Fandom

House Wiki

Methacholine challenge

6,718pages on
this wiki
Add New Page
Talk0 Share

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.

A methacholine challenge or bronchial challenge test is a test for asthma and other bronchial diseases. The patient is given methacholine or histamines to inhale in a fine powdered form. The drugs encourage the bronchial passages to constrict. The patient is then put through a series of tests of their lung capacity. Eventually, the patient will have a reduction in lung capacity, but in asthmatic patients this will happen at lower doses of the drugs.

The test is not always reliable. Other conditions, such as those that cause coughing, will interfere with the lung capacity tests. Coughing can also be caused by the test itself. The patient may also just be reacting to environmental factors, such as smoke, which also temporarily constrict the airways.

Bronchial challenge test at Wikipedia

Also on Fandom

Random Wiki