This information will help you prepare to have your nephrostomy catheter placed at Memorial Sloan Kettering (MSK) and teach you how to care for it at home. Show
About Your Urinary SystemYour urinary system consists of your kidneys, ureters, bladder, and urethra. Your kidneys produce urine that collects in the renal pelvis at the top of your ureters (see Figure 1). Your ureters carry urine from the kidneys to the bladder. Figure 1. Your kidney, renal pelvis, and ureter The urine collects in your bladder until you need to urinate. The urine then passes out of your body through the urethra. In women, the urethra is a very short structure located in front of the vagina (see Figure 2). In men, the urethra is much longer and passes through the prostate gland and the penis (see Figure 3). Figure 2 (left) and Figure 3 (right). Female (left) and male urinary systems Figure 4. Nephrostomy catheter Back to topAbout Your Nephrostomy CatheterYou will have a nephrostomy catheter to relieve a blockage in your urinary system. The catheter will be inserted through your skin into your kidneys. It will allow urine to drain into a bag outside your body. In some cases, it may also drain into your bladder. Types of drainage cathetersYour urinary system can be drained with a catheter in 2 ways. Your doctor will discuss this with you before your procedure. Nephrostomy catheterA nephrostomy catheter is placed if your doctor cannot bypass (go around) the blockage or if your ureter has been injured. It passes through your skin and into your renal pelvis. One end of the catheter forms a loop in this area. The other end of the catheter will extend from your body (see Figure 4). It will be attached to an external drainage bag strapped to your leg. Nephro-ureterostomy catheterFigure 5. Nephro-ureterostomy catheter A nephro-ureterostomy catheter is placed if the blockage in your urinary system can be bypassed. It passes through your skin and into the renal pelvis. It is guided across the area of blockage down to your bladder. One end of the catheter will be in the bladder. The other end of the catheter will extend from your body (see Figure 5). It will be attached to an external drainage bag strapped to your leg. This catheter lets urine flow in 2 directions. It can go out to the drainage bag or into the bladder. Back to topHaving Your Nephrostomy Catheter PlacedYour nephrostomy catheter will be inserted by an interventional radiologist. An interventional radiologist is a doctor who specializes in image-guided procedures. The procedure usually takes less than 1 hour. Your interventional radiologist will explain the procedure to you and give you time to ask any questions before you sign a consent form. After the procedure, your catheter will be attached to a bag to collect the drainage. Sometimes, nephrostomy catheters are placed urgently when you are sick. In other cases, though, you will be scheduled to come into the hospital for the procedure. If this is the case, follow the guidelines below. Back to topBefore Your ProcedureAsk About Your MedicationsYou may need to stop taking some of your medications before your procedure. Talk with your healthcare provider about which medications are safe for you to stop taking. We’ve included some common examples below. Blood ThinnersBlood thinners are medications that affect the way your blood clots. If you take blood thinners, ask the healthcare provider performing your procedure what to do. They may recommend you stop taking the medication. This will depend on the type of procedure you’re having and the reason you’re taking blood thinners. Examples of blood thinners include:
Do not stop taking your blood thinner medication without talking with a member of your care team. Read Common Medications Containing Aspirin, Other Nonsteroidal Anti-inflammatory Drugs (NSAIDs), or Vitamin E. It has information about medications you’ll need to avoid before your procedure. It also tells you what medications you can take instead. Medications for DiabetesBefore your procedure, talk with the healthcare provider who prescribes your insulin or other medications for diabetes. They may need to change the dose of medications you take for diabetes. Ask them what you should do the morning of your procedure. Your care team will check your blood sugar levels during your procedure. Diuretics (Water Pills)A diuretic is a medication that makes you urinate (pee) more often. Hydrochlorothiazide (Microzide®) and furosemide (Lasix®) are common diuretics. If you take any diuretics, ask the healthcare provider doing your procedure what to do. You may need to stop taking them the day of your procedure. You’ll be having a computer tomography (CT) scan with IV (intravenous) contrast. If you’ve had an allergic reaction to IV contrast in the past, tell your healthcare provider. Remove Devices From Your SkinTalk with the healthcare provider who manages your diabetes care before your appointment if you wear:
