Reduced FEV1
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
This is the amount of air that you can forcibly blow out in one second, measured in litres. Along with FVC it is considered one of the primary indicators of lung function.It is decreased in obstructive lung disease in proportion to severity of obstruction. It is even reduced in severe restrictive disease of lung.
Differential diagnosis
Common causes
Organ system based
| Cardiovascular | No underlying causes |
| Chemical / poisoning | No underlying causes |
| Dermatologic | No underlying causes |
| Drug Side Effect | No underlying causes |
| Ear Nose Throat | Glottic strictures, Laryngeal lesions, Tracheomalacia |
| Endocrine | Goiter |
| Environmental | No underlying causes |
| Gastroenterologic | Ascites |
| Genetic | Laryngomalacia, Trachea ring abnormality |
| Hematologic | No underlying causes |
| Iatrogenic | Post intubation strictures |
| Infectious Disease | Bronchiolitis, Bronchiolitis obliterans, Laryngotracheobronchitis, Pneumonia, aspiration, Pulmonary larval infestation/nematodes, Pulmonary larval migrans |
| Musculoskeletal / Ortho | Kyphoscoliosis, Tracheobronchiopathia osteoplastica |
| Neurologic | No underlying causes |
| Nutritional / Metabolic | No underlying causes |
| Obstetric/Gynecologic | No underlying causes |
| Oncologic | No underlying causes |
| Opthalmologic | No underlying causes |
| Overdose / Toxicity | No underlying causes |
| Psychiatric | No underlying causes |
| Pulmonary | No underlying causes |
| Renal / Electrolyte | No underlying causes |
| Rheum / Immune / Allergy | No underlying causes |
| Sexual | No underlying causes |
| Trauma | No underlying causes |
| Urologic | No underlying causes |
| Dental | No underlying causes |
| Miscellaneous | No underlying causes |
Alphabetical order
See also
References