Register Login

Global Hemostasis Assays

Feb 22 2026
george

JTH Editorial: The Problem With Coagulopathy…

Click here for the open-access editorial Thachil J. The problem with coagulopathy …. J Thromb Haemost. 2022;20:2171-2172. doi: 10.1111/jth.15795. PMID: 35733290. Abstract Coagulopathy is inextricably linked to the field of hemostasis and thrombosis. In the same manner, hemostasis and thrombosis may deal with bleeding and clot formation; coagulopathy also may be connected to bleeding or […]
read more
Comments (0)
Global Hemostasis Assays
Feb 6 2026
george

Review: Hemostasis Biomarkers

Here is a January 2026 comprehensive review of commonly used and esoteric hemostasis disorder biomarkers in downloadable format: Reardon B, Pasalic L, Favaloro EJ. Biomarkers of coagulation disorders—where to from here? Biomolecules 2026: 16, 235. https://doi.org/10.3390/biom16020235. Abstract Disorders of thrombosis and bleeding contribute to a significant morbidity and mortality burden worldwide. Correctly identifying contributing factors […]
read more
Comments (0)
Global Hemostasis Assays
Feb 4 2026
george

Review: Clot Waveform Analysis

Click this open-access article that reviews attempts at harmonization of clot waveform analysis: Tan JY, De Guzman MRT, Wong WH, et al. Decoding clot waveform analysis: toward better understanding and harmonization. Semin Thromb Hemost. 2026. doi: 10.1055/a-2778-9810. PMID: 41506647. Abstract Clot waveform analysis (CWA) extends routine coagulation assays (activated partial thromboplastin time [PTT] and prothrombin […]
read more
Comments (0)
Screening Assays
Oct 29 2025
george

PT and PTT Illustrated Mechanisms

For an illustrated overview of the hemostasis mechanisms associated with the PT and PTT, obtain this article from your medical library: Harris NS, Marin MJ, Butenas S. Beyond prothrombin time and activated partial thromboplastin time: coagulation in vivo-an illustrated review. Lab Med. 2025;56:438–47. doi: 10.1093/labmed/lmae125. PMID: 40319459. Abstract The steps that initiate coagulation in vivo […]
read more
Comments (0)
Coagulation Factors
Sep 12 2025
george

Cell-based Coagulation Overview

Check your medical library to read Harris NS, Marin MJ, Butenas S. Beyond prothrombin time and activated partial thromboplastin time: coagulation in vivo-an illustrated review. Lab Med. 2025;56:438–47. doi: 10.1093/labmed/lmae125. PMID: 40319459. Here’s the abstract: The steps that initiate coagulation in vivo are different from the components of prothrombin time (PT) and activated partial thromboplastin time […]
read more
Comments (0)
Coagulation Factors
Load more

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.

read more

Cheat Sheets from George

Name

Questions or Comments?

Email George

Quick Question

What VWD subtype Is caused by a VWF gain of function?