Aside from the tube and slide methods, the gel method can be used to crossmatch blood samples. The gel method involves filling microtubes with dextran acrylamide gels, which filter to catch agglutinated RBCs. Standardization, stability, a low sample volume, ease of performance and analysis, and speed are just a few of the advantages it has over conventional tube testing. Gel cards are more sensitive and specific than conventional tube methods, as well as less time-consuming. The Gel card method produces comparable results to the conventional tube method with anti-human globulin (AHG). This method is straightforward to use and produces a consistent, repeatable, and stable end-point result that may be recorded and photocopied for future reference. Furthermore, cremation easily removes gel cards, protecting blood bank workers from transfusion-related infections.

V, R., C, V., & S, S. T. (1970, January 1). Gel card and saline tube techniques for blood cross-matching: A comparative assessment study. RGUHS Journal of Allied Health Sciences. Retrieved February 23, 2023, from https://journalgrid.com/view/article/rjahs/12433396