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C. difficile GDH & Tox A/B Testing – TECHLAB®

Simultaneous detection of GDH and Toxins A and B

C. DIFF QUIK CHEK COMPLETE® test is a rapid membrane enzyme immunoassay for the simultaneous detection of Clostridium difficile glutamate dehydrogenase (GDH) antigen and toxins A and B in a single reaction well. The test is to be used to aid in diagnosing C. difficile disease.

Product Overview

C. DIFF QUIK CHECK COMPLETE® test can simultaneously detect GDH and Toxins A and B in a single reaction well, with results in 30 minutes. It aids in indicating whether C. difficile bacteria are present and producing toxin, helping to differentiate patients with a true C. difficile infection from C. difficile carriers.


Glutamate dehydrogenase (GDH) is the protein produced by all C. difficile bacteria, regardless of their toxin-producing ability. Testing for GDH is a good screening marker for C. difficile infection, but follow-up testing is necessary because we cannot tell from a GDH result alone if the strain can produce toxin, which makes patients sick. With a GDH-positive result alone, it is possible that the patient is simply a carrier.

Toxins A and B are produced by toxigenic strains of C. difficile and cause the symptoms of the infection. Toxin results more closely correlate to disease state and clinical outcomes than other testing options.


  • Screens for the presence of C. difficile
  • Detects C. difficile antigen and toxin
  • Confirms the presence of toxins A and/or B

Results should be considered in conjunction with the patient history.

Results in 30 minutes
Easy to interpret
Highly sensitive and specific
C. DIFF QUIK CHECK COMPLETE for GDH and TOX A and B detection from TECHLAB - Una Health

Learn how to use the C. DIFF QUIK CHEK COMPLETE