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Apr 25 2026
george

A Comparison of The Clauss Fibrinogen Assay with the Prothrombin Time-derived Assay

Click here for an open-access 2026 article comparing the time-honored Clauss fibrinogen assay with the PT-derived assay: Latona A, Hill K, Rane M, Ho A, Mitra B. Diagnostic accuracy of Clauss and prothrombin time-derived fibrinogen against rotational thromboelastometry FIBTEM-A5. Res Pract Thromb Haemost. 20266;10:103439. doi: 10.1016/j.rpth.2026.103439. PMID: 42027315; PMCID: PMC13100266. Abstract Background: Fibrinogen levels may […]
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Factor Assays
Apr 25 2026
george

Platelet-inflammation Interactions

Click here for a provocative open-access article describing the now established relationship between platelets and inflammatory processes: Escaig R, Kreutz L, Kaiser R, Nicolai L. Platelet effector functions in inflammation. Res Pract Thromb Haemost. 2026;10:103412. doi: 10.1016/j.rpth.2026.103412. PMID: 42027308; PMCID: PMC13100282. Abstract A State of the Art lecture titled “Platelet effector functions in inflammation” was […]
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Platelet Function Testing
Apr 8 2026
george

Iron Deficiency and Venous Thrombosis in Polycythemia Vera

Here is the abstract of a THSNA presentation, Thursday, 3-19-2026: Iron Deficiency Can Increase the Risk of Venous Thromboembolism in Hospitalized Patients with Polycythemia Vera: A Nationwide Analysis (THSNATravel Awardee) Kavya Balusu, Purva Shah, Candrika D. Khairani, Peter Kouides Rochester General Hospital, Rochester, NY, United States Background: Thrombosis is the leading cause of morbidity and […]
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Thrombophilia
Apr 4 2026
george

Plasminogen Deficiency and Ligneous Conjunctivitis

Dr. Amy Shapiro, Medical Director and CEO, Innovative Hematology & Indiana Hemophilia & Thrombosis Center, provided a THSNA “rare disorders presentation, Diagnosing plasminogen deficiency–clinical and laboratory considerations. Abstract: Type 1 plasminogen deficiency (PLGD) or hypoplasminogenemia is an ultrarare disorder caused by pathogenic variants in the PLG, resulting in decreased functional and antigenic plasminogen levels. PLGD […]
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Thrombophilia
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George Fritsma MS MLS

George Fritsma is a medical laboratory scientist, educator, and author. George  is a member of the International Society on Thrombosis and Hemostasis, the International Society for Laboratory Hematology, and the American Society for Clinical Laboratory Science.

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What VWD therapeutic is NOT a replacement factor?