for?
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Blood banking
DNA Whole blood microbiology |
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What do yellow top tubes have in them?
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Either Acid citrate dextrose
Or Sodium Polyantholesulfonate |
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What color tube would be used for blood banking?
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Yellow (Acid citrate dextrose)
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What color tube would be used for DNA testing?
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Yellow (acid citrate dextrose)
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What color tube would be used for whole blood microbiology?
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Yellow (sodium polyantholesulfonate)
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What do blue top tubes have in them?
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Sodium citrate
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What are blue top tubes used for?
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Coagulation
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What tube would be used for coagulation studies?
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Blue
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What silica used for?
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To enhance clotting
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What is silicone used for?
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To protect platelets from the glass of the tube
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What are three FORMS of anticoagulants?
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Liquid, powder, or beads.
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What are the disadvantages of powdered anticoagulants?
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They can be more difficult to suspend with blood.
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What is an advantage of having liquid anticoagulant in a vaccutainer?
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They are mixed more readily.
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What should be done prior to blood collection when using a vaccutainer that as liquid anticoagulant?
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The tube should be inverted so that the anticoagulant is coated.
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What is an advantage in using beaded anticoagulants?
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There is more surface area so the anticoagulant is much quicker to mix with the blood
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What are some advantages when trying to obtain serum and using a serum separator tube?
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The serum separator is quicker because it contains silica and there is less chance of cellular contamination with a serum separator tube.
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What should you do prior to blood collection when using a tube with a powdered anticoagulant?
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Flick the tube to break up the powder.
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What is the order of tubes to be used if you need more than one kind of tube?
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First is yellow (microbiology)
Then red top (no additives) Then blue (coagulation) Then others. (with additives) |
