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Diagnostic Tests 2023

What é Excretory urography, Como é done and preparation

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What é Excretory urography, Como é done and preparation
What é Excretory urography, Como é done and preparation
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Excretory urography is a diagnostic test used to evaluate the structure and functioning of the urinary system, when there is a suspicion of renal masses, such as tumors, stones or genetic abnormalities, for example.

Usually, excretory urography is performed by the urologist in the case of men, or by the gynecologist in the case of women, especially when there are symptoms such as blood in the urine, pain in the urinary tract or frequent urinary infections.

Excretory urography uses an iodine contrast agent injected into the vein that reaches the urinary tract and facilitates its observation through x-ray.

urinary tract

X-ray: excretory urography

Price

The price of excretory urography is around 450 reais, however it can be done within the he alth plan for around 300 reais.

Preparation for excretory urography

Preparation for excretory urography should include an 8-hour fast and bowel cleansing with oral laxatives or enemas, as directed by the physician.

How is an excretory urography performed

Excretory urography is performed with the individual lying on his back and without anesthesia, and an abdominal x-ray is performed before the beginning of the exam. Then, an iodinated dye is injected into the vein, which is quickly eliminated in the urine, allowing the entire urinary tract to be seen from the kidneys to the urethra. For this, other x-rays are taken, one right after the contrast injection, another 5 minutes later and another two, 10 and 15 minutes later.

In addition, depending on the problem being studied, the doctor may order an x-ray before and after emptying the bladder.

During excretory urography, the patient may experience body heat, a good metallic taste, nausea, vomiting or allergy due to the use of contrast.

Risks of excretory urography

The risks of excretory urography are mainly related to allergic skin reactions caused by contrast injection. Thus, it is recommended to drink plenty of water to help quickly eliminate the contrast from the body and be aware of symptoms such as itching, hives, headache, cough and stuffy nose, for example.

Contraindications for excretory urography include patients with renal failure or hypersensitivity to contrast.

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