| Collection Instructions: |
- Do not collect samples during or until 3 days after menstrual period or if hematuria or obvious rectal bleeding, e.g. hemorrhoids are present.
- For 7 days prior to and during the test period, do not take more than one adult aspirin (325 mg) a day and no other non-steroidal drugs (ibuprofen).
- For 3 days prior to and during the test period, avoid Vitamin C in excess of 250 mg/day (for all sources, dietary and supplemental, e.g. some iron supplements contain > 250 mg Vitamin C).
- For 3 days prior to and during the test period, avoid red meat, including processed meats and liver; avoid melons, radishes, turnips and horseradish.
- Remove toilet bowl cleaners from toilet tank and flush twice prior to specimen collection.
- Coumadin and other prescription medications are usually not restricted.
- Inpatient Collection: For fecal collection refer to the instructions provided in the Laboratory Guide Appendix, Collection Procedures: Fecal Collection, Random/Timed. A small fecal specimen is applied to the guaiac paper of the slide as a thin smear using the applicator stick provided. Slides may be developed 3-5 minutes after sample application.
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