Intravenous pyelography

Intravenous pyelography is an auxiliary diagnostic method for checking whether the kidney is normal. It is an intravenous injection of the developer, which flows through the kidneys with blood circulation, and develops the whole kidney, ureter, and bladder. Through this examination, many messages can be obtained, such as the size of the kidney, function, ureteral motility, bladder function, The location and size of the stone, the presence of the tumor, and the amount of residual urine, whether the prostate has a prostate on the bottom of the bladder to form a notch to determine the disease of the prostate hypertrophy. Observe the shape of the renal pelvis and ureter, and evaluate the renal filtration function with or without kidney and ureteral stones. Basic Information Specialist classification: urinary examination classification: urine / kidney function test Applicable gender: whether men and women apply fasting: not fasting Tips: Before the examination, the diet is light and alcohol is prohibited. Normal value Kidney excretion function, kidney shadow size, morphology, renal pelvis, renal pelvis with or without scars, deformation, etc. are normal. Clinical significance Abnormal results: In addition to understanding whether the urinary tract has functional or organic abnormalities, intravenous pyelography can also determine the excretory function of the kidney, the size and shape of the kidney, the presence or absence of scars and deformation of the renal pelvis, renal pelvis, etc. Pyelonephritis, renal tuberculosis, and kidney tumors also have certain significance. People in need of examination: those who are suspected of having abnormal urinary tract in the clinic, such as male young adults, children, recurrent female patients, urinary tract infections with bacteremia, renal colic, or history of kidney stones All should be used for intravenous pyelography. Precautions Contraindications before examination: The patient must be prepared for intestinal clearance. First of all, do not eat foods that are easy to produce gas, such as beans, hawthorn, etc. within 2 to 3 days before the inspection. It is advisable to take a slow walk in the morning or 1 to 2 hours before the examination. About cleaning the feces, 2 to 3 days before the inspection into the less residue food, 2 days before the examination, continuous administration of small doses of laxatives, such as castor oil 15 ~ 20 ml or senna leaves 6 ~ 9 grams of decoction orally, if still not effective , in the morning of the inspection, clean enema. Requirements for examination: When intravenous pyelography, the patient should limit drinking water, in order to reduce renal excretion, so that the concentration of contrast agent is relatively increased in the kidney. Practice has shown that 24-hour restrictions on drinking water can get better contrast. The recommended method is as follows: Check the water supply (including water content in beverages, milk, porridge, etc.) at around 8 am to 8 pm on the previous day. Drinking water should be completely banned from 8 pm to 2 pm (ie inspection day) at 8 am. The urine in the bladder needs to be emptied before the film is taken. Inspection process Intravenous pyelography is the injection of an organic iodine solution into the vein, and the renal parenchyma and the renal pelvis, ureter, and bladder are sequentially developed through blood circulation. Before angiography, iodine allergy test must be performed. For those who are negative, it is safer to inject iodine contrast agent. For patients with a history of iodine allergy, try not to use iodine contrast agents, and apply desensitization before angiography. Even in patients who are negative for the iodine allergy test, there is still the possibility of an allergic reaction. Therefore, it should be closely observed during the angiography. If it is slightly uncomfortable, it must be reported immediately to the medical staff present. Not suitable for the crowd Inappropriate population: acute infectious diseases, high fever, severe cardiovascular and liver diseases, acute urinary tract infections, pregnancy and puerperium are contraindications for intravenous urography. Adverse reactions and risks No related complications or hazards.