Shiga toxin enzyme immunoassay

TEST DESCRIPTION

Detection of shiga toxin 1 and 2 in a stool specimen or broth culture by enzyme immunoassay.

Methodology

Enzyme immunoassay

Reference range

No shiga toxins detected

TEST FREQUENCY & RESULT AVAILABILITY

Performed daily. Results are typically available within 1 business day after specimen receipt.

ACCEPTABLE SPECIMEN TYPES AND COLLECTION

• Stool in transport medium (e.g., C&S or Cary Blair)
• Unpreserved stool in a sterile container
• Stool in broth culture (e.g., GN or MacConkey broth after incubation for 16–24 hours)

SPECIMEN STORAGE & TRANSPORT

Stool in transport medium : Store and transport refrigerated (2–8 °C/36–46 °F) for up to 14 days.

Unpreserved stool in sterile container: Store and transport refrigerated (2–8 °C/36–46 °F) for up to 14 days.

Stool in broth culture (pre-incubated): Store and transport refrigerated (2–8 °C/36–46 °F) for up to 7 days.

REJECTION CRITERIA

• Hold time greater than 14 days for stool in transport medium or a sterile container
• Hold time greater than 7 days for stool in broth culture (previously incubated)
• Samples that are not stored refrigerated
• Samples that arrive in containers that are damaged during transit or are not properly labeled with patient identifiers

CODES

CPT: 87427
LOINC: 53946-0
Test code: 2290

TEST FEE

Refer to the current fee schedule.