A 52-year-old member from Hougang, Singapore, was climbing Mera Peak in Nepal when she sent a message to the operations team from Thangnag. She reported a severe headache, nausea and difficulty breathing that had begun two days earlier at Mera High Camp and had not improved despite descending roughly 1,000 meters and using supplemental oxygen. Concerned about possible high altitude pulmonary or cerebral edema, the operations team approved an emergency helicopter evacuation to a hospital in Lukla. After evaluation she was discharged in improved condition. She later confirmed that she had arranged her own onward transport to Kathmandu and expressed thanks for the assistance.