There are various renal scans that can be performed.
Usually the patient will be asked what medications they are on, and be asked to drink at least 500ml of water (patients can empty the bladder).
On arrival the patient will have an injection of a radiopharmaceutical into a vein in the arm, and imaging lying on a bed with a Gamma camera placed near the body will be performed usually straight away.
Before your Scan
There is no specific preparation involved.
Duration will vary depending on the type of renal scan (minimum 30 minutes, maximum 4 hours)
If a diuretic (Lasix) has been given you should keep drinking fluids for at least 2 hours after your scan to prevent dehydration.