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Methemoglobinemia: Case of Falsely low SpO2
oleh: Srishthi Tripathy, Anmol Sharma, Robin Choudhary, Shipra Verma
Format: | Article |
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Diterbitkan: | Wolters Kluwer Medknow Publications 2024-02-01 |
Deskripsi
Pulse oximetry is often regarded as the fifth vital sign. Based on the absorption of near-infrared light, any changes in the concentration of oxyhemoglobin influence the reading on the pulse oximeter. We present one such case of a 30-year-old lady with leprosy on multiple drug therapy that showed low SpO2 readings not associated with respiratory distress and did not improve with oxygenation. She was found to have dapsone-induced methemoglobinemia, which was reversed after 48 h of stopping the drug intake.