Pulmonology Book

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Functional Residual Capacity

Aka: Functional Residual Capacity, FRC
  1. See Also
    1. Pulmonary Function Test
    2. Lung Volumes
    3. Diffusing Capacity
    4. Inhalation Challenge Test
    5. Exercise Spirometry
    6. Vital Capacity
    7. Peak Expiratory Flow Rate (PEFR)
    8. Spirometry Lower Limit of Normal (PFT LLN)
    9. Obstructive Lung Disease
    10. Restrictive Lung Disease
  2. Physiology
    1. Volume remaining in lungs at resting expiratory level
    2. Equivalent to alveolar volume (Va)
      1. Respiratory Bronchioles and alveolar ducts: 30-40%
      2. Alveoli: 60-70%
    3. Calculation: ERV + RV
    4. Normal adult: 1.8 to 3.4 Liters
  3. Causes: Factors that increase FRC (Hyperinflation)
    1. Emphysema
    2. Aging
    3. Asthma
    4. Peribronchial fibrosis
  4. Causes: Factors that decrease FRC
    1. Age
    2. Obesity
    3. Supine Posture
    4. Sedation

Functional Residual Capacity (C0016815)

Definition (NCI) The volume of air remaining in the lungs after a normal exhalation.
Definition (MSH) The volume of air remaining in the LUNGS at the end of a normal, quiet expiration. It is the sum of the RESIDUAL VOLUME and the EXPIRATORY RESERVE VOLUME. Common abbreviation is FRC.
Concepts Laboratory or Test Result (T034) , Organ or Tissue Function (T042)
MSH D005652
SnomedCT 65825000
LNC MTHU008902
English Capacities, Functional Residual, Capacity, Functional Residual, Functional Residual Capacities, Residual Capacities, Functional, Residual Capacity, Functional, FRC, FRC-Functional resid capacity, Functional Residual Capacity, frcs, functional residual capacity, frc, residual functional capacity, Capacity.functional residual, Functional residual capacity, FRC - Functional residual capacity, Functional residual capacity (observable entity)
French CRF (capacité résiduelle fonctionnelle), CRF (Capacité Résiduelle Fonctionnelle), Capacité résiduelle fonctionnelle
German FRC, funktionelle Residualkapazitaet, Residualkapazität, funktionelle
Spanish CRF, capacidad residual funcional (entidad observable), capacidad residual funcional, Capacidad residual funcional, Capacidad Residual Funcional
Japanese 機能的残気量, ｷﾉｳﾃｷｻﾞﾝｷﾘｮｳ
Swedish Funktionell residualkapacitet
Czech funkční reziduální kapacita, FRC, Funkční reziduální kapacita
Finnish Toiminnallinen jäännöstilavuus
Russian LEGKIKH OSTATOCHNYI OB"EM FUNKTSIONAL'NYI, FUNKTSIONAL'NYI OSTATOCHNYI OB"EM, ЛЕГКИХ ОСТАТОЧНЫЙ ОБЪЕМ ФУНКЦИОНАЛЬНЫЙ, ФУНКЦИОНАЛЬНЫЙ ОСТАТОЧНЫЙ ОБЪЕМ
Polish Pojemność czynnościowa zalegająca, FRC, Czynnościowa pojemność zalegająca
Hungarian Funkcionális reziduális kapacitás, FRC
Norwegian Funksjonell residualkapasitet, FRC
Portuguese Capacidade residual funcional, Capacidade Residual Funcional
Dutch functionele residuale capaciteit, Reservecapaciteit, functionele
Italian Capacità funzionale residua
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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