What
is hemodialysis?Hemodialysis is a treatment for kidney failure. Normally, the
kidneys work to filter blood and remove waste and excess salt and water. Kidney
failure, also called "end-stage kidney disease," is when the kidneys
stop working completely.
With
hemodialysis, a machine takes over the job of the kidneys. The machine pumps
blood out of the body, filters it, and returns it to the body People have
hemodialysis at least 3 times a week.
When
do I prepare for hemodialysis?You need to start preparing at least a few months before you
begin hemodialysis treatment.
How
do I prepare for hemodialysis?You prepare for hemodialysis by talking with your doctor and
making certain choices.
Before you
start hemodialysis, you need to choose where to have it:
●Most people can choose between having hemodialysis at a dialysis
center (in a hospital or clinic) or at home.
●If you plan to have hemodialysis at home, you need to get your
home ready. You will need a dialysis machine and supplies. You might need to
make changes to your home's plumbing or electricity.
You also
need to prepare your body for hemodialysis ahead of time. Your doctor will
create an "access." An access is a way for the blood to leave and
return to your body during hemodialysis. The best type of access is created
under the skin, usually in the lower part of the arm. Some types of access need
time to heal before the access can be used.
There are 3
different types of access:
●Arteriovenous ("AV") fistula – Most people get this
type of access . To make this access, a doctor does surgery to connect an
artery directly to a vein. An AV fistula needs to heal for 2 to 4 months or
more before it can be used for dialysis.
●AV graft – To make this access, a doctor uses a rubber tube to
connect an artery to a vein .An AV graft needs to heal for 2 weeks before it
can be used for dialysis.
●Central venous catheter – To make this access, a doctor puts a
tube in a large vein (usually in the neck) . This access is usually used only
short term or if people don't have any other access. It doesn't work as well as
an AV fistula or AV graft.
How
do I take care of my access?That depends on the type of access you have.
If you have
a central venous catheter:
●The dialysis nurse will cover the catheter site with a clean
dressing and bandage each time you have dialysis. Keep the dressing and bandage
in place until the next dialysis session.
●Keep the catheter covered. Your doctor or nurse will tell you if
it is safe for you to shower. Do not put the area underwater, since this can
cause an infection.
If you have
an AV fistula or graft:
●Wash it with soap and warm water every day and before each
dialysis treatment.
●Check it every day to make sure that it's working normally and
blood is flowing through it. When your access is working normally, you should
be able to feel a vibration (called a "thrill") over the area.
●Be careful with the arm that has the fistula or graft. It's
important that you not get an injury on that arm.
●Do not scratch or pick at your access.
●Do not wear tight clothes, a watch, or jewelry on the arm with
the access.
●Do not carry anything heavy like a bag, purse, or child on the
arm with the access.
●Do not sleep on the arm with the access.
●Do not let anyone start an IV (a thin tube that goes into a
vein), take blood from, or measure blood pressure in the arm with the access.
When
do I need to call the doctor?Call for advice if:
●You have symptoms of infection. These include a fever of 100.4°F
(38°C) or higher, chills, as well as redness, drainage, warmth, or pain over
the access.
●Your access arm or hand is pale, painful, or cold during
treatment.
●You have bleeding from your access site that does not stop after
20 minutes of gentle pressure.
●You don't feel a vibration – This could mean that your access
has stopped working or closed up.