Nitroblue Tetrazolium Dye Reduction by Neutrophils From Patients With Streptococcal Pharyngitis
1 Departments of Laboratory Medicine and Pediatrics, University of Minnesota School of Medicine, Minneapolis, Minnesota 55455
During peak clinical symptoms, 17 patients with culture proven group A streptococcal pharyngitis had less than 9% NBT-positive neutrophils. The NBT test thus does not appear to be useful in differentiating streptococcal from nonstreptococcal pharyngitis.
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