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DFA for the detection of Cryptosporidium oocysts and Giardia cysts. |
Product Details
| Meridian Catalogue #: | 250050 |
| Kit Size | 50 Determinations |
| Shelf Life from date of manufacture | 18 Months |
| Storage Requirements | 2°-8° C |
| Specimen Type | Stool |
| Assay Format | DFA |
| CE Marked | Yes |
| Sensitivity |
(Crypto) [vs. DFA]: 100% (Crypto) [vs. acid fast stain]: 97% (Giardia) [vs. DFA]: 100% (Giardia) [vs. acid fast stain]: 100% |
| Specificity |
(Crypto) [vs. DFA]: 100% (Crypto) [vs. acid fast stain]: 94% (Giardia) [vs. DFA]: 100% (Giardia) [vs. acid fast stain]: 100% |
| Hazardous | Toxic – Dimethylformamide |
| Country of Origin | USA |
| Available Within/Outside USA | Yes |
| Suggested CPT Code | C 87272; G 87269 |
| Weight | |
| Results Interpretation |
Control Reactions 1. Cryptosporidium oocysts are round to slightly oval. The oocyst wall will stain bright apple green. 2. Giardia cysts are oval-shaped organisms. The cyst will stain bright apple green. 3. Background material should counterstain dull orange to red. 4. The negative control well should not exhibit apple-green fluorescence of characteristic cyst or oocyst morphology. 5. Some background coloration may sometimes result as an artifact of slide preparation. Patient Specimens 1. Cryptosporidium positive test results: Any stool specimen exhibiting one or more oocyst with an apple-green color and characteristic morphology should be considered positive for the presence of Cryptosporidium. 2. Giardia positive test results: Any stool specimen exhibiting one or more cysts with an apple-green color and characteristic morphology should be considered positive for the presence of Giardia. 3. Negative test result: A stool specimen with no apple-green fluorescence should be considered negative for the presence of Cryptosporidium oocysts and Giardia cysts. |





