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Physiopath respi > Valeurs > Flashcards

Valeurs Flashcards

1
Q

vitesse mobilisation mucus

A

0,5-1 mm/min = petites voies aériennes
5-20 mm/min = grosses bronches, trachée

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2
Q

poids poumons

A

D = 700 g
G = 600 g

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3
Q

espace pleural

A

10-30 𝜇m

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4
Q

volume voies aériennes sup

A

150 mL

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5
Q

volume voies aériennes inf

A

3L

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6
Q

pression réseau pulmonaire

A

15 mmHg

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7
Q

pression réseau systémique

A

100 mmHg

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8
Q

Résistance pulmonaire

A

2 mmHg.min/L

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9
Q

Résistance vasculaire pulmonaire

A

RVP = RVSystémique/10

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10
Q

Capillaires pulmonaires

A

10 𝜇m

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11
Q

Surface d’échange gazeux

A

100 m^2

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12
Q

Nmbre d’alvéoles dans les 2 poumons

A

300 x 10^6 alvéoles

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13
Q

Pression pleurale en fn d’expi calme (CRF)

A

Ppl = -5 cmH20

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14
Q

Pression pleurale en fin d’expi max (VR)

A

Ppl = 1 cmH20

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15
Q

Pression pleurale en fin d’inspi max (CPT)

A

Ppl = -25/30 cmH20

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16
Q

Volume courant VC

A

500 mL

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17
Q

Rythme respi moyen

A

12 respi/min

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18
Q

Ventilation minute

A

VE = 6000 mL/min

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19
Q

Espace mort physiologique

A

VD = 150 mL

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20
Q

Ventilation alvéolaire

A

VA = 4200 mL/min

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21
Q

PaCO2

A

40 mmHg (H)
36 mmHg (F) 30 mmHg (F enceinte)

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22
Q

Pression partielle expirée en O2

A

PEO2 = 120 mmHg

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23
Q

Pression partielle expirée en CO2

A

PECO2 = 27 mmHg

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24
Q

Pression partielle alvéolaire en O2

A

PAO2 = 104 mmHg

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25
Q

Pression partielle alvéolaire en CO2

A

PACO2 = 40 mmHg = 0,863VCO2/VA

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26
Q

Patm

A

= 760 mmHg = Pbronche

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27
Q

Prod quotidienne de CO2

A

15-20 000 mmol/j

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28
Q

Capacité résiduelle fonctionnelle

A

CRF = 2,5L

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29
Q

Rapport VD/VC

A

(PACO2-PECO2)/PACO2 = 0,2-0,35

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30
Q

CPT

A

CRF + CI

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31
Q

CI

A

VRI + VC

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32
Q

CRF

A

VRE + VR

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33
Q

CV

A

VRI + VC + VRE

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34
Q

Pléthysmographe

A

P3V2 = P4(V2=CRF + ΔV)

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35
Q

Ventilation pulmonaire tot (mL/min)

A

VC x RR(rythme respi)

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36
Q

PM CO2

A

44 g/mol

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37
Q

PM O2

A

32 g/mol

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38
Q

épaisseur mb alvéolo-capillaire

A

0,3-0,5 𝜇m

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39
Q

ΔPCO2

A

6 mmHg = PvCO2 (46) - PACO2(40)

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40
Q

ΔPO2

A

64 mmHg = PAO2 (104) - PvO2 (40)

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41
Q

temps de transit capillaire normal du GR

A

0,75 sec

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42
Q

Capacité de diffusion du CO normale au repos

A

DLCO = 25 mL/min/mmHg

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43
Q

Loi de Fick

A

= volume d’un gaz qui diffuse à travers un tissu
Vgaz = (S/E)D(P1-P2)

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44
Q

Constante de diffusion

A

D = solubilité / √PM

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45
Q

Capacité de diffusion du CO

A

DLCO = VCO/PACO = S/E x D

46
Q

Résistance globale à la diffusion de l’O2 en mmHg.min/mL

A

1/DL = 1/Dm + 1/(𝜎 x Vc)

47
Q

diamètre a pulmonaire

A

3 cm

48
Q

Débit cardiaque en L/min

A

Q = ΔP/R

49
Q

Pression moyenne pulmonaire

A

15 mmHg

50
Q

Pression moyenne OG

A

5 mmHg

51
Q

Pression moyenne OD

A

2 mmHg

52
Q

Pression moyenne aortique

A

100 mmHg

53
Q

PAPmoy

A

Ppamoyen-POG = 10 mmHg
= (Ppa syst + 2 Ppa diast)/3

54
Q

PASmoy

A

Psamoy-POD = 98 mmHg

55
Q

Pression artériole pulmonaire

A

Partériole = 12 mmHg

56
Q

Pression veinule pulmonaire

A

Pveinule = 8 mmHg

57
Q

Pression capillaire pulmonaire

A

Pcap = 10 mmHg

58
Q

Palv

A

0 mmHg

59
Q

Hypertension pulmonaire

A

ssi PAPm>20 mmHg

60
Q

𝜫c

A

28 mmHg

61
Q

𝜫i

A

17 mmHg

62
Q

Pc

A

7 mmHg

63
Q

Pi

A

-5 mmHg = Ppl

64
Q

Pnette filtration

A

1-2 mmHg (7-(-5)-(28-17)

