Unformed (soft or liquid) stool/feces specimens collected in a sterile, leak-proof container.
*Stool should only be submitted for patients >12 months old.
Send to the lab immediately at room temperature. If transport is delayed, refrigerate or freeze specimen and send on ice.
1 hour at room temperature; 1 to 24 hours refrigerated; if more than 24 hours, specimen must be frozen.
Formed stool, stool collected on swabs, diapers containing stool, and stool sent in enteric transpot media are not acceptable for this test. Washings (colonic, duodenal, etc) will not be accepted due to their possible dilution factor. Specimens containing barium should not be submitted.
2 hour expected turn-around time from receipt in lab
If the GDH antigen screen is found indeterminate, testing will reflex to Illumigene® testing for confirmation of specimen.
87324 (GDH antigen screen); 87493 (Illumigene®)
GDH antigen screen: membrane enzyme immunoassay; Confirmatory testing: loop-mediated isothermal DNA amplification (LAMP)