Flow Volume Loop Spirometry


The flow volume loop is a graph showing the airflow at different lung volumes, and plots inspiratory and expiratory function separately. It enables a clear diagnosis to be made between fixed and variable upper and lower airway obstruction, and gives quantitative data for assessment and monitoring purposes. It is particularly helpful in measuring the degree of airway obstruction in patients with vocal cord paralysis.


The subject is asked to breathe out completely to empty air from the lungs as much as possible. The airflow at the mouth is then recorded during a maximum forced inspiration, followed by a maximum forced expiration. The results undergo computer analysis and are recorded.

Self-pay and insured patients are welcome

The Harley Street ENT Clinic has agreed contractual rates with most health insurance companies such as United Healthcare Global, Aviva, Allianz Worldwide Care, Bupa, CIGNA, Simplyhealth, Standard Life (PruHealth), Aetna International and WPA amongst others.

We also deal directly with the insurance companies saving you the trouble of paying first and then reclaiming.

Patients funding their own treatment will be provided with consultation fees and the potential cost of onward treatment at the time of booking their appointment.