his is commonly referred to as either an IVU or IVP. This investigation is indicated in patients with problems related to the urinary system. This examination will show the kidneys, ureters and bladder. An IVU is the appropriate examination for investigation of blood in the urine (haematuria) or loin pain in patients with kidney stones.
The preparation required depends on the situation. If the examination is needed urgently, then there is no preparation required. However, if it is done with an appointment, the patient will need to fast overnight and undergo bowel preparation. A bowel-cleansing agent to empty the bowels will be given at the time of appointment. If the patient has a history of asthma, allergy to iodine or history of reaction to iodinated contrast media, drugs or any other allergies, the radiologist or radiographer needs to be informed. At the time of the examination, the patient will lie on the X-ray table. A radiograph will be taken before contrast medium is injected into the patient’s vein. The radiologist will place a small needle into an arm or hand vein. When the contrast medium is injected, the patient may experience a warm feeling. This sensation disappears soon after injection. A few more radiographs are taken after which a compression band is placed over the lower abdomen to demonstrate the kidneys better. This may be a little uncomfortable but should not affect the patient’s breathing. A few more radiographs will be taken. Following release of the compression band, the patient is required to empty the bladder and another radiograph will be taken. Following the examination, there are no restrictions. There are no significant long-term effects of IVU. |