65
Q

Pression de vapeur d’H2O

A

PH2O = 47 mmHg

66
Q

Fraction inspirée en O2

A

FIO2 = 0,21 = 21%

67
Q

Quotient respi

A

R = VCO2 (prod CO2)/VO2(conso O2) = 0,8

68
Q

% du DC qui revient au shunt

A

QS/QT = 2%

69
Q

PO2

A

= FIO2 x Pbronche

70
Q

PIO2

A

FIO2 x (Pbronche - PH2O)

71
Q

Transport artériel en O2

A

TaO2 = 15 mL

72
Q

Taux d’Hb dans le sang

A

15 g/dL

73
Q

1 g d’Hb fixe

A

1,39 mL d’O2

74
Q

CO2dissous

A

10% du CO2

75
Q

CO2 sous forme de HCO3-

A

60% du CO2

76
Q

Contenu artériel en O2

A

CaO2 = 1,39[Hb] - SaO2 + 0,003PaO2

77
Q

Contenu veineux en O2

A

CvO2 = 1,39[Hb] - SvO2 + 0,003PaO2

78
Q

[gaz]dissout (loi Henry)

A

= s x Pgaz

79
Q

DC

A

Q = VO2/(CaO2 - CvO2)

80
Q

Pression pleurale

A

Ppl = -5 cmH2O
sommets -> -10 cmH2O
base -> -2 cmH2O

81
Q

Rappel élastique à la CPT

A

30 cmH2O

82
Q

Compliance pulmonaire

A

CL = 200 mL/cmH2O

83
Q

Débit lymphatique

A

20 mL/h

84
Q

Pression trans-pulmonaire

A

Pl = Palv - Ppl

85
Q

Pression trans-thoracique

A

Pcw = Ppl - Pbronche

86
Q

Pression trans-respiratoire

A

Prs = Pl + Pcw = Palv - Pbronches

87
Q

Pression de rappel élastique du système respi

A

PRS = PL(rappel élastique poumon) + Pw(rappel élastique cage thoracique)

88
Q

1/Compliance du système respi

A

1/Crs = 1/CL + 1/Cw

89
Q

Compliance

A

ΔV/ΔP

90
Q

Compliance du système respi

A

CRS = ΔV/ΔPRs = ΔV/Δ(PL + Pw)

91
Q

Compliance pulmonaire spé du poumon

A

C = CL/CPT

92
Q

Pression dans 2 alvéoles (Loi Laplace)

A

P = 2 x 2T/r = 4T/r

93
Q

Rapport de Tiffeneau

A

VEMS/CVF > 70%

94
Q

Volume max expiré max en 1 sec

A

VEMS = 3,5-4L > 80% VP

95
Q

Résistance au flux laminaire

A

R = ΔP/Vpoint

96
Q

Débit d’un flux laminaire (Loi Poiseuille)

A

Vpoint = ΔP/R = 𝜫r4ΔP/8l𝞰

97
Q

pression motrice flux turbulent

A

P = KV^2

98
Q

Nombre de Reynolds

A

Re = 2rvd/𝞰
> 2000 = écoulement turbulent
< 2000 = écoulement laminaire

99
Q

Résistance des voies aériennes par pléthysmographie

A

Raw = ΔP/débit aérien = (PAO - Palv)/Vpoint

100
Q

Débit Vpoint (mL/s)

A

v(cm/s) x s (cm2)

101
Q

Résistance des voie aériennes corrigée par la CRF

A

= résistance des voies aériennes spé
Rawsp =Raw x CRF

102
Q

Travail respi

A

P x V

103
Q

PaO2

A

85-100 mmHg

104
Q

PaCO2

A

35-40 mmHg

105
Q

Rythme de base respi

A

Inspi = 2 sec
Expi = 3 sec

106
Q

pH liquide cérébro-spinal

A

N = 7,32

107
Q

VO2 max au repos

A

250 mL/min = 3,5 mL/kg/min

108
Q

Ventilation max

A

VEmax = 100-110 L/min
VMM = 150-170 L/min

109
Q

Lors syndromes obstructifs

A

VMM = 37,5VEMS

110
Q

Seuil anaérobie

A

60% de la VO2 max
> 80% chez sujet entrainé

111
Q

Quotient respi

A

R = 1 pour glucides
R = 0,8 pour protides
R = 0,7 pour lipides au repos

Physiopath respi (1 decks)

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