Care of Your Central Venous Catheter Part 4

M. D. Anderson Cancer Center

Now let's discuss the CVC dressing change.  Usually, the dressing change needs to be done once or twice a week depending on the type of dressing that you will use.  You should also change the dressing as soon as possible if it is wet either from perspiration or from bathing or if it becomes loose, soiled, or if there is any newly occurring discomfort under the dressing.  Once you're ready to begin, find a clean well-lighted place to work.  Your living room, dining room, or bedroom is best.  Avoid changing the dressing in the kitchen or bathroom due to the fact germs are usually located in these areas.  Make sure you have all your supplies then wash your hands briskly for a minimum of 15 seconds.  And then dry them with a clean towel.  Let's talk a minute about clean versus sterile.  Sterile means absolutely no bacteria or germs.  When you wash your hands with soap and rinse with running water, your hands are clean but not sterile.  You still have germs on your skin that live there normally.  You will be using sterile supplies in the dressing change procedure and learning what is called sterile technique using sterile gloves on both your hands.  Now let's look at removing the old dressing but first, a word of caution.  Never use scissors to remove the tape or dressing from your catheter.  The risk for cutting the catheter is high which could result in complications and the catheter will have to be removed.  Place a linen protector or clean towel under your arm or shoulder.  Wear non-sterile gloves for this step.  These gloves come in a box much like tissue paper.  Carefully remove the old dressing.  It may help to remove the tape if an alcohol or adhesive remover wipe is used to wet the bottom piece of tape then use the wipe to help release the adhesive on the bandage itself from the skin.  Start at the bottom of the dressing removing the base tape.

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When you get to the catheter extension, push down the tubing with one finger as you pull up on the tape.

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And then work around the outer edges.  As you move up to the hub and sutures, push down on them with one or two fingers to hold them in place while removing the rest of the bandage.  Use one hand to push the skin down and the other hand to pull up the dressing toward the center.  This will keep you from pulling too much on the patient's skin.

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Now examine the insertion site well.  Look for redness, swelling, pain or discharge on the skin around the catheter insertion site.  Next, check the stitches.  The stitches hold the catheter in place.  There are usually three.  The site stitch and two wing stitches.  All three must be intact and in the skin.  If you see any problem, finish changing the dressing and then call your doctor or infusion therapy nurse.  Now, discard your gloves and wash your hands again.  Or use the antiseptic hand gel provided in the dressing kit.  Peel the package open, pick up the paper wrapped kit and place the plastic container to the side.  You can use this as a trash container. Touching only the outside corner of the wrapper, open it away from you first.  Use the antiseptic hand gel provided in the dressing kit.

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Now pick up the sterile glove package and place it away from the rest of the kit.  Then continue opening each corner of the wrapper using only the outside corner edges of the wrapper and pull all four corners away.  Remember that you cannot touch anything inside the sterile field with your clean bare hands.  If you forget and touch, you have contaminated the contents and should dispose of the kit and open a new one.  Now pick up the sterile glove package.  Keep this package away from the rest of the kit and carefully open up the folded flaps of the package.  The gloves are packaged with the inside cuff turned out.  So you can pick up the folded edge of the glove and still keep it sterile.  Pick one glove up by the cuff, lift it clear of the table and hold it out away from your chest.  Insert your dominant hand into the glove.  Next, with the sterile glove hand, slip your fingers under the cuff of the second glove and slip your other hand into the glove.  Be careful not to touch anything outside the sterile field of the dressing kit with your gloved hands.  If this occurs change your gloves right away with a new pair of sterile gloves.  This includes not touching the patient's skin or the catheter itself with your sterile gloves.  Before we continue, let's take a look at what's inside the dressing kit.  We'll find two Q-tips, a package of antiseptic swabs, extra tape, label, scissors, a protective skin barrier film swab, and a dressing bandage.  There are two types of dressing kits.  One kit will have a clear bandage with an attached gel antiseptic pad.  The other kit has a separate antiseptic gauze disc pad.  The bandage is not included in this kit.  Most patients will use the clear dressing which can stay on for a week at a time.  If this isn't tolerated for any reason such as perfuse sweating, the patient will be switched by the infusion therapy team to the gauze dressing.  This type of dressing must be changed twice weekly.  Now to continue, pick up the antiseptic solution package, use the scissors to cut off the top end of the package.  Now insert the two Q-tips into the pack.  Clean with the three large chlorhexidine swab sticks first.  Pull out one swab stick and start scrubbing at the insertion site.  Move outward to include the hub and stitched wings.  And then continue scrubbing in a back and forth motion outward in widening circles.  Be sure and clean all the skin and catheter that lies under the dressing.

