Definition of IVU
In medicine, IVU stands for intravenous urogram (also called an intravenous pyelogram or IVP). This diagnostic procedure utilizes radiology to clearly view several organs in the lower torso, such as the kidneys, bladder and ureters.-
Procedure
-
An IVU begins when a patient is given an injection of an X-ray contrast medium. After this, the patient is given multiple X-rays to chart the course of the contrast medium through the patient's organs. This gives doctors a better idea of how the renal system is functioning. The contrast medium is eventually excreted via the kidneys.
Assessment
-
The X-rays offer a better picture of the kidneys, bladder and uterus. These organs are analyzed for changes in size, position, location, flow and smooth outlines. The procedure can help to diagnose kidney stones, renal cell carcinoma and polycystic kidneys.
Emergency Procedure
-
In the event that a diagnosis must be found as quickly as possible, and emergency IVU can be performed. This begins with a plain abdominal X-ray, then a second X-ray to be administered roughly 15 minutes after the contrast medium is injected.
Difficulties
-
A problem can arise with the procedure if the patient is taking the drug metformin, as this medicine can cause a reaction with the injected contrast agent. In order to prevent this from happening, the patient should stop taking metformin at least 48 hours before the procedure.
Role In Diagnosis
-
Because an IVU is used to diagnose renal issues, the procedure is best used in conjunction with other renal procedures, such as ultrasound, cytoscopy, a blood test and urine analysis.
-