Ova and Parasites: Giardia and Cryptosporidium, Routine OAPDFA

Method(s) Light Microscopy/Direct Fluorescent Antibody
Specimen Required
Collect Stool.
Transport Inpatient: Stool collected in a dry, clean container and delivered immediately at room temperature. Outpatient: Several spoonfuls of stool transferred to a vial with SAF Fixative and delivered within 72 hours at room temperature.
Remarks Three specimens collected on separate days should be submitted per standard recommendations as parasites may be shed intermittently. Further, only 1 specimen per day will be reimbursed by Medicaid and private insurers, so only 1 specimen per day will be accepted for testing.
Stability Stool preserved in SAF: 1 month at Room Temperature. If specimen is unpreserved: liquid stool is stable for up to one hour at Room Temperature. Semisolid stool is stable for up to 2 hours at Room Temperature. Formed stool is stable for 24 hours at 4°C.
Unacceptable Conditions Specimen collected on swab, stick or diaper. Specimens contaminated with oil, barium or urine. Dry specimens are inappropriate for testing.
Schedule Mon-Fri
Billing Code 3010220
CPTCode 87269, 87272
Notes Giardia and Cryptosporidium are looked for routinely as they are the most prevalent intestinal parasites seen locally and in the U.S. as a whole.
Preferred Specimen Collection Device(s)
Reference Interval

Negative for Giardia by DFA.

Negative for Cryptosporidium by DFA.

No Appointment Necessary
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12 Patient Service Centers in Central New York.

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