{"id":50493,"date":"2025-04-25T21:28:20","date_gmt":"2025-04-26T01:28:20","guid":{"rendered":"https:\/\/www.hancockhealth.org\/mayo-health-library\/intravenous-pyelogram\/"},"modified":"2026-02-04T11:41:58","modified_gmt":"2026-02-04T16:41:58","slug":"intravenous-pyelogram","status":"publish","type":"mayo","link":"https:\/\/hancockhealth.apgar.digital\/zh\/mayo-health-library\/intravenous-pyelogram\/","title":{"rendered":"Intravenous pyelogram"},"content":{"rendered":"<div class=\"container mx-auto   wordpress-block wordpress- core-\">\n<p>An intravenous pyelogram (PIE-uh-low-gram) is an X-ray exam of the urinary tract. Also called an excretory urogram, this exam allows your care team to see the parts of your urinary tract and how well they work.<\/p>\n<p>This test can help with diagnosis of problems such as kidney stones, enlarged prostate, urinary tract tumors or problems present at birth.<\/p>\n<p>During the test, an X-ray dye is injected into a vein in your arm. The dye flows into the kidneys, ureters and bladder, outlining each of these structures. X-ray pictures are taken at specific times during the exam.<\/p>\n<p>You may need an intravenous pyelogram if you have symptoms, such as back or side pain or blood in the urine, that could mean you have a problem in your urinary tract.<\/p>\n<p>This test can help your doctor diagnose certain conditions, such as:<\/p>\n<ul>\n<li>Kidney stones.<\/li>\n<li>Enlarged prostate.<\/li>\n<li>Urinary tract tumors.<\/li>\n<li>Problems with the structure of the kidneys, such as medullary sponge kidney. This condition is present at birth and affects the tiny tubes inside the kidneys.<\/li>\n<\/ul>\n<p>Intravenous pyelogram was often used to check for urinary tract problems. But newer imaging tests, including ultrasound exams and <abbr title=\"computerized tomography\">CT<\/abbr> scans, take less time and don&#8217;t need X-ray dye. These newer tests are now more common.<\/p>\n<p>But an intravenous pyelogram still can be a helpful tool for your health care provider to:<\/p>\n<ul>\n<li>Find problems with structures in the urinary tract.<\/li>\n<li>Detect kidney stones.<\/li>\n<li>Show a blockage, also called an obstruction, in the urinary tract.<\/li>\n<\/ul>\n<p>An intravenous pyelogram is generally safe. Complications are rare, but they can happen.<\/p>\n<p>Injection of X-ray dye can cause side effects such as:<\/p>\n<ul>\n<li>A feeling of warmth or flushing.<\/li>\n<li>A metallic taste in the mouth.<\/li>\n<li>Nausea.<\/li>\n<li>Itching.<\/li>\n<li>Hives.<\/li>\n<\/ul>\n<p>Rarely, severe reactions to the dye occur, including:<\/p>\n<ul>\n<li>Very low blood pressure.<\/li>\n<li>A sudden, full-body reaction that can lead to breathing problems and other life-threatening symptoms. This is called anaphylactic shock.<\/li>\n<li>Cardiac arrest, where the heart stops beating.<\/li>\n<\/ul>\n<p>During X-rays, you&#8217;re exposed to low levels of radiation. The amount of radiation you&#8217;re exposed to during an intravenous pyelogram is small. The risk of any damage to cells in your body is low.<\/p>\n<p>But if you&#8217;re pregnant or think that you may be pregnant, tell your provider before you have an intravenous pyelogram. Your provider may decide to use another imaging test.<\/p>\n<p>To prepare for the exam, tell your care team if you:<\/p>\n<ul>\n<li>Have any allergies, particularly to iodine.<\/li>\n<li>Are pregnant or think you might be pregnant.<\/li>\n<li>Have had a previous severe reaction to X-ray dyes.<\/li>\n<\/ul>\n<p>You may need to avoid eating and drinking for a certain amount of time before an intravenous pyelogram. Your doctor also may advise you to take a laxative the night before the exam.<\/p>\n<p>Before your exam, a member of your care team may:<\/p>\n<ul>\n<li>Ask you questions about your medical history.<\/li>\n<li>Check your blood pressure, pulse and body temperature.<\/li>\n<li>Ask you to change into a hospital gown and remove jewelry, eyeglasses and any metal objects that may obscure the X-ray images.<\/li>\n<li>Place an intravenous line into a vein in your arm through which the X-ray dye will be injected.<\/li>\n<li>Ask you to empty your bladder<\/li>\n<\/ul>\n<h3>During intravenous pyelogram<\/h3>\n<p>You lie on your back on an exam table. An X-ray machine is positioned over your abdomen. After that:<\/p>\n<ul>\n<li>An X-ray image is taken to show your urinary tract before any dye is injected.<\/li>\n<li>X-ray dye is injected through the intravenous line in your arm.<\/li>\n<li>X-ray images are taken at timed intervals as the dye flows through the kidneys to the ureters and into the bladder.<\/li>\n<li>Toward the end of the exam, you may be asked to urinate to empty your bladder again.<\/li>\n<li>After you return to the exam table, another X-ray image is taken of your empty bladder.<\/li>\n<\/ul>\n<h3>After intravenous pyelogram<\/h3>\n<p>When your exam is done, the intravenous line is removed from your arm. You can return to your usual activities.<\/p>\n<p>A doctor who specializes in reading X-rays reviews and interprets the images from your exam. The doctor is a radiologist. The radiologist sends a report to your health care provider. You&#8217;ll talk with your provider about the test results at a follow-up appointment.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>An intravenous pyelogram is an imaging exam that may be used to help diagnose urinary tract disorders. Learn what to expect during the exam.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","template":"","tags":[1686,1687,1682,1684],"class_list":["post-50493","mayo","type-mayo","status-publish","hentry","tag-anatomical-structure","tag-medical-procedure","tag-person-group-concept","tag-theme-of-focus","content_type-tests-procedures"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Intravenous pyelogram - Hancock Health<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"zh_HK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Intravenous pyelogram - Hancock Health\" \/>\n<meta property=\"og:description\" content=\"An intravenous pyelogram is an imaging exam that may be used to help diagnose urinary tract disorders. 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