The manufacturer recommends you remove these devices from your skin before your scan or procedure. Your healthcare provider will tell you how to manage your glucose while your device is off. They can also help you schedule your appointment closer to the date you need to change your device. Make sure you have an extra device with you to put on after your scan or procedure. Arrange for Someone to Take You HomeYou must have a responsible care partner take you home after your procedure. A responsible care partner is someone who can help you get home safely. They should be able to contact your care team if they have any concerns. Make sure to plan this before the day of your procedure. If you don’t have a responsible care partner to take you home, call one of the agencies below. They’ll send someone to go home with you. There’s a charge for this service, and you’ll need to provide transportation. It’s OK to use a taxi or car service, but you still need a responsible care partner with you. Tell Us if You’re SickIf you get sick (including having a fever, cold, sore throat, or flu) before your procedure, call your IR doctor. You can reach them Monday through Friday from 9 a.m. to 5 p.m. After 5 p.m., during the weekend, and on holidays, call 212-639-2000 and ask for the Interventional Radiology fellow on call. Note the Time of Your AppointmentA staff member from Interventional Radiology will call you 2 business days (Monday through Friday) before your procedure. If your procedure is scheduled on a Monday, they’ll call you on the Thursday before. They’ll tell you what time to arrive at the hospital for your procedure and remind you where to go. If you don’t get a call by noon on the business day before your procedure, call 646-677-7001. If you need to cancel your procedure for any reason, call the healthcare provider who scheduled it for you. Back to topThe Day Before Your ProcedureInstructions for Eating Before Your Procedure The Day of Your ProcedureInstructions for Drinking Before Your Procedure You can drink a total of 12 ounces of water between midnight and 2 hours before your scheduled arrival time. Do not drink anything else. Do not drink anything starting 2 hours before your scheduled arrival time. This includes water. Things to remember
What to bring with you
What to expectOnce you arrive at the hospital, doctors, nurses, and other staff members will ask you to state and spell your name and date of birth many times. This is for your safety. People with the same or similar names may be having procedures on the same day. Your nurse will put in an intravenous (IV) line in your hand or arm. You will be brought into the procedure room. You will receive medication through your IV to make you feel drowsy. The area where the catheter is inserted will be numbed with an injection of anesthetic. Your doctor will use fluoroscopy (real time x-rays), a CT scan, or ultrasound to help place the catheter. They may also give you in an injection of IV contrast. The contrast makes it easier to see the area. Your doctor will then know what type of drainage is possible and will place the catheter. After your nephrostomy catheter is inserted, a silicone disk will be placed on the catheter (see Figure 7) to secure it to your skin. This disk is attached to your skin with an adhesive dressing. You may also have a suture (stitch) holding the catheter in place. Figure 7. Silicone disk over catheter Back to topAfter Your ProcedureAfter your procedure, you will be brought to the recovery room. You will need to stay in bed until the sedation has worn off. You will then return to your hospital room or go home with your caregiver. Tell your nurse if you have:
About your catheterYou will have a black mark on the catheter above the disk (see Figure 7). Your nurse will show it to you. This mark should always be the same distance from the top of the disk. If it changes, this means that the catheter has moved. You must call Interventional Radiology so someone there can check it. The end of the catheter that is outside your body will be attached to a leg drainage bag (see Figure 8). Urine will begin flowing into the bag right after your catheter placement procedure. It is possible that the urine will appear bloody at first. Your nurse will check the drainage to make sure it improves. Figure 8. Catheter with leg drainage bag CathGrip® is a device that helps to make sure your catheter does not come out of your body, if you accidentally pull on it. It is important that you