How does NASA ensure that astronauts going into space for months at a time don’t get sick?

Question

I assume the astronauts are healthy, thoroughly vetted by doctors, trained in basic medical principles, and have basic medical supplies on board.

But what happens if they get appendicitis or kidney stones or some other acute onset problem?

In: 2048

Answer 1

A astronaut on the ISS had DVT. It happens, you probably just don’t hear about it because health information is a private thing.

There’s also a flight control position that is essentially dedicated astronaut nurses and doctors.