
Fecal Fat, Qualitative
Quest Diagnostics
Sample type: Stool
Requires fasting: No
Sample collection required at Quest Diagnostics location
Details
Fecal Fat, Qualitative - Results may indicate malabsorption or maldigestion. False positive results can occur due to mineral oil or castor oil present in the specimen. Large number of neutral fat globules may indicate steatorrhea.
- Fecal Fat, Qualitative
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): 5 grams or 5 mL of freshly passed, then frozen stool in a clean leak-proof screw-cap plastic container
- Alternative: NA
- Minimum Volume: 1 mL
- Collection Instructions: NA
- Transport Container: Clean, leak-proof, screw-cap plastic container
- Transport Temperature: Frozen
- Specimen Stability:
- Refrigerated: 5 days
- Frozen: 30 days
- Reject Criteria:
- Thawed specimens • Specimens in transport media or on swabs • Samples submitted in paint cans
State restrictions:
Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island




