
Giardia Antigen, EIA, Stool
Quest Diagnostics
Sample type: Stool
Requires fasting: No
Sample collection required at Quest Diagnostics location
Details
Giardia Antigen, EIA, Stool - 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.
- Giardia lamblia Ag
Estimated days for results: Results should be available in 2 - 5 business days after the sample is collected
2–5 business days
Collection Options with Fullscript
Sample collection requires a test kit that can be picked up at a nearby Quest Diagnostics Patient Service Center.
Quest Diagnostics Patient Service Centers (PSC)
- Location: Visit a nearby Quest Diagnostics Patient Service Center.
- Cost: $10 sample collection fee (paid during lab order checkout).
- Scheduling: Schedule your appointment here. Appointments are recommended to reduce wait times. Walk-ins are accepted, but may experience delays. Aim to arrive 10 minutes before your appointment.
- Collection Instructions:
- Bring a valid ID.
- Bring your digital or printed requisition form, available in the Labs tab of your Fullscript account.
- Check-in: Scan the QR code from your confirmation email or follow kiosk instructions.
- More Info: Quest Diagnostics collection guide
- Preferred Specimen(s): 10 grams or 10 mL stool preserved in Total-Fix® or 10% formalin transport vial
- Alternative: NA
- Minimum Volume: 5 mL
- Collection Instructions: NA
- Transport Container: Total-Fix transport vial
- Transport Temperature: Room Temperature
- Specimen Stability:
- Room temperature: 14 days
- Refrigerated: 7 days
- Reject Criteria:
- Concentrated fecal specimens • Stool in transport media other than those listed above • Swab
State restrictions:
Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island




