Hydrogen peroxide

CAS RN: 7722-84-1

Laboratory

A) No routine laboratory tests are needed when a small amount of 3% hydrogen peroxide is ingested.
B) After a high-volume or high-concentration ingestion, patients should be evaluated for caustic injury and for oxygen embolism.
C) Patients with any symptoms of oral or gastrointestinal tract injury should undergo endoscopy.
D) Any patient with symptoms of cerebral oxygen embolism should have a head CT.
E) Echocardiography or chest CT with contrast may demonstrate oxygen in the right ventricle.
F) Abdominal and upright chest radiograph may reveal radiolucent gas in the gastrointestinal tract, right ventricle, mediastinum, or the portal venous system.
G) An ECG and continuous cardiac monitoring may reveal signs of gas embolization. Desaturation on pulse oximetry, hemodynamic instability, and neurologic deficit may be indicative of gas embolus, and at that time an arterial blood gas would be indicated.
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