Escherichia coli O157, Culture

Escherichia coli O157, Culture

Test Code

8631
87046
8631
87046
Please provide SERVICE AREA INFORMATION to confirm Test Code for the lab that services your account.
In-home collection is not available in your area through Quest Mobile.

Clinical Significance

Escherichia coli O157, Culture - Infection by shiga toxin producing Escherichia coli (STEC) can cause self-limiting diarrhea to hemolytic uremic syndrome (HUS). Serotype O157:H7, the most frequently isolated, has been isolated in large food outbreaks and sporadic cases.

Test Resources

None found for this test
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Test Details

Includes

  • If culture is positive, an identification will be performed at an additional charge (CPT code(s): 87077).
    Antibiotic susceptibilities are only performed when appropriate (CPT code(s): 87186).

Methodology

Culture and Serologic Confirmation

Reference Range(s)

None isolated

Alternative Name(s)

E. coli,Escherichia coli Shiga Toxins, EIA, Stool

LOINC® Codes, Performing Laboratory

Service Area must be determined
If culture is positive, an identification will be performed at an additional charge (CPT code(s): 87077).
Antibiotic susceptibilities are only performed when appropriate (CPT code(s): 87186).

Methodology

Culture and Serologic Confirmation

Reference Range(s)

None isolated

Alternative Name(s)

E. coli,Escherichia coli Shiga Toxins, EIA, Stool
Service Area must be determined

Preferred Specimen(s)

Stool collected in Cary-Blair stool culture transport medium

Alternative Specimen(s)

Rectal swabs in Amies or Cary-Blair stool culture transport medium

Minimum Volume

1 gram or 1 mL

Collection Instructions

Collect in clean, dry container and then transfer a minimum of 1 gram or 1 mL into a Cary-Blair stool culture transport medium. Fluid level should reach line on vial.

Transport Container

Cary-Blair stool culture transport medium

Transport Temperature

Room temperature

Specimen Stability

  • Stool or swab in Cary-Blair
  • Room temperature: 4 days
  • Refrigerated: 4 days
  • Frozen: Unacceptable
  •  
  • Swab in Amies
  • Room temperature: 48 hours
  • Refrigerated: 48 hours
  • Frozen: Unacceptable

Reject Criteria

Unpreserved at any temperature • Frozen specimens in Cary-Blair stool culture transport medium • Expired transport medium • Specimen in diaper or parisitology transport vial

Setup Schedule

Service Area must be determined
Stool collected in Cary-Blair stool culture transport medium
Rectal swabs in Amies or Cary-Blair stool culture transport medium
1 gram or 1 mL
Collect in clean, dry container and then transfer a minimum of 1 gram or 1 mL into a Cary-Blair stool culture transport medium. Fluid level should reach line on vial.
Cary-Blair stool culture transport medium
Room temperature
Stool or swab in Cary-Blair
Room temperature: 4 days
Refrigerated: 4 days
Frozen: Unacceptable

Swab in Amies
Room temperature: 48 hours
Refrigerated: 48 hours
Frozen: Unacceptable
Unpreserved at any temperature • Frozen specimens in Cary-Blair stool culture transport medium • Expired transport medium • Specimen in diaper or parisitology transport vial
Service Area must be determined
Please provide SERVICE AREA INFORMATION to confirm Test Code for the lab that services your account.
In-home collection is not available in your area through Quest Mobile.
Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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