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Ova and Parasites |
| Test | Ova and Parasites |
| Indication | Establish the diagnosis of parasitic infestation |
| Physiology | Amebic cysts, Giardia cysts, and helminth eggs can be recovered from formed stools. Mushy or liquid stools often yield trophozoites. |
| Normal Range | No parasites seen |
| Sample | Fresh or preserved random stool or duodenal aspirate. If pinworm is suspected, a scotch Tape preparation should be submitted to the laboratory instead of stool. |
| Test Method | Wet mount and trichrome stain, Immunofluorescence, Counterimmunoelectrophoresis, Enzyme linked immunosorbent assay. |
| Related Tests | Ascariasis, Cryptosporidium procedure, Echinococcosis, Entamoeba histolytica, Enterovirus culture, Filariasis, Pinworm preparation, Rotavirus, Stool culture. |
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