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Discard the swab when an area of at least 3 to 4 inches out from either side of the center of the catheter has been cleaned.  Repeat using all three swabs.

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Next, use the two Q-tips to better clean the hard to reach areas of the insertion site, the stitches and under the catheter wings.

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Once all the swabs and Q-tips are used, you must wait at least 2 full minutes to allow the site to air dry.  This tip is very important for several reasons.  It is during the drying period that the antiseptic kills the germs on the skin.  It also allows the antiseptic to stick to the skin cells giving longer lasting protection against infection.  Also if a dressing is placed over the antiseptic while it is wet it can cause skin irritation and redness.  Now, pick up the pack of no-sting skin barrier which is used to help protect the skin from the adhesive, cut open this pack with the scissors provided and swab the entire edges of the cleaned area.

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Do not wipe the insertion site area so the antimicrobial pad included in the bandage dressing will be effective in killing germs on the skin for the next 7 days.

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Allow about 15 seconds to dry.  The next step is to apply the dressing cover.  Most patients will use the clear dressing.  Some will need the gauze dressing.  Before placing either dressing if your catheter is in your arm, extend your arm fully out straight.  If your catheter is under your collar bone, turn your head to the opposite side and place your hand on your hip pulling your shoulder back.  These positions will stretch your skin out and keep your dressing from being too tight and pinching your skin. For the clear transparent dressing, first remove and discard gloves.  Pick up the clear dressing.  Peel the plastic backing off and hold the edges of the dressing.  Center the antimicrobial gel pad over the insertion site and center the V-cutout over the extensions.  Do not stretch the dressing or it will pull on the skin.  Press the dressing down onto the skin, starting at the center and then move outward toward the edges.  Continue peeling the paper off and pressing down the edges of the dressing.

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Pull the piece of tape located on the bandage with the V cut out of it.  You can trim the V larger if needed.  Slip this tape up under the catheter extension and slightly overlap the dressing.  Press down onto dressing.

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Write on the label provided the date, CVC, and your initials.

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Place along the lower edge of your dressing and cover it with a strip of clear plastic tape.

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For the twice weekly gauze dressing, keep the sterile gloves on.  Peel open the small round antimicrobial disc.  Place this disc with the white side down and the blue tinted shiny side up around the catheter insertion site.  This doesn't stick to the skin, so be careful not to move.  You can also use the scissors provided to cut the opening on the disc larger for larger catheters.  Remove and discard the gloves.  Pick up the gauze dressing and remove the paper backing.  Center the dressing over the insertion site and press the center down onto the skin.  Continue peeling the paper off and pressing down the edges of the dressing.

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Pull the piece of tape located on the bandage with the V cut out of it.  You can trim the V larger if needed.

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Slip this tape up under the catheter extension and slightly over lap the dressing.  Press down.  Write on the label provided the date, CVC, and your initials.

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Place along the lower edge of your dressing and cover it with a strip of clear plastic tape.  You are done.  Make sure the dressing kit you receive when picking up your supplies is the one your infusion therapy nurse has recommended for you.  [Background music]  Let's review some of the most important points.  Before changing your dressing, make sure you have all the supplies you need.  You will need to change your dressing once or twice a week depending on the type of bandage dressing you use.  In addition, you should change the dressing anytime it becomes wet, soiled, loose, or if there is a new discomfort under the dressing.  Change the injection cap every week when not in use.  Flush injections are usually given daily or after catheter use.  Keep your dressing dry.  Protect the dressing with plastic wrap when bathing and never submerge your CVC under water.  After placement, some patients may have bruising or soreness for a few days, this is normal.  However, notify your doctor if you develop any of the following problems later.  If the site becomes infected, in other words if there is redness, pain, or drainage, if you have a fever of 101 degrees or more, if there is a new tenderness anywhere around the area of the catheter, if there are loose or missing stitches, if the catheter is leaking or if it is clogged, if you notice swelling or skin discoloration on your neck, chest, or arm where the catheter is located.  You should also remember that you are not alone.  Your health care team is always here to help.  You can also view this tape as often as you like and you have the patient guide to refer to at home.  You can also purchase this video from the Learning Center.

 

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