Laboratory Procedures for the Diagnosis of Intestinal ParasitesU.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, Laboratory Improvement Program Office, Laboratory Training and Consultation Division, 1982 - 233 páginas |
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Página 17
... minutes , increases the chances of finding eggs . Since the passage of schistosome eggs fluctuates , repeated daily examinations for 3 consecutive days must often be performed to demonstrate the eggs . For detecting T. vaginalis , fresh ...
... minutes , increases the chances of finding eggs . Since the passage of schistosome eggs fluctuates , repeated daily examinations for 3 consecutive days must often be performed to demonstrate the eggs . For detecting T. vaginalis , fresh ...
Página 34
... minute , a drop or two of saline or Formalin should be added . Tubes left for several hours or overnight should be placed in the refriger- ator to prevent drying . The FE technique , however , is not as ef- ficient as the zinc sulfate ...
... minute , a drop or two of saline or Formalin should be added . Tubes left for several hours or overnight should be placed in the refriger- ator to prevent drying . The FE technique , however , is not as ef- ficient as the zinc sulfate ...
Página 46
... minute quantity available may cause difficulties in obtaining positive cultures . Gen- erally , if trophozoites are present , they can be detected in wet mounts . When sigmoidoscopy is performed away from laboratory facilities , the ...
... minute quantity available may cause difficulties in obtaining positive cultures . Gen- erally , if trophozoites are present , they can be detected in wet mounts . When sigmoidoscopy is performed away from laboratory facilities , the ...
Página 59
... minute " mixing . Two concentrations are rec- ommended : 5 % for preserving specimens containing protozoa and 10 % for specimens containing helminths . For routine purposes where both helminths and protozoa are sought , 5 % is preferred ...
... minute " mixing . Two concentrations are rec- ommended : 5 % for preserving specimens containing protozoa and 10 % for specimens containing helminths . For routine purposes where both helminths and protozoa are sought , 5 % is preferred ...
Página 64
... minutes , swirling frequently . If the hot plate - stirrer is used , put a stirring magnet in the flask and adjust the speed to give a slow to moderate stirring action . 3. When the PVA powder appears to be mostly dissolved , pour in ...
... minutes , swirling frequently . If the hot plate - stirrer is used , put a stirring magnet in the flask and adjust the speed to give a slow to moderate stirring action . 3. When the PVA powder appears to be mostly dissolved , pour in ...
Otras ediciones - Ver todas
Laboratory Procedures for the Diagnosis of Intestinal Parasites Dorothy M. Melvin Vista completa - 1982 |
Términos y frases comunes
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