Eli Beer, founder and President of United Hatzalah was flying El Al from New York to Israel when he rushed to save the life of a passenger who was having a hypoglycemia attack. Using a borrowed glucometer, honey and jam he stabilized the patient so the flight could continue to Tel Aviv.
https://israelrescue.org/blog/dramatic-rescue-eli-beer-saved-a-mans-life-mid-flight-this-morning/