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[Two cases of methemoglobinemia: In a military community hospital].

Acquired methemoglobinemia is a rare but potentially life-threatening condition that is frequently associated in the primary care setting with topical anesthetics, dapsone, and antimalarial agents.1 As illustrated by the cases of 2 patients who presented to Fort Belvoir Community Hospital in Virginia in the span of 3 weeks, health care providers must maintain a heightened index of suspicion for methemoglobinemia involving clinical presentations of persistent hypoxia or cyanosis.