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Quick Question Archives

  • What approach do your facility's nurses use to reduce specimen hemolysis at the time they are starting IVs? - 79 votes - open
  • How do you manage hemostasis specimens with visible hemolysis? - 96 votes - open
  • How does your laboratory measure factor inhibitors? - 106 votes - open
  • How many normal subject specimens do you collect to establish a PT and PTT reference interval? - 225 votes - closed
  • What PTT value initiates a PTT mixing study in your laboratory? - 157 votes - closed
  • When performing PTT mixing studies using normal control plasma (NP), what criterion do you use to define correction? - 204 votes - open
  • What platelet function test do you use for platelet function disorders and/or for aspirin and clopidogrel efficacy? - 68 votes - closed
  • What is your policy for managing overfilled coagulation specimen tubes? - 170 votes - closed
  • Does your laboratory perform follow-up PTT mixing studies 24/7? - 89 votes - closed
  • Here is a reprise to a recent Quick Question with updates. What assay do you use to measure dabigatran (Pradaxa)? - 13 votes - closed
  • The new oral anticoagulants are being used more and more. How do you plan to measure dabigatran (Pradaxa) levels? - 50 votes - closed
  • Surgeons typically order pre-operative hemostasis screens. What assays are included in your pre-operative screen? - 58 votes - closed

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Conference Calendar:
Remember to visit our Conference Calendar, recently updated. Contact George at george@fritsmafactor.com to place your event... [read-more]
Emicizumab's Effect on the PTT:
Here is an informative December 2020 CAP Today article, "Digging Into Drug’s Effect on aPTT-based Assays" [click] by staff... [read-more]
New 2021 VWD Dx and Rx Guides:
Today, 1-12-21, the World Federation of Hemophilia elearning service [click] published their an update series of von... [read-more]
Cord Blood PTT:
From Ann Helen: Can you trust results of PTT and factor VIII in umbilical cord blood? It seems as if it is usual to draw... [read-more]
Jan, 2021 QQ: The Chromogenic Factor X Assay
From Dave McGlasson: One reason that the use of warfarin will continue is that if the renal function is not adequate the use... [read-more]
Warfarin and Cannabis
Dave found Grayson L, Vines B, Nichol K, et al. An interaction between warfarin and cannabidiol, a case report. Epilepsy... [read-more]
Mixing Studies
The topic of mixing studies is perennially raised. I have 2 papers specifically in the area that I highly recommend [1,2].... [read-more]
Markedly Elevated D-dimer in an Infant
George, I’m not much for responding to posts. But for a child with markedly elevated D-dimer I’d be really worried about... [read-more]

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