Plethysmography

Lung plethysmography is more accurate than spirometry and is based on Boyle’s Law, a scientific principle that describes the relationship between the pressure and volume of a gas. You’ll sit in a small, airtight chamber with a nose clip and be asked to breathe or pant against a mouthpiece when it’s both opened and closed. This will provide important measurements, including total lung capacity (TLC), functional residual capacity (FRC) and residual volume (RV).

What is plethysmography used for?

Plethysmography is used to detect and diagnose lung/airway diseases, such as:

  1. Asthma

  2. Chronic obstructive pulmonary disease

  3. Pulmonary fibrosis

Plethysmography also offers the following capabilities:

  1. Evaluating your lung function in relation to expected performance, past test results, or demographic standards.

  2. Assessing the impact of chronic lung diseases on your respiratory health.

  3. Identifying early alterations in lung function that may necessitate treatment adjustments.

  4. Detecting potential lung damage from substances in your living or workplace.

  5. Gauging your suitability for medical procedures, including surgery.