Clinical Hub,Patient Education,Health and Nutrition Facts For You,Respiratory

Methacholine Challenge (6386)

Methacholine Challenge (6386) - Clinical Hub, Patient Education, Health and Nutrition Facts For You, Respiratory


Methacholine Challenge

Test date______________________ Test time______________________

This test will be performed in the Pulmonary Function Lab (Module B6/2), at the
University of Wisconsin Hospital and Clinics, 600 Highland Avenue. Please arrive
15 minutes prior to your appointment to allow time to complete the registration

Finding your way.
From valet or the parking ramp you will enter through the main Hospital Entrance.
Follow the brown pathway past the “D” elevator lobby to “Clinic Registration”.
Upon completing registration you will be directed to the Pulmonary Function Lab
“Check In” area.

If you are being seen at the American Family Children’s Hospital, please check in
at Registration on the 2nd Floor of AFCH. Registration will notify the Pulmonary
Function Lab Staff of your arrival.

What is a methacholine challenge?
This is a breathing test done to help your doctor see if you may have asthma. You
will be asked to breathe in a mist that contains methacholine. This mist may have
no effect on your breathing. You may cough or stay the same. You will be asked
to breathe increasing doses, with breathing tests done between each dose. The test
will take 30 to 90 minutes.

How do I prepare for this test?
ξ Do not exercise or eat a heavy meal for at least four hours before the test.
ξ Try to not have any caffeine, coffee, tea, cola drinks or chocolate.
ξ If you have or have had a recent cold, flu or other illness this test will need
to be scheduled two weeks following the end of your illness.
ξ Do not smoke on the day of the test.
ξ Tell your doctor if you are pregnant. This test is not recommended during
your pregnancy.

You will be asked to hold certain medicines before this test:
ξ Albuterol: Hold 6 hours
ξ Atrovent, Combivent: Hold 12 hours
ξ Singulair®: Hold: 36 hours
ξ Serevent®, Flovent®, or Advair®: Hold 36 hours
ξ Tiotropium, Spiriva®, or theophylline: Hold 48 hours

Note: If you are taking any beta blockers (such as atenolol, inderal,
metoprolol, or others) please tell your doctor.

How will I feel after the test?
You should feel fine after your test. If you do have any shortness of breath or
wheezing you may be given a few puffs of medicine from an albuterol inhaler to
get rid of the symptoms. Albuterol may, but does not always, cause one to feel
slightly shaky for a short time. You will be able to eat, drink, and keep your
normal routine. Your doctor will discuss your test results with you.

If you have any questions or concerns before the test, please call:
Pulmonary Function Lab, Monday-Friday, 8:00 am to 4:30 pm, (608) 263-7000.

Toll free 1-800-323-8942; ask for the Pulmonary Function Lab.

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 ©3/2015. University of Wisconsin Hospitals
and Clinics Authority. All rights reserved. Produced by the Department of Nursing. HF#6386.