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Ova and Parasites and Giardia Antigen Panel [1748X]
Test Code17488
CPT Codes
87177, 87209, 87329
Includes
Ova and Parasites, Concentrate and Permanent Smear
Giardia Antigen, EIA, Stool
Giardia Antigen, EIA, Stool
Preferred Specimen
10 grams or 10 mL fresh stool preserved in Total Fix®, or fresh stool preserved in 10% formalin and polyvinyl alcohol transport vials
Patient Preparation
Interfering substances - bismuth, barium (wait 7-10 days), antimicrobial agents (wait 2 weeks), gall bladder dye (wait 3 weeks after procedure).
Minimum Volume
5 grams or 5 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 18 months
Refrigerated: 7 days
Frozen: Unacceptable
Refrigerated: 7 days
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Concentrated fecal specimens • Swab • Stool in transport media other than those listed
Methodology
Concentration with Microscopic Exam • Trichrome Stain • Immunoassay (IA)
Setup Schedule
Set up: Mon-Fri; Report available: 5-7 days
Reference Range
See individual tests
Clinical Significance
Giardiasis is recognized as an important human intestinal disease in most areas of the world. The causative organism, Giardia duodenalis (lamblia) is the most frequently identified protozoan parasite in stool specimens submitted to public health laboratories. This parasite has been implicated in a number of epidemics and the endemicity in the U.S., is well recognized. Acute symptoms of Giardiasis may include diarrhea, malabsorption, abdominal cramps, anorexia, nausea, weight loss, flatulence, anemia, and general weakness lasting from several weeks to several months. Chronic infections can also occur with or without an acute phase, are often associated with treatment failure and may result in recurrent symptoms. Infection with Giardia may also be asymptomatic.
