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Pulmonology Board Review > CPET > Flashcards

CPET Flashcards

1
Q

PETO2

A

End tidal O2

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2
Q

PETCO2

A

End tidal CO2

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3
Q

Surrogate for arterial CO2 (PaCO2)

A

PETCO2

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4
Q

Ve

A

Expired ventilation (Minute ventilation)

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5
Q

PAO2

A

Alveolar oxygen

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6
Q

4 values derived from the lungs on CPET

A

Ve PETO2 PETCO2 PAO2

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7
Q

Q

A

Cardiac output

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8
Q

PaO2

A

Arterial oxygen pressure

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9
Q

CaO2

A

Arterial oxygen content

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10
Q

SaO2

A

Arterial oxygen sat

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11
Q

PaCO2

A

Arterial carbon dioxide pressure

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12
Q

4 values from the arteries on CPET

A

PaO2 CaO2 SaO2 PaCO2

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13
Q

VO2

A

Oxygen consumption (uptake by muscles)

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14
Q

VCO2

A

CO2 production by muscles

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15
Q

2 values from muscles in CPET

A

VO2 VCO2

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16
Q

3 values from veins in CPET

A

SvO2 CvO2 PvO2

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17
Q

SvO2

A

Venous oxygen sat

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18
Q

CvO2

A

Venous oxygen content

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19
Q

PvO2

A

Venous oxygen pressure

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20
Q

FICK equation

A

VO2 = Q x (CaO2 - CvO2)

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21
Q

Normal amount of oxygen extracted at peak exercise

A

80% (Does not change in diseased state)

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22
Q

Normal RPM for cycle ergometer to achieve desired work rate

A

55 - 65 rpm

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23
Q

RER

A

Respiratory exchange ratio

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24
Q

AT

A

Anaerobic threshold

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25
Q

HRR

A

Heart rate recovery

26
Q

Measurement of HR 1 minute after stopping exercise in CPET

A

Heart rate recover (HRR)

27
Q

Normal range for HRR

A

20 - 30 (< 12 is abnormal)

28
Q

VR

A

Ventilatory reserve

29
Q

Vd/Vt

A

Dead space ventilation

30
Q

Normal range for VO2

A

> 80%

31
Q

VO2 threshold suggesting serious cardiopulmonary disease is not likely

A

> 20%

32
Q

Normal % of VO2 for people to hit anaerobic threshold

A

50-66%

33
Q

Anaerobic threshold of VO2 that suggests cardiac impairment

A

< 40%

34
Q
A

V slope curve for anaerobic threshold

35
Q
A

Minute ventilation for anaerobic threshold

36
Q

Formula for max HR

A

220 - age

37
Q

VO2/HR

A

Oxygen pulse

(Surrogate of SV)

38
Q

Normal VO2/HR

A

> 80% or

15 ml/beat in men

10 ml/beat in women

39
Q

MVV

A

Maximum voluntary ventilation

40
Q

MVV formula from PFT

A

FEV1 x 40

41
Q

Ventilatory reserve formulas (2)

A

VEmax/MVV x 100 (n = < 75%)

MVV - VEmax (n = > 11L)

42
Q
A

Exercise Oscilatory Breathing (EOB)

Cardiac limitation

Poor prognosis

High risk of sudden cardiac death

43
Q

VE/VCO2

A

Amount of exhaled volume needed to expell 1L of CO2

44
Q

Normal increase in VO2 with exercise

A

12-18x baseline

45
Q

Normal increase in HR with exercise

A

2.5 - 3 x baseline

46
Q

Normal increase in SV with exercise

A

1.5 - 2 x baseline

47
Q

Normal increase in CO in exercise

A

4-5 x baseline

48
Q

Normal increase in Ve with exercise

A

20-25 x baseline

49
Q
A

Cardiac limitation pattern

50
Q
A

Pulmonary Limitation patter

51
Q
A

Pulmonary vascular disease/ILD pattern

52
Q
A

Normal pattern

53
Q

Normal A-a gradient

A

5-20

54
Q

Normal Max Vt

A

60% of FVC

55
Q

Normal Ve

A

<60-80% of MVV

56
Q

Normal PETCO2

A

35-45

57
Q

Normal PETO2

A

100-115

58
Q

Normal Dead Space

A

0.25 - 0.35

59
Q

Normal Ve/Vco2

A

24-34

60
Q

Normal Ve/Vo2

A

22-32

Pulmonology Board Review (32 decks)

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