Specimen Collection-Anticoagulants In Clinical Pathology Lab

Question 1

Concerning HEPARIN:

•It is available as _______ and ______
• It is available in ______ ( color) vacutainer tubes.
• It’s functions?(2)
•Lithium heparin is used mostly in chemistry lab tests except _____

Answer 1

•lithium heparin and sodium heparin
•in green capped vacutainer tubes;
•Heparin accelerates the action of antithrombin iii and preventing the formation of fibrin
• folate assay

Question 2

Concerning EDTA:

• It’s full meaning:
•Mostly used for ______ and _____
•Available in _____(color) vacutainer tubes.

Answer 2

•Ethylenediamine tetra-acetic acid
•haematology tests and for DNA studies
•lavender capped vacutainer tubes

Question 3

Concerning SODIUM FLUORIDE:

• It’s functions?(2)
• It is available in ______ vacutainer tubes

Answer 3

• Inhibits enolase enzyme in glycolysis.
It is used for collecting samples for glucose assay.
• grey capped vacutainer tubes

Question 4

Concerning SODIUM IODOACETATE:

• It’s function?

Answer 4

• inhibits glycolysis

Question 5

Concerning OXALATES:

• Different examples of oxalate.(3)
• It’s function?
• This is often mixed with _____ in _____(color) vacutainer tubes.

Answer 5

• Sodium/potassium/Lithium
• form insoluble complexes with calcium ions
• Fluoride, grey capped vacutainer tubes.

Question 6

Concerning SODIUM CITRATE:

• Functions?(2)
• Tubes are _____ capped vacutainer tubes

Answer 6

• converts calcium to non ionized form; used for coagulation profile testing.
• light blue

Question 7

Why is ORDER OF DRAW important?

Answer 7

To prevent contamination and additive carry over.

Question 8

Blood sample in syringe should be dispensed into _____, then _____ and then _____.

ORDER OF DRAW is as follows:

Answer 8

• STERILE TUBES, ANTICOAGULANT TUBES, SERUM TUBES
•1. Sterile tubes
2.Coagulation study tubes
3.EDTA tubes
4.Heparin tubes
5.Flouride oxalate tube
6.Serum sample tube