Creation and Implementation of a Blood Smear Simulation Model

Being able to prepare a diagnostic blood smear for evaluation is an essential skill for veterinary practitioners. While this basic technique can be demonstrated via videos or illustrations, it can only be learned through practice and with feedback. With the necessity for virtual learning experiences during the COVID-19 pandemic, a model was developed and paired with an online module to facilitate at home instruction and practice of blood smear preparation. Materials for the simulated blood included water, corn starch, and gel-based food coloring. Students were supplied a kit that, in addition to the simulated blood, included slides, Kimwipes®, microhematocrit tubes, a disposable pipette, a cleaning cloth, and disposable gloves. The module includes an introduction to making blood smears, an explanation of simulation kit contents, a demonstration video, and a reflection component. The simulation experience was developed for a short course with 12 students, and the required clinical pathology course, which has 100 students. Overall, the model is cost-effective, and students felt that the activity was useful to practice making blood smears and provided a good introduction and useful explanation of the overall technique in a virtual/ distance learning environment.