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Test Code SHIGC Shigella Culture, Feces


Additional Testing Requirements


If susceptibility testing is needed, also order ZMMLS / Antimicrobial Susceptibility, Aerobic Bacteria, Varies. If susceptibility testing is not needed (eg, due to lack of recovery of Shigella species from feces), it will not be performed and the ZMMLS order will be canceled at time of report.

 

In some cases, local public health requirements may impact Mayo Clinic Laboratories clients, requiring, for example, submission of isolates to public health laboratories. Clients should familiarize themselves with local requirements and are responsible for submitting isolates to appropriate public health laboratories. Clients can obtain isolates of Shigella species recovered from specimens submitted to Mayo Clinic Laboratories by calling 800-533-1710 as soon as possible after reporting (to ensure viability of the bacterium).



Shipping Instructions


Specimen must arrive within 96 hours of collection.



Necessary Information


Specimen source is required.



Specimen Required


Patient Preparation: The patient should not use antacids, barium, bismuth, antidiarrheal medication, or oily laxatives before specimen collection.

Supplies: Culture and Sensitivity Stool Transport Vial (T058)

Container/Tube: Commercially available transport system specific for recovery of enteric pathogens from fecal specimens (15 mL of non-nutritive transport medium containing phenol red as a pH indicator, either Cary-Blair or Para-Pak C and S)

Specimen Volume: Representative portion of fecal specimen

Collection Instructions:

1. Collect fresh feces and submit 1 gram or 5 mL in container with transport medium.

2. Place feces in preservative within 2 hours of collection.

3. Place vial in a sealed plastic bag.


Useful For

Determining whether Shigella species may be the cause of diarrhea

 

Reflexive testing for Shigella species from nucleic acid amplification test-positive stool

 

This test is generally not useful for patients hospitalized more than 3 days because the yield from specimens from these patients is very low, as is the likelihood of identifying a pathogen that has not been detected previously.

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
GID Bacteria Identification No, (Bill Only) No
ISAE Aerobe Ident by Sequencing No, (Bill Only) No
REFID Additional Identification Procedure No, (Bill Only) No
SHIG Serologic Agglut Method 3 Ident No, (Bill Only) No
RMALD Ident by MALDI-TOF mass spec No, (Bill Only) No

Method Name

Conventional Culture

Reporting Name

Shigella Culture, F

Specimen Type

Fecal

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Fecal Ambient (preferred) 4 days
  Refrigerated  4 days

Reject Due To

Unpreserved feces
ECOFIX preservative
Formalin or PVA fixative
Reject

Clinical Information

Diarrhea may be caused by a number of agents, including bacteria, viruses, parasites, and chemicals; these agents may result in similar symptoms. A thorough patient history covering symptoms, severity and duration of illness, age, travel history, food consumption, history of recent antibiotic use, and illnesses in the family or other contacts will help the healthcare professional determine the appropriate testing to be performed.

 

Shigella species are common causative agents of bacterial diarrheal disease worldwide. The infectious dose is low; Shigella transmission can occur via contaminated food and water or from direct person-to-person contact.

Reference Values

No growth of Shigella species.

Day(s) Performed

Monday through Friday

Report Available

3 to 5 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

87046-Shigella Culture, Stool-with isolation and preliminary examination

87077-Bacteria Identification (if appropriate)

87153-Aerobe Ident by Sequencing (if appropriate)

87077-Additional Identification Procedure (if appropriate)

87147 x 4-Serologic Agglut Method 3 Ident (if appropriate)

87077-Ident by MALDI-TOF mass spec (if appropriate)