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Respiration parameters

  1. Frequency
    • How many respiratory cycles you have per minute
    • F
    • Units: breaths/min
    • Normal: 12-15/min
  2. Tidal Volume
    • The amount of air inspired and expired during normal, quiet respiration
    • VT
    • Units: L/breath
  3. Expired Minute Volume
    • The amount of air exhaled in one minute of breathing
    • VE=VT x F
    • Units: L/min
  4. Inspiratory Reserve Volume
    • The amount of air forcefully inspired above and beyond normal inspiration
    • IRV
    • Units: L
  5. Inspiratory Capacity
    • The maximal amount of air that can be inspired after a normal expiration
    • IC=VT+IRV
    • Units: L
  6. Expiratory Reserve Volume
    • The amount of air forcefully expired beyone normal expiration
    • ERV
    • Units: L
  7. Expiratory Capacity
    • Themaximal amount of air that can be expired after a normal inspiration
    • EC=VT+ERV
    • Units: L
  8. Vital Capacity
    • The maximal amount or air that can be forcefully expired after a maximal inspiration
    • VC=IRV+ERV+VT
    • Units: L
  9. Residual Volume
    • The amount of air remaining trapped in the lungs after a forceful expiration
    • RV=VC x 0.25
    • Units: L
  10. Total Lung Capacity
    • The sum total of air the lungs can contain
    • TLC=VC+RV
    • Units: L
  11. Functional Residual Capacity
    • The amount of air remaining in the lungs after a normal expiration
    • FRC=ERV+RV
    • Units: L
  12. Forced Expiratory Volume
    • The amount of air forcefully expired in 1 second
    • FEV1
    • Units: L
  13. Forced Expiratory Volume/Capacity
    • FEV1/FVC
    • Units: %
    • Normal: 75-80%
Author
emilysouders
ID
120762
Card Set
Respiration parameters
Description
definitions and equations
Updated

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