Methemoglobin is a topic covered in the Guide to Diagnostic Tests.

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Methemoglobin , whole blood (MetHb)

<0.15 g/dL [<23.25 mmol/L] or <1.5% of total Hb

Blood gas syringe (heparinized) (Lavender or green for total hemoglobin only)


Don't remove the stopper or cap, analyze promptly.

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