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MUGA SCANS
A MUGA scan shows the doctors how well your heart is functioning at
pumping out the blood. Since some types of chemos are hard on your heart,
it is important for the doctors to check this function to ensure that
your heart is working well especially if you have a previous cardiac
history or may be receiving herceptin. There are 2 different ways to
do this test depending on your hospital and their physicians. When you
arrive at the hospital, the nurse will set up a cannula in your vein.
A tube of blood may be taken and the nurse will work with the blood
for approximately 30 minutes and then will inject it back into you.
Your blood is prepared to have a radioactive tracer attached to the
red cells in your blood sample. Once the radioactive tracer has been
attached to your red cells, the cells are reinjected and pictures are
taken of your heart. The whole test usually takes approximately 1 hour
and you won’t feel any different.
Alternatively, you may have the cannula set up by the nurse and then
receive 2 different injections 30 minutes apart. The first injection
prepares your red cells in your blood and allows the radioactive tracer
to attach. The second injection is the radioactive tracer which when
attached to your red cells in your blood allows us to measure how well
your heart is pumping out the blood. The whole test takes approximately
one hour and you get the same results independent of the method used
to label the blood. There are no side effects and you won’t feel any
different when you leave after having this test done. A report will
be sent to your doctor usually in 7-10 days.