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.
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Dr Gerald Brookes is regularly consulted by the media for his expertise. He has been interviewed by the Daily Mail, featured on Channel 4's Embarassing Bodies, looked after The X-Factor contestants and recently, appeared on BBC Radio 2 with Chris Evans.
Media: Channel 4
Adele was experiencing dizziness and balance problems so severe that she could barely function. In desperation, after consulting her GP to no avail, she got in touch with Channel 4’s Embarrassing Bodies team. The show then contacted Dr Gerald Brookes, who was able to diagnose her rare condition as Basilar Migraine.
Catherine Eade was having dizzy spells and balance problems. When inexplicably she started suffering memory loss too, she consulted Dr Gerald Brookes at The Harley Street ENT Clinic who correctly diagnosed her problem as benign paroxysmal positional vertigo (BPPV).
The Harley Street ENT Clinic looked after The X-Factor TV show contestants for many seasons. At the end of the 2010 season, Dr Gerald Brookes was interviewed by Nicky Broyd of Boots WebMD on the perils of high pressure performing.