My son was with me in Taiwan the last couple of weeks, and he had chest pains.  They were on the right side of his chest, but we decided to go to ER to get it checked out.  They have a national health care system.  They did two blood tests, three blood pressure checks, took x-rays, and made him stay for 6 hours so they could monitor levels in his blood which might indicate heart trouble.  We're not a part of their system (yet), but the entire bill was $130.  The service was great.  There were plenty on staff to get the patients treated.  When he arrived, he was under care within 5 minutes.

For those who think a national health care system is junk, I'll have to speculate those people have never used a system outside of the U.S. and are just parroting the "horror" stories.  Our system is outrageously expensive junk, with or without the ACA.