Dial 147 and enter your DNI. Select 1 for turnos. If you don't want to use the automated system, wait for a person to answer your call. They have your list of doctors on the screen. Indicate what doctor you want to see. They offer the next date and time available.
When you have the order for a test, present it with your inscription paper to the CoPS plan since you don't have a card. The hospital arranges turnos on one day of the week during certain hours for those with CoPS. Hospital Ramos Mejia schedules turnos only on Thursday from 8:30-10:00am. Your appointment for an eye or ear exam is scheduled and attached to the order you present at the consultorio in the hospital.
When you need a blood and urine test, you go to the window where turnos are given out in the morning at 10:00am. Arrive early and wait. Yes, the line is long. Those people in line don't have the means to pay for the test, so they are grateful they don't have to pay for it at the hospital. It's Medicare for All in Argentina. Blood extractions are done from 6:30-8:30 Mon-Fri after a 12 hour fasting. Results are ready in five days from 9am-1pm. Present the laboratory number you received from the nurse to claim the analysis.
When you need a chest x-ray, go to the department in the hospital where turnos are scheduled. Do the same for a ECG. Get to know the hospital. Walk around and make a note of when turnos are given out for specific tests. If you don't see the information posted, ask someone at the information desk. That's how I know that ECG turnos are schedule from 9-11am in the cardiology section and the location of the room where the test is done.