COVID PCR Test without appointment in Salvador (urgent)

Hello,
A friend of mine is in Salvador right now (Friday), and is supposed to board a flight on Sunday morning which requires her to have a negative PCR test certificate. 
Unfortunately she was ill prepared and thought that she could just walk into a pharmacy and get the test, but they told her she needs an appointment, 2-3 days in advance.
Does anybody know of a pharmacy or a clinic (in Salvador) which does these tests without appointment? And is there a chance that she will get the results before Sunday morning (ie Saturday evening)?

Hi Kuterino,

I'm not sure if your friend is aware that all states in Bahia including salvador have entered into a lockdown from 17h today until 05:00 on Monday. All non essential activities have been suspended. Pharmacies and supermarkets will remain open, so she may be lucky. Do tell her to be careful as everyone is supposed to stay indoors.

Good luck

Ikexplorer

She managed to get it done, at Hospital Cardio Pulmonar. Maybe this will help someone else.