Besides, almost all airlines now are working with ground based medical assist agencies.
Years ago, trans-Atlantic, recently qualified young lady volunteered.
We were using HF to UK Ops with 'phone patch to US medic advice provider.
Initially put Doc in direct contact but then realised that HF radio is a bit difficult for the un-initiated so she asked the Qs and I relayed.
We dived into Boston and offloaded our suspected heart attack which turned out not to be and lady was eventually discharged.