Essential and Toxic Trace Elements (13 Parameters)

Avoid alcohol for 24 hours before the test. For children under 1 year, do not feed for 30-40 minutes before the test. For children aged 1 to 5 years, do not eat for 2-3 hours before the test. Do not eat for 12 hours before the test; still water is allowed. Avoid diuretics (as agreed with your doctor) for 48 hours before urine collection. Do not smoke for 30 minutes before the test.