pulmonary/vent info

Question 1

FEVt

Answer 1

FEVt Forced expiratory volume (time): a generic term indicating the volume of air exhaled under forced conditions in the first 10 seconds

Question 2

TLC

Answer 2

TLC Total lung capacity: the volume in the lungs at maximal inflation

Question 3

RV

Answer 3

RV Residual volume: the volume of air remaining in the lungs after a maximal exhalation

Question 4

ERV

Answer 4

.ERV Expiratory reserve volume: the maximal volume of air that can be exhaled from the end-expiratory position

Question 5

IRV

Answer 5

IRV Inspiratory reserve volume: the maximal volume that can be inhaled from the end-inspiratory level

Question 6

IC

Answer 6

IC Inspiratory capacity: the sum of IRV and TV.

Question 7

IVC

Answer 7

IVC Inspiratory vital capacity: the maximum volume of air inhaled from the point of maximum expiration..

Question 8

VC

Answer 8

.VC Vital capacity: the volume equal to TLC − RV

Question 9

VT

Answer 9

VT Tidal volume: that volume of air moved into or out of the lungs during quiet breathing (VT indicates a subdivision of the lung; when tidal volume is precisely measured, as in gas exchange calculation, the symbol VT or VT is used.).

Question 10

FRC

Answer 10

FRC Functional residual capacity: the volume in the lungs at the end-expiratory position.

Question 11

VA

Answer 11

.VA Alveolar gas volume

Question 12

VL

Answer 12

VL Actual volume of the lung including the volume of the conducting airway..

Question 13

FVC

Answer 13

.FVC Forced vital capacity: the determination of the vital capacity from a maximally forced expiratory effort

Question 14

Average lung volumes in healthy adults (Volume(litres))
IRV
VT
ERV
RV

Answer 14

Average lung volumes in healthy adults: (Volume (litres))
men women
Inspiratory reserve volume– 3.3 1.9
Tidal volume——————— 0.5 0.5
Expiratory reserve volume—- 1.0 0.7
Residual volume——————1.2 1.1

Question 15

Lung capacities in healthy adults (Avg.)Volume (litres)
VC
IC
FRC
TLC

Answer 15

Lung capacities in healthy adults (Avg.)Volume (litres)

—————————————–m——-w——formula(derivation)
Vital capacity———————-4.8—–3.1——IRV + TV + ERV
Inspiratory capacity————–3.8—–2.1——IRV + TV
Functional residual capacity—2.2—–1.8——ERV + RV
Total lung capacity—————6.0—–4.2——IRV + TV + ERV +RV