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jennwatson05 jennwatson05
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6 years ago
What anticoagulant agent is used most often in the hematology laboratory?
 
  a. 3.2 Sodium citrate in the purple top
  b. EDTA in the purple top
  c. 3.2 Sodium citrate in the blue top
  d. Heparin in the green top
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wrote...
6 years ago
ANS: B
EDTA is the anticoagulant agent of choice for routine hematology testing; it is found in the purple top tube. For routine coagulation testing, 3.2 sodium citrate in the blue top is used, whereas heparin in the green top tube is used for some special tests, primarily in clinical chemistry.
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