Examiners may collect fingernail scrapings and pluck head and pubic hairs. Examiners also collect fingernail scrapings and pluck head and pubic hairs. The DNA was recovered from fingernail scrapings as well as pubic hair samples. Sometimes the victim has scratched the perpetrator in defense and fingernail scrapings can be collected. Scraping these residual black dot will yield the best diagnostic scrapings for microscopic exam. The sample examined is generally nail scrapings or clippings. Skin scrapings may be used to follow the progress of treatment in demodectic mange. Scrapings from the lesion can also be cultured to identify the organism involved. In cases of keratitis, diagnosis is typically achieved through evaluation of corneal scrapings. First, a mixture of carrot and papaya scrapings is prepared. Two volumes of autobiography were published&colon; "Scraping a Living" (2007) and "Further Scrapings" (2009). The scrapings are mixed with potassium hydroxide (KOH). Many of the regulars were poor material, the scrapings of Neapolitan and Sicilian jails. The specimen of choice for diagnosing "Trichomonas tenax" trophozoite is mouth scrapings. They mark their territory with scrapings, bent saplings and scent marks.