%0 Case Reports
%T A Rare Case of Familial Methemoglobinemia with Congenital Heart Disease.
%A Nayak J
%A Kumar K
%A Singh SK
%A Dhingra G
%A Nath UK
%J Oman Med J
%V 39
%N 3
%D 2024 May
%M 39015429
暂无%R 10.5001/omj.2024.16
%X Methemoglobinemia is a rare dyshemoglobin disorder which can either be congenital or acquired. Dyshemoglobin disorders can be asymptomatic or symptomatic. We narrate the case of a 12-year-old girl who presented with a fever, cough, and oxygen saturation of 85%. She was diagnosed with COVID-19, along with a large atrial septal defect and pulmonary arterial hypertension. Arterial blood gas analysis revealed normal partial pressure of oxygen and on 100% exposure to oxygen, blood color turned chocolate brown. After the resolution of COVID-19 in 10 days, the patient was treated with oral ascorbic acid and successful atrial septal defect repair. It is important to suspect dyshemoglobin disorder in a patient who presents with hypoxia/hypoxemia.