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Lab Test Dictionary

Ova and Parasite Screen


Immunoassay (EIA)


Screen for Giardia and Cryptosporidium

Specimen Type


Performing Lab

RCHSD Microbiology

Epic ID


Lab Test Days


Standard TAT

3-5 days

Stat TAT


Collection Information

Specimen Required


Container Type

See Below

Collection Instructions

Submit blue-capped vial (PVA) and yellow-capped vial (10% Formalin) from the AlphaTec stool collection set, or fresh stool in sterile container.**If multiple collections are to be submitted, ensure that date and time of collection are documented on each specimen. Only one collection per date is accepted.**

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Blue and yellow AlphaTec vials: must be received by the laboratory within the expiration date stamped on the tubes. Fresh stool: must be received within 2 HOURS of collection. If transport is delayed, place in blue and yellow AlphaTec vials for subm

Rejection Criteria

More than one specimen collected on same date, stool containing Barium or mineral oil, and/or colonic washes or aspirate are not acceptable.

Test Volume Required

1 gram stool per vial or 2 grams of fresh stool.

Minimum Test Volume

1 gram stool per vial or 2 grams of fresh stool.

Processing Instructions

Refer to microbiology processing manual

Included Tests

This immunoassay detects ONLY Giardia and Cryptosporidium. If additional parasite detection is desired, refer to EPIC ID 681X - Ova and Parasites, stool concentrate and permanent smear.