Laboratory Procedures for the Diagnosis of Intestinal Parasites

3x2-inch slide acetic acid amebae amebiasis applicator stick aqueous biopsy buffered methylene blue Carbol-xylene centrifuge clinical collected concentration containing coverslip crystals culture cysts debris destain diagnosis dilution Distilled water eggs and larvae eggs counted ether examined fecal smears fecal specimens feces film flammable solvents flask flotation fluid Formalin fresh glass-stoppered bottle handling helminth helminth eggs hematoxylin histolytica hookworm infections iodine solution laboratory larvae layers material medium mercuric chloride method methylene blue microscope minutes mixture obtained ocular micrometer organisms parasites parasitology permanent stained phosphotungstic acid picric acid pipette portion preserved specimens proglottids protozoa protozoan cysts PVA-fixative quantity Quensel's r/min recommended refrigerator remove room temperature routine saline sample satisfactory Schaudinn's fixative schistosome sediment serum sigmoidoscopy sodium species Staining Procedures sterile stool stopper stored swab tap water tape technique thick tion tissue trichrome trophozoites trophozoites and cysts tube unpreserved usually vials worms xylene zinc sulfate