Preliminary reports available 3 to 6 days, complete reports may require an additional 2-4 days.
Stool Zn-PVA or Total Fix container
The specimen should be collected directly into the plastic feces specimen container or into a bedpan, avoiding contamination with urine or water. Transfer the feces from the bedpan into the EcoFix container for delivery to the laboratory.
Leukocyte analysis is useful for the differentiation of bacillary dysentery, demonstrating a preponderance of polymorphonuclear (PMN) leukocytes over mononuclear leukocytes. The PMN cells exhibit clear-cut ring nuclei with evidence of toxic necrosis of cells and degenerative changes. The absence of leukocytes does not rule out invasive bacterial diarrhea. If samples are collected too early in the acute phase of the disease, it may result in negative screens.