Figure 3From: Successful treatment of methemoglobinemia in an elderly couple with severe cyanosis: two case reports A strong positive reaction for nitrite was found in the bamboo shoot soup (arrow) when compared to other food by Roche Combur 10 Test® M test strips. A weakly positive reaction of nitrite was found in patient’s blood by using the same kind of test strip. NIT (arrow) = nitrite; SG = specific gravity; pH = hydrogen ion (H+) concentration; LEU = leukocytes; PRO = protein; GLU = glucose.Back to article page