Monday to Friday from 7 a.m. to 12:30 p.m. and Saturdays from 8 a.m. to 12 p.m.
PREPARATION IN BLOOD
Fasting for 8 hours. Discontinue the following medications: eplerenone, spironolactone, triamterene, amiloride, thiazide diuretics.
PREPARATION IN URINE
Consult your doctor about the medications you must take and discontinue all others. Obtain a clean, dry, rigid plastic container with a capacity of 2 liters (minimum 1.5 liters). Use rigid plastic bottles or containers that have not contained detergents, bleach, or soft drinks, and wash them thoroughly with water. It is advisable not to engage in intense physical exercise the day before collecting the sample. It is advisable to start collecting urine early in the morning (e.g., 7:30 to 8:30 a.m.). It is advisable not to collect urine during menstruation. If it is necessary to do so during this period, it is recommended to use a tampon and wash the area thoroughly with water before each urination. Collect urine for 24 hours. 24-hour urine collection: 1. On the morning of the test, urinate normally when you get up and discard that urine. Note the time you did so. 2. From that moment on, collect all urine you eliminate during the day and the following night in the collection container. Keep all collected urine in the refrigerator or in a cool place, away from heat. 3. If the container is not large enough, you can use another container with the same characteristics as the previous one. 4. The next morning, at the same time you discarded the first urine, urinate for the last time and collect it in the container (if, in addition to this test, your doctor has requested a complete urine test, the first urination of the following day must be collected in a separate container). 5. Take the container(s) to the laboratory as soon as possible. Very important: To obtain valid and reliable results, it is necessary that the collection of urine over 24 hours be complete without losing any portion, even if this requires using several containers and taking them to the laboratory. It is also very important that you strictly observe the start and end times, not continuing beyond 24 hours.
WHERE TO CONDUCT THE STUDY
Admission must be done at the reception desk.
