The urine then flows into the tubes ureters that lead to the bladder. X-ray pictures are taken several minutes apart as the dye goes through the urinary tract. Each picture is developed right away. Sometimes more pictures are taken based on earlier ones. You may be asked to turn from side to side or to hold several different positions so the radiologist can take a complete series of X-rays. During IVP, a compression device may wrapped around your belly to keep the dye in the kidneys.
The most common compression device is a wide belt containing two inflated balloons that push in on either side of your belly to block the passage of dye through the ureters. If you have recently had abdominal surgery or have an abdominal disorder, the band will not be used. A special type of X-ray technique called fluoroscopy may also be used during IVP.
During fluoroscopy, a continuous X-ray beam is used to display a moving image on a video monitor. After the test is over, you will need to drink plenty of liquids to help flush the contrast material out of your body. You will feel no discomfort from the X-rays. The X-ray table may feel hard and the room may be cool. You may find that the positions you need to hold are uncomfortable.
You will feel a brief sting when the needle is inserted into the vein in your arm. When the contrast material is injected, you may feel slight burning in your arm and flushing throughout your body. You may also notice a salty or metallic taste in your mouth. The compression belt may feel tight. If it is painful, tell the technologist and ask that it be readjusted. You may feel slightly weak, nauseated, or light-headed for a short time after the test.
There is always a slight chance of damage to cells or tissue from radiation, including the low levels of radiation used for this test. But the chance of damage from the X-rays is usually very low compared with the benefits of the test. There is slight risk of having an allergic reaction to the contrast material. The reaction can be mild itching, rash or severe trouble breathing or sudden shock. Death resulting from an allergic reaction is very rare.
Most reactions can be controlled with medicine. Be sure to tell your doctor if you have asthma or allergies of any kind, such as hay fever, iodine allergy, bee stings, or food allergies.
People with certain conditions such as diabetes, multiple myeloma , chronic kidney disease, sickle cell disease , or pheochromocytoma have increased chances of having sudden kidney failure from IVP. Older adults and people taking medicines that affect the kidney may also have increased chances for problems after an IVP. Your doctor may be able to talk to you about some results right away. Complete results are usually ready in 1 to 2 days.
In men, the prostate gland looks normal in position, size, and shape. If you are pregnant, even this small amount of radiation could harm a developing fetus. However, such complications are rare.
After the IVP is over, the time it takes for the pictures to be available varies depending on the lab. When they are all ready, a radiologist will review them. Your doctor will be sent a report. Generally, it takes a day or two to get your results. Caliectasis refers to having dilated and swollen calyces in your kidneys.
Obstructive uropathy happens when your urine flow reverses direction due to a blockage in one of your ureters. A retrograde pyelogram is a procedure that gives your doctor a better view of your urinary system. Learn about the risks and what you need to do to…. Learn more here. When you have chronic kidney disease CKD , its impact on your kidney function can contribute to a host of other health issues.
Here's what to know. Expert Dennis Moledina, a Yale Medicine nephrologist, answers top questions about anemia related to chronic kidney disease, and how to best manage it. COVID has been shown to harm the kidneys in some cases and may lead to serious illness in those with existing kidney disease.
In some cases, a CT study doesn't need to use a contrast agent. It can often provide better information than an IVP. However, it does result in an increased amount of radiation. An x-ray, also called a "scout" film, will be taken of the abdomen and pelvis before the contrast agent is used. This helps to make sure that the x-ray machine is set for your size, and that there are no small stones present.
The contrast agent is then injected into your vein. A series of x-rays are taken to see the contrast material filter through your kidneys. Once the agent has moved through the kidneys, it will pass down the ureters into the bladder. X-rays are taken throughout to follow the path of the contrast agent. The x-rays will be reviewed for evidence of tumors, cysts, stones, or other structural and functional abnormalities. Request an Appointment at Mayo Clinic.
Share on: Facebook Twitter. Show references Intravenous pyelogram IVP. Radiological Society of North America. Accessed May 7, Skorecki K, et al. Diagnostic kidney imaging. Philadelphia, Pa. O'Neill WC. Radiologic assessment of renal disease.
What is an intravenous pyelogram IVP?
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