Anorectal Manometry Study for your child
What is an Anorectal Manometry Study
and what does it tell us? This test checks
the nerves and muscles in the anus and
rectum to see if they are working as they
This test checks your child’s muscle
pressures. It also tells us whether or not
your child’s muscles used for pooping are
working like they should.
This test is done when a child has had
problems with constipation or stool soiling.
Getting ready for the test: If this is the
only test being done your child may have a
Your child needs to have an empty rectum
for this test. We need to know that your
child had a bowel movement the morning of
the test. We need you to give your child a
bisacodyl suppository the night before the
test, or a saline enema the morning of the
test. Please call the week before your child’s
scheduled appointment 1-608-263-6420 for
When you come for the test we ask if your
child had a bowel movement. We ask
because if there is stool in the rectum the
tube may not slide into place for the test to
How is the study done? A tube the size of a
straw is passed into the rectum. The tube has
a balloon on the tip. The tube is connected to
a machine and computer.
This test will feels like having a rectal
temperature taken. In order to get the most
information about your child’s pooping
dynamics, your child needs to be able to
cooperate and follow these simple
ξ Rest, squeeze, bear down, push out.
ξ Telling us when feeling pressure
from the balloon.
If this test is not being done in the operating
room you may stay with your child the
ξ The tube and balloon is put into your
child’s rectum a short distance.
ξ The person doing the test will hold
the tube in place.
ξ During the study we record different
events including: pressures,
sensations, and muscle control.
ξ Small amounts of air are put into and
taken out of the balloon throughout
ξ Your child is asked questions and
given simple commands to do during
the test such as: rest, squeeze, bear
down, push out.
After the anorectal manometry part of the
test is done, your child may need to do
another type of test called a balloon
expulsion test. This test gives us information
about your child’s ability to pass a stool and
the coordination of the abdominal and pelvic
How do I find out the test results? The day
of the test early results may be discussed
with you during and after the test. It may
take up to 2 weeks for the doctor to review
the test recordings and have the final results.
Your will be called if the final results are
different from the early results. A letter will
be sent to your primary doctor and the
doctor who requested the test.
ALERT: Call your child’s doctor, nurse, or
GI center at (608) 263-6420 if you have any
questions or concerns. Call if your child has
a latex allergy or special health care needs
that were not covered by this information.
Your health care team may have given you this information as part of your care. If so, please use it and call if you
have any questions. If this information was not given to you as part of your care, please check with your doctor. This
is not medical advice. This is not to be used for diagnosis or treatment of any medical condition. Because each
person’s health needs are different, you should talk with your doctor or others on your health care team when using
this information. If you have an emergency, please call 911. Copyright © 05/2016. University of Wisconsin Hospitals
and Clinics Authority. All rights reserved. Produced by the Department of Nursing. HF#7904.