Cryptosporidium & Giardia Antigens by EIA
Test Mnemonic
OVAPSC
CPT Codes
- 87328 - QTY (1)
- 87329 - QTY (1)
LOINC ®
48059-0
Aliases
- Cryptosporidium Antigen
- Cryptosporidium EIA
- Giardia Antigen
- Giardia EIA
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 5 mL | Stool | Clean container | Ambient | Outside locations should submit stool preserved in formalin. Transport at ambient temperature preferred. Unpreserved stool should be submitted to the lab within 30 minutes of collection and transported in a clean leakproof container. Stool can be transported at ambient temperature or refrigerated. Do not freeze. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 5 mL | Stool | O-P kit | Ambient | Outside and outpatient locations should submit stool preserved in formalin. Transport at ambient temperature preferred. |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | Preserved: 2 months; Unpreserved: 30 minutes |
| Refrigerated | Preserved: 2 months; Unpreserved: 30 minutes |
| Frozen | Preserved: 2 months; Unpreserved: Unacceptable |
Days Performed
Mon - Fri
Turnaround Time
1 - 6 days
Methodology
| Name | Description |
|---|---|
| Enzyme Immunoassay (EIA) |
Reference Range
| Ova and Parasite Screen | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Freetext | Negative for Giardia lamblia and Cryptosporidium species. |
Special Info
Average TAT for this assay is 20 hrs. The Ova and Parasite Screen is a screening test for Giardia lamblia and Cryptosporidium species only. This test replaces the traditional Ova and Parasite Exam. Ideally, fresh stool should be collected and immediately placed into the O-P transport kits which contain 10% formalin as a preservative. Preserved stool should be transported at ambient temperature. Unpreserved stool should not be submitted unless it can be delivered to the laboratory within a few hours in a clean leakproof container. Unpreserved stool should be transported at either ambient or refrigerator temperature but never frozen. Other transport media such as Cary-Blair, MIF or C & S diluted samples may interfere with confirmatory test methods. Interfering substances include barium, bismuth, metamucil, castor oil, mineral oil, or antiamoebic drugs within one week prior to specimen collection. O-P transport kits with collection instructions can be obtained from Client Services or the Outpatient Laboratories.
Clinical Info
Rule out presence of Giardia lamblia and Cryptosporidium species. One negative result does not rule out the possibility of parasitic infection.