Evaluating the Use of a Device Called Impulse Oscillometry in Participants With Vocal Cord Disorders or Asthma

The Study of Impulse Oscillometry in Inducible Laryngeal Obstruction

This study will determine if airway resistance to airflow and pressure, measured by Impulse Oscillometry, is impacted in subjects with vocal cord disorders and whether these measurements are different when compared to subjects with asthma.

Inclusion Criteria:

• Vaccinated against COVID-19 or testing negative for COVID-19 by viral PCT within 5 days before testing
• Willingness to perform breathing test
• Must be able to speak and understand English
• Documented diagnosis of asthma, documented clinical diagnosis of vocal cord dysfunction, or undergoing evaluation for vocal cord dysfunction

Exclusion Criteria:

• Unable to provide consent or perform oscillometry test