If a tourist dies of a sudden heart attack, who should issue a death diagnosis certificate?

the doctor who participated in the rescue.

if a tourist dies of illness during the tour, the tour guide should be calm, report to the leaders of the local reception agency and relevant personnel immediately, and notify the package tour agency, and handle it according to the opinions of the travel agency and relevant regulations.

The doctors who participated in the rescue report the rescue process to the relatives, tour leaders and friends of the deceased in detail, and present the "Report on the Rescue Work" and the death diagnosis certificate, which is signed and sealed by the attending doctor, and then copied to the relatives, tour leaders or travel agencies of the deceased respectively.