RT Book, Section A1 Bissonnette, Bruno A1 Luginbuehl, Igor A1 Marciniak, Bruno A1 Dalens, Bernard J. SR Print(0) ID 58075996 T1 Methemoglobinemia (Congenital) T2 Syndromes: Rapid Recognition and Perioperative Implications YR 2006 FD 2006 PB The McGraw-Hill Companies PP New York, NY SN 9780071354554 LK accessanesthesiology.mhmedical.com/content.aspx?aid=58075996 RD 2024/04/17 AB Congenital presence of high levels of methemoglobin in blood. Presence of abnormally high levels of methemoglobin in the blood because of a congenital anomaly of one chain of hemoglobin (hemoglobins M) or congenital deficit in NADH-cytochrome b5 reductase.