FEV1
Forced expiration metric
FEV1 is a measure of lung function: the volume of air a person can forcibly exhale in one second.
It stands for forced expiratory volume in one second.
Doctors use FEV1 to diagnose and monitor conditions like asthma and COPD: Her FEV1 has improved since starting the new inhaler.
Results are often expressed as a percentage of predicted normal values.
Lung airflow assessment
- lung capacityBreath volume measurement
- baselineStandard for comparison
- obstructionSomething blocking the way
- restrictionLimit on action
reversibility · screening · monitoring · staging · severity · decline · trajectory · interpretation
Chronic lung inflammation
- COPDChronic obstructive pulmonary disease
- emphysemaDamaged lung air sacs
- chronic bronchitisLasting respiratory tract inflammation
- cystic fibrosisGenetic disorder thickening mucus
airway obstruction · bronchospasm · wheezing · dyspnea · breathlessness · exacerbation · flare-up · lung function
Maximum exhalation speed measure
- vital capacityMaximum air lungs hold
- TLCAffectionate attention, abbreviated
- residual volumeAir remaining after full exhalation
- mildModerate in intensity
moderate · severe · prognosis · disease progression · inhaler · bronchodilator · corticosteroid · pulmonologist
Fluid capacity units
- volumeAmount of space filled
- one secondMomentary delay request
- forcedMade to occur unwillingly
- maneuverDeliberate tactical movement
reproducibility · spirometer · mouthpiece · noseclip · exhalation · technique · calibration · quality control
spirometry
Lung airflow assessment
- lung capacityBreath volume measurement
- baselineStandard for comparison
- obstructionSomething blocking the way
restriction · reversibility · screening · monitoring · staging · severity · decline · trajectory · interpretation · normal range
asthma
Chronic lung inflammation
- COPDChronic obstructive pulmonary disease
- emphysemaDamaged lung air sacs
- chronic bronchitisLasting respiratory tract inflammation
cystic fibrosis · airway obstruction · bronchospasm · wheezing · dyspnea · breathlessness · exacerbation · flare-up · lung function · respiratory
peak flow
Maximum exhalation speed measure
- vital capacityMaximum air lungs hold
- TLCAffectionate attention, abbreviated
- residual volumeAir remaining after full exhalation
mild · moderate · severe · prognosis · disease progression · inhaler · bronchodilator · corticosteroid · pulmonologist
liters
Fluid capacity units
- volumeAmount of space filled
- one secondMomentary delay request
- forcedMade to occur unwillingly
maneuver · reproducibility · spirometer · mouthpiece · noseclip · exhalation · technique · calibration · quality control
- Respirationbreathing, lungs, inhalation, inhaling, exhalation
- Spirometryspirometer, vital capacity, peak flow, residual volume, TLC
- Lung Measurementsvital capacity, lung capacity, peak flow, spirometry, residual volume
- lung testsspirometer, spirometry, lung function test, lung function, vital capacity
- allergy testsskin prick test, prick test, scratch test, patch test, skin test
- Clinical Scorespain scale, scoring system, classification system
FEV1residual volume
Air remaining after full exhalation
RV · TLC · trapped air · IC · MIP