The West Virginia medical journal
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Review Case Reports
Cetacaine induced methemoglobinemia: overview of analysis and treatment strategies.
Methemoglobin is formed upon iron oxidation of the heme molecule from ferrous (Fe2+) to its ferric (Fe3+) state. Normal methemoglobin levels in the body vary between 1-2% of the total hemoglobin. ⋯ Herein, we present to you a case of methemoglobinemia after Cetacaine (a benzocaine based topical anesthetic) utilization during a transesophageal echocardiography. Some of the other common potential inciting agents are also discussed here along with an overview of treatment strategies.