Pulmonology Book

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Vital CapacityAka: VC

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  1. See Also
    1. Pulmonary Function Test
    2. Lung Volume
    3. Functional Residual Capacity
  2. Definition
    1. Maximal volume expelled after maximal inspiration
  3. Calculation
    1. Components (additive)
      1. Inspiratory Reserve Volume (IRV) +
      2. Expiratory Reserve Volume (ERV) +
      3. Tidal Volume (TV)
    2. Normal adult: 3 to 5 Liters
    3. Gender Differences (values are >80% of predicted)
      1. Females: 50 to 60 cc/kg
      2. Males: 70 cc/kg
    4. Advancing age after 20 years
      1. Vital Capacity decreases 200 to 250 cc per 10 years
    5. Calculations based on height
      1. Females: (27.63 - (0.112 x age)) x (height cm)
      2. Males: (21.78 - (0.101 x age)) x (height cm)
    6. Minimum (life sustaining): 15 cc/kg
  4. References
    1. Rollings (1984) Facts and Formulas, p. 17-18
    2. Wilson (1991) Harrison's IM, McGraw-Hill, p.1033-6

Vital capacity (C0042834)

Definition (MSH)The volume of air that is exhaled by a maximal expiration following a maximal inspiration.
ConceptsOrgan or Tissue Function (T042)
EnglishForced vital cap., FORCED VITAL CAPAC, Forced Vital Capacities, Forced Vital Capacity, FVC, Lung vital capacity, VC, VITAL CAPAC, Vital Capacities, Vital Capacity, Vital capacity.forced
Spanishcapacidad vital, capacidad vital forzada, CV, CVF
CreditsDerived from the NIH UMLS (Unified Medical Language System)



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