Microscopic observation of unfixed “wet mounts” of clinical specimens, either stained or unstained, can be useful for the rapid detection of the presence of bacterial, fungal, and parasitic organisms. Presumptive identification can be made, based on morphology and motility. The presence or absence of white blood cells and “clue cells” may also be demonstrated, and a number of well-recognized pathologic conditions may be identified.
Test Method Instructions
KOH slide. A sample of the vaginal discharge is placed on a slide and mixed with a solution of potassium hydroxide (KOH)10%. The addition of 10% KOH to the clinical specimen will dissolve tissue cells and keratinized material to allow better visualization of fungal elements.
- [[3- Check the KOH slide immediately for a “fishy,” amine odor; a strong fishy odor from the mix means vaginosis is present.]]
- 6. Examine the KOH preparation under low power (10X) Microscope for yeast pseudohyphae and under high power (40x) for smaller blastospores.
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