Diagnostic Parasitology

Diagnostic Parasitology  Photo

The study of diagnosis of parasitic infections is called diagnostic parasitology. The following are the main ways in which parasitic infections are diagnosed in the laboratory by Microscopic Examination. The majority of intestinal, urinary and blood parasites can be detected microscopically in unstained or stained preparations, either directly or following concentration. By cultural techniques only a minority of parasitic infections are diagnosed routinely by cultural techniques. By Immunodiagnosis Serologic methods are available in cases such as toxoplasmosis, trichinosis, echinococcosis, cycticercosis, chronic schistosamiasis, or extra-intestinal amebiasis, where the organism is not readily demonstrated. The importance of properly collected specimens for diagnosis cannot be over emphasized. Inadequate, old or improperly preserved samples are usually of little or no value in establishing a diagnosis and may lead to erroneous conclusions. Formalin-ether (or ethyl acetate) concentration procedure: after centrifugation of the sample the parasites present are heavier than solution and settle in the sediment of the tube • Zinc sulphate flotation technique: after 15min parasites come out on the surface of the solution Saline wet preparations: good for the recovery of the motile protozoan trophozoites

Blood Parasitology

Tissue Parasitology

Stool Parasitology

Fluid Parasitology

Diagnostic methods

Microscopic Examinations 

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