Outpatient Only - 7 sites [+]
Greenwich Village
Lenox Hill
Northern Westchester
PBMC
Phelps
SIUH North
SIUH Princes Bay

Clostridioides difficile (C. diff) GDH Toxin A/B with Reflex to Molecular Detection

Synonyms

  • C DIFF TOXIN/GDH W/RFLX TO PCR
  • CDIFF
  • CDIFFAB
  • CLOSTRIDIUM
  • LAB10697

Cerner Name

C diff Toxin/GDH w/Rflx to PCR

Clinical Info

This test detects two antigens produced by C. difficile: GDH and Toxin A/B. 
This test reflexes to confirmation by molecular detection for C. difficile toxin.
Formed stools will be rejected.

Specimen Sources

Stool

Specimen Types

Stool

Specimen Volume

1 gram or 1 mL stool

Container

Stool Container

Collection Instructions

Collection Instructions
Collect fresh stool in sterile, leak-proof container without media, preservative, or metal ion. Cap securely. Do not use any preservative, media or additive. For patients requiring the use of diapers, first line the diaper with clean plastic to prevent absorption. Then transfer 5 grams or 5 mL of the stool specimen from the plastic lined diaper to the sterile container. Do not submit the diaper itself.

Transport Instructions

Frozen

Specimen Stability

Room temperature: Unacceptable
                 Refrigerated: 72 hours
                  Frozen: 30 days

Methodology

Immunoassay (IA)

Days Performed

Sunday - Friday
 
TAT: 2 - 3 Days

Performing Laboratories

Quest Diagnostics' Nichols Institute, Inc. - Chantilly

CPT

87324,87449

PDM

1959728

Ordering Instructions

This test detects two antigens produced by C. difficile: GDH and Toxin A/B. This test reflexes to confirmation by molecular detection for C. difficile toxin.

Formed stools will be rejected.

Results
Component Name Base Name Common Name External Name
GDH ANTIGEN GDHANT GDH ANTIGEN GDH Antigen, EIA
TOXIN A AND B TOXINAB TOXIN A AND B Toxin A and B, EIA
C DIFF TOX B QL PCR RFLX CDIFFTOXBPCR C DIFF TOX B QL PCR RFLX C. difficile toxin B, PCR

Result Interpretation

Not Detected
 
Includes

  • If the GDH Antigen is detected and the Toxin A and B are not detected or the GDH Antigen is not detected and the Toxin A and B are detected, Clostridium difficile Toxin B, Qualitative, Real-Time PCR will be performed at an additional charge

Forms
ID Serology LAB10697 build edit