12-04 L2 Lab aspects coagulation Flashcards

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1
Q

Lab testing mixing studies

what is seen with

  • immediate acting
  • Delayed acting
A
  • immediate acting: lupus anticoagulants
  • delayed acting: factor inhibitors
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2
Q

What does thombin time do?

A

converts fibrinogne to fibrin (plasma + thrombin + Ca2+)

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3
Q

What does reptilase time do?

what is it not prolonged by?

A
  • converts fibrinogen to fibrin
  • (plasma + repliatase):
  • not prolonged by heprain
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4
Q

Russel viper venom

A
  • activates factor X directly
  • (plasma + RVV + PL + Ca2+
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5
Q

Echis carinatus time

A
  • activates prothrombin directly
  • (even if coumadinized)
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