keep the bag strapped to your leg. That prevents the catheter from accidentally pulling out. The bag can fill up with urine and become heavy. If the bag falls, it can pull the catheter out. Check the urine in the leg bag frequently. It should be flowing freely into the bag. Call your doctor is your urine is bloody, foul-smelling, or cloudy. ShoweringYou may take showers but you will need to keep your dressing dry. A hand-held shower can help direct the water away from the dressing. You will also need to cover your dressing. If the dressing gets wet, you will need to change it. Wet dressings are a common cause of skin problems. Before you shower, remove the belt and empty the drainage bag. Tape the drainage bag to your body near the catheter or use a strap to attach it to your waist. Tape plastic wrap or a gallon sized bag over the dressing to keep it dry. You can also use AquaGuard, which is a one-time use waterproof cover to protect your dressing. When you shower, make sure that that your catheter is covered to prevent it from getting wet. Applying the AquaGuardFigure 9. AquaGuard for showering
Don’t let the tape on the AquaGuard touch the dressing. It can lift your dressing when you remove the AquaGuard after showering. Back to topCaring For Your Nephrostomy CatheterYour nurse will teach you how to care for the catheter. Use this resource at home to remind you of what you learned. At first, a visiting nurse will come to your home to help you care for the catheter. It won’t be long before you feel confident doing it yourself. Every day you will:
Your dressing and your drainage bag will need to be changed once a week. You will also need to change the dressing if it becomes loose, wet, or soiled. If a wet dressing is left against your skin, it may cause your skin to become irritated and sore. This makes skin breakdown more likely. You will need help changing the dressing and drainage equipment. You will need a mirror to be able to check your catheter. Checking your nephrostomy catheterYou must check your catheter at least once a day. You can use a hand-held or a full length mirror to do this.
If you see a problem, call your nurse or doctor. The contact information is at the end of this resource. Emptying the urine from the bagEmpty the urine bag in the bathroom when it’s half-full. That can be every 2 to 3 hours during the day for some people.
Changing your Uresil dressingThe Uresil dressing system is designed to help keep your catheter from moving out of your kidney. The disk is attached to your catheter. The dressing covers the disk, which keeps the catheter in place. The dressing, the ureteral connecting tube, and the leg bag will need to be changed once a week. The dressing may need to be changed more often if it gets wet, soiled, pulls away from the skin, or loosens. Although you will need the assistance of your helper to do the dressing and equipment changes, you can assemble the equipment yourself. Below is a video demonstrating how to change your Uresil dressing.
Changing the leg drainage bag and ureteral connecting tube
Changing your CathGripThe CathGrip will prevent pulling, tension, or kinking of the drainage catheter and tubing. You will need your CathGrip kit for this part.
Connecting to a night bagYour nurse will show you how to connect your leg bag to a night bag. The night bag holds a large volume so you will not have to empty your bag while you sleep.
Never connect the night bag to the ureteral connecting tubing. The weight of the leg bag can pull the catheter out of your body if it falls. Cleaning the Night BagYou may reuse the night drainage bag after cleaning it properly. To clean the equipment:
Activities While You Have Your Nephrostomy Catheter
When to Call Your Healthcare ProviderCall your healthcare provider if you have any of the following:
Ordering SuppliesYour healthcare provider will give you enough supplies to last for 2 weeks. When you need more supplies, you can either order them through your visiting nurse service or we’ll arrange for the supply company to send them to you. The items you need and their supply numbers are listed below.
What is the tube that leads from the bladder and discharges the urine externally?Urethra. This tube allows urine to pass outside the body. The brain signals the bladder muscles to tighten, which squeezes urine out of the bladder. At the same time, the brain signals the sphincter muscles to relax to let urine exit the bladder through the urethra.
What is the tube from the bladder called?A urinary catheter is a flexible tube used to empty the bladder and collect urine in a drainage bag. Urinary catheters are usually inserted by a doctor or nurse.
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