Intravenous pyelogram
What is an Intravenous Pyelogram?
An Intravenous Pyelogram (IVP) is a specialized form of imaging test used to view the structures of the urinary system, including the kidneys, ureters, and bladder. This procedure uses a contrast dye that is injected into a vein and travels through the urinary system to show a series of x-ray images.
Preparation for an Intravenous Pyelogram
When preparing for an IVP, it is important to drink plenty of fluids so that the dye will travel more easily through the urinary system. You should also notify your doctor of any allergies or other medical conditions that may interfere with the procedure. Unless otherwise instructed, you should not eat 4-6 hours before the procedure.
Procedure of Intravenous Pyelogram
The procedure for an IVP examination is as follows:
- You will be asked to lie on an x-ray table in a variety of positions.
- A contrast dye will be injected into a vein in your arm.
- You will be asked to hold your breath and remain still as x-ray pictures are taken.
- The procedure usually takes about 10-30 minutes.
Types of Intravenous Pyelogram
There are two types of IVP tests: Conventional IVP and Aquatic IVP. Conventional IVP involves intravenous injection of a radiocontrast agent that allows the radiologist to view the structure and anatomy of the urinary system. Aquatic IVP involves injecting a small amount of radioactive tracer material into the urinary system.
Risks of Intravenous Pyelogram
The risks associated with an IVP are typically minor but may include:
- An allergic reaction to the contrast dye.
- Temporary confusion or disorientation.
- Nausea and vomiting.
- Pain or discomfort at the injection site.
Why and When Intravenous Pyelogram is Used
IVP is typically used to diagnose or monitor conditions of the urinary system such as kidney stones, tumors, blockages, or infections. It may also be used to help plan for a medical procedure, such as a surgically removing a kidney stone.
