Abstract:

To summarize the nursing experience of a patient with refractory hypokalemia caused by methanol poisoning. The patient ’s history of toxic exposure was unknown，and there were multiple complex conditions such as refractory hypokalemia，optic nerve injury and emotional disorders. Nursing points included the use of critical thinking for in-depth inquiry of medical history，combination of clinical manifestations and poison detection to determine the diagnosis of methanol poisoning，formulating and implementing individualized precise potassium supplementation program，and implementing hemoperfusion to dynamically correct metabolic acidosis，establishing a multi-modal monitoring and early warning system to prevent complications such as arrhythmia，the combination of Chinese and Western medicine and specialist nursing intervention to promote the recovery of optic nerve function，implementing structured psychological support to relieve anxiety and depression. After careful treatment and nursing，the patient was in stable condition and discharged. The patient was followed up for 1 month after discharge，and the prognosis was good.

Key words: Methanol, Poisoning, Hypokalemia, Metabolic Acidosis, Optic Nerve Injury, Emergency Nursing