Frequently Asked Questions
Common questions about laboratory tests, preparation and sample collection.
Do I need an appointment before testing?+
Most routine tests do not require an appointment, but timed or supervised tests may. Mobile sample collection should be booked in advance.
How long do results take?+
Turnaround depends on the test. Many routine tests may be completed the same day, while specialized tests can take longer.
Can medications affect laboratory results?+
Some medications may influence results. Tell the healthcare professional about regular medicines; do not stop or change them without medical advice.
How should I prepare for fasting tests?+
Fasting tests commonly require 8–12 hours without food. Requirements vary, so confirm the preparation instructions for your test.
Which tests are preferably collected in the morning?+
Some hormones, including cortisol and ACTH, vary during the day and may be requested in the morning.
How is a 24-hour urine sample collected?+
Discard the first morning urine, then collect all urine for the next 24 hours, including the first sample at the same time the following morning.
Is preparation needed for a semen analysis?+
A short period of sexual abstinence is usually recommended. Confirm the exact duration and sample delivery instructions before testing.
Can samples be collected from my home or office?+
Yes. In Istanbul, mobile sample collection can be arranged at home, work, hotel or your location when suitable for the requested test.