Reference values for methemoglobin concentrations in children

OBJECTIVE: The aim of this work was to establish reference values for methemoglobin levels in 6 to 10-year-old children. METHODS: Methemoglobin concentrations were studied in clinically healthy children. The method for methemoglobin measurement used, neither uses highly toxic chemical compounds nor expensive enzymatic methods, thus it is feasible in the laboratory routine. RESULTS: The results showed higher reference values for clinically healthy children (from 3.61 to 6.44%) than for adults (from 1.9 to 3.8%). CONCLUSIONS: The higher concentrations of methemoglobin in children may be explaine...

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