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Author Question: What anticoagulant agent is used most often in the hematology laboratory? a. 3.2 Sodium citrate ... (Read 78 times)

mrsjacobs44

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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

Question 2

Which of the following would be an acceptable sample?
 
  a. CBC collected in a green top
  b. Coagulation tests on a hemolyzed sample
  c. CBC drawn on a nonfasting patient
  d. CBC drawn above an intravenous access site



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heyhey123

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Answer to Question 1

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.

Answer to Question 2

ANS: C
Fasting is not required to obtain a valid specimen for a CBC. Heparin is not the appropriate anticoagulant agent for a CBC. Coagulation tests should not be performed on a hemolyzed sample. The fluid in the intravenous line will contaminate a CBC drawn above an intravenous line, and all blood cell counts will be diluted and thus invalidly decreased.




mrsjacobs44

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Reply 2 on: Jun 25, 2018
Excellent


lcapri7

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Reply 3 on: Yesterday
:D TYSM

 

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