We offer Methacholine Challenge Testing in Houston. Which is a diagnostic procedure used primarily to evaluate airway hyperreactivity, which is a key feature in conditions such as asthma. This test helps healthcare providers determine how sensitive the airways are to various stimuli, aiding in the diagnosis and management of respiratory conditions.

Purpose of the Test

The main objectives of Methacholine Challenge Testing include:

• Diagnosing Asthma: It helps confirm asthma in patients with unexplained respiratory symptoms.
• Assessing Severity: The test can indicate the severity of airway hyperreactivity.
• Monitoring Treatment Efficacy: It can be used to evaluate the effectiveness of asthma medications over time.

Procedure

1. Preparation: Patients are advised to avoid certain medications, such as bronchodilators, for a specified period before the test.
2. Baseline Assessment: Initial lung function is measured using spirometry to establish a baseline.
3. Administration of Methacholine: The patient inhales increasing doses of methacholine aerosol.
4. Monitoring Response: Lung function is re-evaluated after each dose to assess airway response.
5. Interpretation: A significant decrease in lung function indicates hyperreactivity.