First of all, it is recommended to reach the labs early so that your technician can take proper care of any special preparation needed. You should remove all the metal pieces of jewelry from your body, including piercing. Electronic devices are also not allowed in the premises of the test area so take care of that.
Carry your doctor’s prescription as HRCT Scan Chest is an ordered test. Most importantly, do not consume anything 4 hours before the test. If you are on any medication, inform your doctor about that. Other than that, show the old reports and inform if you are pregnant, menstruating, or breastfeeding. It is best that you consult your healthcare provider or lab technicians on preparing for the HRCT Scan Chest test.