After a quick pre-test, Duolingo generously, extremely generously, marked me as 52% fluent in Spanish. Over the last 5 days of casual use, it has corrected the estimate to 49% (still generous), and then today gave me the following in the "Medical" section.
I guess I hope this is a phrase that appears in every language track, and not something they thought would be especially useful in Spanish? or especially useful for me personally?