TY - CHAP M1 - Book, Section TI - METHEMOGLOBINEMIA A1 - Pinyavat, Teeda A2 - Houck, Philipp J. A2 - Haché, Manon A2 - Sun, Lena S. Y1 - 2015 N1 - T2 - Handbook of Pediatric Anesthesia AB - A 4-year-old undergoes an uneventful esophagogastroduodenoscopy (EGD) but is noted to be cyanotic in the postanesthesia care unit 1 hour later. He appears agitated and tachypneic, and has perioral cyanosis. Despite being placed on 100% oxygen by face mask, his SaO2 is 86%. His lungs are clear, and his stat chest x-ray is normal. An arterial blood sample is chocolate-colored. PaO2 and calculated oxygen saturation are normal. Cetacaine spray (14% benzocaine, 2% butamben, 2% tetracaine) was used for topicalization. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accesspediatrics.mhmedical.com/content.aspx?aid=1105553659 ER -