Dani the scientist (MLS, ASCP) on Instagram: "This is how a wet prep is done in the lab. On a wet prep, we assess for presence of white blood cells, clue cells, fungal elements, and trichomonas vaginalis parasite. We also perform a “whiff test” which is when we add a drop of potassium hydroxide (KOH) onto the specimen and literally “whaff” the sample and see if this reaction produces a fishy odor, which would be a positive whiff test and is suggestive of bacterial vaginosis. The organism that ca