Urinary Catheterization of the Male Cat

College of Veterinary Medicine, Small Animal DX & Therapeutic Techniques, Feb.02.2009

cat catheter Several styles of urinary catheters are available. The catheter identified by the letter (a) is a flexible rubber feeding tube. A 3 1/2 Fr size is used to catheterize a male cat. Because it is flexible it is more difficult to pass than the other two catheters that are pictured. It is longer than needed to reach the urinary bladder. (b) is an open-ended polypropylene catheter. (c) is a close-ended polypropylene catheter. Both (b) and (c) are 3 1/2 Fr.
cat catheter To prevent urethral trauma, the penis should be extruded from the prepuce and held parallel to the vertebral column. The cat's head is to your right.

Passing a urinary catheter in a male cat requires two people. One person exteriorizes the penis and the second person passes the catheter. A finger tab cut from the sterile package that the catheter was wrapped in, can be used to manipulate the catheter without touching it. (If this is not clear, see urinary catheterization of the dog from the selection menu) The catheter should be lubricated with aqueous lubricant. The penis and prepuce should be cleansed with antiseptic solution. In the slide on the video screen, the person passing the catheter has a syringe filled with saline that is slowly being infused to dilate the urethra ahead of the catheter. If you are passing the catheter to obtain a urine sample, do not infuse fluid during passage of the catheter. The infusion technique is used to dislodge debris from the urethra of an obstructed cat.