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TEST ID STCULT CULTURE, STOOL

Important Note

Intended for the quantitation and identification of pathogens in stool that may cause gastroenteritis, specifically Salmonella species, Shigella species, E.coli O157:H7, and Campylobacter species.

This test order includes:

  -Qualitative detection and differentiation of Shiga Toxin 1 and Shiga Toxin 2 in stool

  -Qualitative detection of Campylobacter antigen in stool

Any special requests will need to be communicated with the Microbiology Department

Infectious

Performing Laboratory

NRLS-Microbiology

Specimen Type

RAW STOOL in clean plastic container

STOOL IN FECAL TRANSPORT- (Cary Blair Fecal Transport or FecalSwab transport)

**Only one specimen will be accepted for culture every 24 hours**

Specimen Required

Stool collection:

Pass stool into a clean, dry container. 

--The use of a bed pan or a large plastic bag into a waste basket can be used to catch the specimen

--Collect stool from diaper lined with plastic. If infant or child has diarrhea, line the diaper with plastic wrap or use a pediatric urine bag placed over the rectum to collect a specimen that is not contaminated with urine.

CAUTION:  Never leave plastic wrap against a child's skin for more than 30 minutes at a time.

-Label cup with patient name (first and last) or other unique identifier, patient hospital
identification number,  date and time of collection, collector initials, and test(s) being
ordered.
-Promptly forward specimen to laboratory at ambient temperature.

**Must be received in the laboratory within two hours of collection**

 

For Cary Blair media (Orange top transport)

**Specimen needs to be transferred to transport media within 2 hours of collection**

1)  Open the lid of the tube containing the liquid. 

2)  Using the built-in spoon, place small spoonfuls of stool (sample the bloody, slimy, or watery portions) into the tube until the liquid level rises to the red line.   

3)  If the stool is formed, try to sample small amounts from each end/side and the middle. 

4)  Mix the contents with the spoon, then twist the cap tightly closed and shake to mix well.

For the FecalSwab transport:

**Specimen needs to be transferred to transport media within 2 hours of collection**

-Label cup with patient name (first and last) or other unique identifier, patient hospital
identification number,  date and time of collection, collector initials, and test(s) being
ordered.
-Promptly forward specimen to laboratory at ambient temperature.

1) Remove the swab from the package, making sure to only hand the swab by the shaft

2)  Collect the stool onto the swab by inserting the swab tip into the stool sample and rotate.  Be sure to sample the blood, slimy, or watery areas.  DO NOT try to collect a large amount of sample on the swab, but fecal material must be visible on the swab.

3)  Carefully insert the swab into the vial of fluid that came with the swab (orange top tube) and mix the specimen into the fluid by swirling against the inside of the tube.

4)  Break off the swab at the perforation into the tube by holding the top of the swab shaft and bending toward you.  Discard the top portion of the swab and replace the orange lid.

5)  Shake well until mixed.  Confirm that the liquid level is not above the noted line on the tube.

 

-Label transport media with patient name (first and last) or other unique identifier, patient hospital
identification number,  date and time of collection, collector initials, and test(s) being
ordered.
-Promptly forward specimen to laboratory at ambient temperature.

 

Specimen Minimum Volume

-1 gram of Raw stool

-1 Cary Blair transport

-1 FecalSwab transport

Specimen Stability Information

Specimen Type Temperature Time
Raw stool in cup Room Temperature 2 hours
Stool in Cary Blair Room Temperature 96 hours
Stool in FecalSwab Room Temperature 48 hours

 

Reference Values

An interpretive report will be provided

Rejection Criteria

-Stool culture submitted from patients after more than 3 days admission will generally not be accepted

-Specimens submitted outside of the stability recommendations

-Stool submitted in a diaper

-Multiple stool samples submitted on the same day for culture

-Transport tubes overfilled

 

Day(s) Performed

Sunday through Saturday

Report Available

Preliminary report available within 24 hours.  Final report available at 48 hours