 A Dota NOC PET scan is used to diagnose neuroendocrine tumours. A 2 hour fast is recommended before the scan. On the day of the procedure, please carry all your medical reports and inform the attendants staff if you are pregnant or of any previous contrast allergies. During the procedure, a small dose of radioactive injection is given intravenously and the whole body scan is done an hour later. The initial part of the scan is a diagnostic CT variant intravenous contrast is given followed by PET imaging. A serum creatin blood test is mandatory before the scan if the doctor has advised for a contrast CT. The test reports shouldn't be more than 2 months old. Please stay away from pregnant women for a day after the scan. The scan takes about 10 minutes and the reports will be issued the next day.