catheterization

Urinary catheterization is an auxiliary examination method used to check whether urinary function is normal. Catheterization, often used for urinary retention, retention of urine for bacterial culture, accurate recording of urine output, understanding of oliguria or anuria, determination of residual urine volume, bladder volume and bladder pressure, injection of contrast agent, bladder irrigation , to detect the presence or absence of urethral stricture and preoperative preparation of pelvic organs. Basic Information Specialist classification: urinary examination classification: urine / kidney function test Applicable gender: whether men and women apply fasting: not fasting Tips: Maintain normal sleep and diet. Normal value The amount of urine flowing out is the amount of urine that a normal person urinates. Normal urine volume is 20ml~30ml per hour. Clinical significance Abnormal results: The amount of urine flowing out of the normal person's urine output. People who need to be examined: patients with urinary incontinence. Precautions Taboo before check: Maintain normal sleep and diet. Requirements for inspection: 1. Strict aseptic operation to prevent urinary tract infections. 2. Insert the urethra to be gentle, so as not to damage the urethra mucosa. If there is a blocking feeling when inserting, you can change the direction and then insert the 2cm when the urine flows out. Do not be too deep or too shallow, especially avoid twitching the catheter repeatedly. 3. Choose the thickness of the catheter should be appropriate, for children or suspected urethral stricture, the urinary catheter should be fine. 4. For patients with overfilled bladder, urination should be slow to avoid sudden decompression causing bleeding or syncope. 5. When measuring residual urine, patients with sputum urinate first, then catheterize. The amount of residual urine is generally 5-10m. If it exceeds 100m1, catheterization should be indwelled. 6. When indwelling catheterization, should always check the fixation of the urinary catheter, whether it is prolapsed, if necessary, flush the bladder once a day with no medicinal solution; replace the urinary catheter once every 5-7 days, and let the urethra relax before reinsertion Re-insert it for a few hours. Inspection process 1. The patient is lying on his back, his legs are bent out and his knees are lapped or lining. The patient first washed the vulva with soapy liquid; the male patient opened the foreskin and cleaned. 2. Disinfect the urethral opening and the genital area from the inside to the outside with 2% red mercury or 0.1% benzalkonium or 0.1% chlorhexidine solution. After the genital area covered with sterile hole towel, the male wrapped the penis with a disinfectant towel to expose the urethra. 3. The surgeon wears sterile gloves to stand on the right side of the patient. The left hand holds the thumb and the two fingers hold the penis. The woman separates the labia minora from the urethra. The right hand is slowly inserted into the urethra with a catheter with sterile lubricating oil. The outer end of the catheter is clamped with a hemostat and the opening is placed in a sterile bending plate. Males enter about 15-20 cm, women about 6-8 cm, loosen the hemostatic forceps, and the urine can flow out. 4. Need to be a bacterial culture, take the middle urine and send it in a sterile test tube. 5. After the catheter is clamped, the catheter is slowly pulled out to prevent the urine from flowing out of the tube. If indwelling catheterization is required, the catheter is fixed with tape to prevent prolapse, the outer end is clamped with a hemostatic forceps, the mouth of the tube is wrapped with sterile gauze to prevent urine from escaping and contaminating; Plastic bag of bacteria, hanging on the side of the bed. Not suitable for the crowd Inappropriate people: those with urinary tract infections. Adverse reactions and risks No related complications or hazards.