The purpose of a methacholine challenge test is to determine the amount of airway irritability of a patient.
The test usually takes about an hour.
Plan on arriving 15 minutes before your appointment for check-in. You will check in at the patient registration desk in the main lobby of the hospital.
A Respiratory Therapist specially trained in pulmonary function testing will perform your test. A Pulmonologist will interpret the results and provide your physician with a report.
Including but not limited to:
72 hours prior to test:
48 hours prior to test:
24 hours prior to test:
8 hours prior to test:
If you are taking a beta blocker drug (eg, atenolol or propranolol) please discuss this with your physician before scheduling your test as this medication may need to be held before testing.
You will be asked to inhale a mist that contains different concentrations of methacholine. The mist is produced by a device called a nebulizer and inhaled through a mouthpiece. Before the test begins, and after each period of inhalation, you will be asked to blow forcefully into a spirometer.
You may receive a copy of your test results by contacting the Health Information Department at 509-946-4611, ext 2017.
Tests must be ordered by a physician. To make an appointment call 509-946-4611 ext 2119.