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Lung VolumeAka: Inspiratory Reserve Volume, Tidal Volume, Inspiratory Capacity, Expiratory Reserve Volume, Residual Volume, Total Lung Capacity

See Also
Inspiratory Volumes
1. Inspiratory Reserve Volume (IRV)
  1. Maximal inspired volume from end-tidal inspiration
2. Tidal Volume (Vt)
  1. Volume inspired and expired with each normal breath
  2. Minimum volume: 3 ml/kg
  3. Normal volume: 6-7 ml/kg
3. Inspiratory Capacity (IC)
  1. Maximal volume inspired from resting expiratory level
  2. Calculation: IRV + Vt
Expiratory Volumes
1. Expiratory Reserve Volume (ERV)
  1. Maximal expired volume from end-tidal inspiration
  2. Normal: 25% of Vital Capacity
2. Residual Volume (RV)
  1. Volume remaining in lungs after maximal expiration
  2. Normal adult: 1.0 to 2.4 Liters
3. Functional Residual Capacity (FRC)
  1. Volume remaining in lungs at resting expiratory level
Overall Lung Volumes
1. Vital Capacity (VC)
  1. Maximal volume expelled after maximal inspiration
2. Total Lung Capacity (TLC)
  1. Volume in lungs at end of maximal inspiration
  2. Calculation: VC + RV
  3. Normal adult: 4-6 Liters
References
1. Rollings (1984) Facts and Formulas, McNaughton & Gunn
2. Marini (1987) Respiratory Medicine, Williams & Wilkins

Expiratory Reserve Volume (C0015326)
Definition (MSH)	The extra volume of air that can be expired with maximum effort beyond the level reached at the end of a normal, quiet expiration. Common abbreviation is ERV.
Concepts	Laboratory or Test Result (T034) , Organ or Tissue Function (T042)
MSH	D005105
English	ERV, ERV - Expiratory reserve volume, Expiratory Reserve Volume, Expiratory Reserve Volumes
Spanish	volumen de reserva espiratorio, VRE
Parent Concepts	Lung Volume Measurements (C0024129), Functional Residual Capacity (C0016815), Vital capacity (C0042834), Dynamic lung volume (C0429704)
Sources	AOD, MSH, MTH, SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System)

Inspiratory Reserve Volume (C0021613)
Definition (MSH)	The extra volume of air that can be inspired with maximal effort after reaching the end of a normal, quiet inspiration. Common abbreviation is IRV.
Concepts	Laboratory or Test Result (T034) , Organ or Tissue Function (T042)
MSH	D007321
English	Inspiratory Reserve Volume, Inspiratory Reserve Volumes, IRV, IRV - Inspiratory reserve
Spanish	volumen de reserva inspiratoria, VRI
Parent Concepts	Lung Volume Measurements (C0024129), Inspiratory Capacity (C0021610), Dynamic lung volume (C0429704)
Sources	AOD, MSH, SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System)

Tidal Volume (C0040210)
Definition (MSH)	The volume of air inspired or expired during each normal, quiet respiratory cycle. Common abbreviations are TV or V with subscript T.
Definition (CSP)	includes tidal volume, inspiratory and expiratory reserve volumes, residual volume, respiratory dead space, pulmonary ventilation, maximal voluntary ventilation, and vital capacity.
Concepts	Finding (T033)
MSH	D013990
English	Lung tidal volume, respiratory airway volume, Tidal Volume, Tidal Volumes, TV - Tidal volume, V T, V<sub>T</sub>, V>T<, VT, VT - Tidal volume
Spanish	volumen corriente pulmonar
Parent Concepts	Lung Volume Measurements (C0024129), Respiratory physiology (C0035245), Inspiratory Capacity (C0021610), Dynamic lung volume (C0429704)
Sources	AOD, CSP, MSH, MTH, SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System)

Lung volume (C0231953)
Concepts	Organ or Tissue Function (T042)
English	Lung volume
Spanish	volumen pulmonar
Parent Concepts	Lung volume AND/OR capacity (C1268923)
Sources	CSP, SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System)

Lung residual volume measurement (C0429713)
Concepts	Laboratory Procedure (T059)
English	Lung residual volume measurement, residual volume
Spanish	medicion del volumen pulmonar residual
Parent Concepts	Lung Volume Measurements (C0024129)
Sources	AOD, MTH, SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System)