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HelpTest Code GCDFA Giardia and Cryptosporidium DFA Assay
Important Note
Giardia & Cryptosporidium Antigen, Stool
| Alternate Test Name: | Giardia and Cryptosporidium DFA Assay |
| Dept: | Microbiology |
| SPECIMEN COLLECTION REQUIREMENTS | |
| Collection Container: | A sterile container or preserved, in 10% formalin or EcoFix within 24 hours of collection |
| Specimen: | Stool |
| Collection Notes: | A sterile container or preserved, in 10% formalin or EcoFix within 24 hours of collection |
| Transport Temperature: | Preferred transport refrigerated (2-8oC), ambient (15-30oC) |
| Specimen Volume: | Preferred Volume: 5 grams or 5 mL; Minimum Volume: 5 grams or 5 mL |
| Also Acceptable: | Raw stool (if delivered to the laboratory promptly) |
| TECHNICAL SPECIFICATIONS | |
| Performed: | Performed twice weekly |
| Reported: | Same day |
| Methodology: | Direct Fluorescent Antibody Screen |
| CPT: | 87269, 87272 |
| LOINC: | 14210-9, 39534-3 |
| Stability: | Room Temperature: 24 Hours; 30 Days preserved; Refrigerated: NA; Frozen: NA |
| Reference Range: |
Negative |
| Notes: |
storage conditions: ambient (15-30oC) Screens for Giardia and Cryptosporidium antigen only. This test is the most appropriate O&P option for patients WITHOUT a travel history to parasitic endemic areas, non-immunocompromised patients and patients who have not recently immigrated. In order to adequately rule out a parasitic infection, it is recommended that three separate stool samples be provided on three consecutive days. This test should not be ordered on patients in a hospital setting who have been admitted > 3 days without consulting infection prevention. |