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IMS: Physiology > Pulmonary Symbols, Terminology, and Normal Values > Flashcards

Pulmonary Symbols, Terminology, and Normal Values Flashcards

1
Q

C

A

Compliance

C = ΔV / ΔP

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2
Q

D

A

Diffusion

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3
Q

F

A

Fractional concentration of a gas.

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4
Q

f

A

Frequency

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5
Q

P

A

Pressure or partial pressure

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6
Q

Q̇

A

Volume of blood per unit time.

Blood flow or perfusion.

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7
Q

R

A

Resistance

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8
Q

S

A

Saturation

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9
Q

T

A

Time

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10
Q

V

A

Gas volume.

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11
Q

V̇

A

Volume of gas per unit time.

Airflow.

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12
Q

XA

A

Alveolar

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13
Q

Xa

A

Arterial

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14
Q

XAw

A

Airway

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15
Q

X<strong>B</strong>

A

Barometric

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16
Q

X<strong>D</strong>

A

Dead space

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17
Q

X<strong>E</strong>

A

Expiratory

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18
Q

X<strong>I</strong>

A

Inspiratory

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19
Q

X<strong>L</strong>

A

Lung

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20
Q

XC’

A

Pulmonary end-capillary

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21
Q

X<strong>pl</strong>

A

Pleural

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22
Q

X<strong>pw</strong>

A

Pulmonary wedge

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23
Q

X<strong>s</strong>

A

Shunt

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24
Q

X<strong>T</strong>

A

Tidal

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25
Q

XTp

A

Transpulmonary

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26
Q

X<strong>V</strong>

27
Q

FIO2

A

Fractional concentration of inspired O2

28
Q

PB

A

Barometric pressure

29
Q

PCO2

A

Partial pressure of carbon dioxide

30
Q

PA

A

Alveolar pressure

31
Q

PO2

A

Partial pressure of oxygen

32
Q

PaCO2

A

Partial pressure of carbon dioxide in arterial blood

33
Q

PACO2

A

Partial pressure of carbon dioxide in alveoli

34
Q

PIO2

A

Partial pressure of inspired O2

35
Q

PECO2

A

Partial pressure of CO2 in expired gas

36
Q

PAO2 - PaO2

A

Alveolar-arterial difference in partial pressure of O2

37
Q

Ppl

A

Pleural pressure

38
Q

Raw

A

Airway resistance

39
Q

SaO2

A

Saturation of hemoglobin with oxygen in O2 in arterial blood

40
Q

TI

A

Inspiratory time

41
Q

TE

A

Expiratory time

42
Q

V̇A

A

Alveolar ventilation

43
Q

V̇AQ̇

A

Alveolar ventilation/perfusion ratio

44
Q

VD

A

Dead space volume

45
Q

V̇D

A

Dead space ventilation

46
Q

V̇E

A

Expired minute ventilation

47
Q

V̇O2​

A

Oxygen consumption per minute

48
Q

EPP

A

Equal Pressure Point

The point at which the pressure inside the airway equals the pressure outside of the airway

Paw = Ppl

49
Q

ERV

A

Expiratory Reserve Volume

The maximal volume of air exhaled at the end of the tidal volume.

Normal ~ 1.2 L

50
Q

FEF25-75

A

Forced expiratory flow

The maximal mid-expiratory flow rate.

Measured by drawing a line between points representing 25% and 75% of the forced vital capacity.

Normal ~ 5 L/sec.

51
Q

FEV1

A

Forced expiratory volume

The maximal volume of air forcibly exhaled in 1 second.

Normal ~ 4.0 L

52
Q

FEV1 / FVC %

A

Forced expired volume / forced vital capacity ratio

The percentage of FVC forcibly exhaled in 1 second.

Normal ~ 80%

53
Q

FRC

A

Functional residual capacity

The volume of air remaining in the lungs at the ned of a normal tidal volume

Normal ~ 2.4 L

54
Q

FVC

A

Forced vital capacity

The maximum volume of air forcibly exhaled after a maximum inhalation.

Normal ~ 4.8 L

55
Q

IC

A

Inspiratory capacity

The maximum volume of air inhaled after a normal expiration

Normal ~ 3.6 L

56
Q

IRV

A

Inspiratory reserve volume

The maximum volume of air inhaled at the end of normal inspiration.

Normal ~ 3.1 L

57
Q

PEF

A

Peak expiratory flow

The maximal expiratory flow during an FVC maneuver.

Normal ~ 7.5 L/sec

58
Q

RV

A

Residual volume

The volume of air remaining in the lungs after maximum expiration.

Normal ~ 1.2 L

59
Q

RV / TLC

A

Residual volume / total lung capacity ratio

The percentage of total lung capacity made up of residual volume.

Normal ~ 20%

60
Q

TLC

A

Total lung capacity

The volume of air in the lungs at the end of a maximum inspiration.

Normal ~ 6.0 L

61
Q

VC

A

Vital capacity

The maximum volume of air that can be exhaled.

Normal ~ 4.8 L

FVC = VC

VC = ERV + VT + IRV

VC calculated from static lung volumes.

FVC determined from direct spirometry.

62
Q

VD / VT

A

Dead space-tidal volume ratio

The fraction of the tidal volume made up of dead space.

Normal ~ 30%

63
Q

VT

A

Tidal volume of air inhaled or exhaled with each breath.

Normal ~ 0.5 L

IMS: Physiology (14 decks)

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