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
HRR
Heart rate recovery
26
Measurement of HR 1 minute after stopping exercise in CPET
Heart rate recover (HRR)
27
Normal range for HRR
20 - 30 (\< 12 is abnormal)
28
VR
Ventilatory reserve
29
Vd/Vt
Dead space ventilation
30
Normal range for VO2
\> 80%
31
VO2 threshold suggesting serious cardiopulmonary disease is not likely
\> 20%
32
Normal % of VO2 for people to hit anaerobic threshold
50-66%
33
Anaerobic threshold of VO2 that suggests cardiac impairment
\< 40%
34
V slope curve for anaerobic threshold
35
Minute ventilation for anaerobic threshold
36
Formula for max HR
220 - age
37
VO2/HR
Oxygen pulse | (Surrogate of SV)
38
Normal VO2/HR
\> 80% or 15 ml/beat in men 10 ml/beat in women
39
MVV
Maximum voluntary ventilation
40
MVV formula from PFT
FEV1 x 40
41
Ventilatory reserve formulas (2)
VEmax/MVV x 100 (n = \< 75%) MVV - VEmax (n = \> 11L)
42
Exercise Oscilatory Breathing (EOB) Cardiac limitation Poor prognosis High risk of sudden cardiac death
43
VE/VCO2
Amount of exhaled volume needed to expell 1L of CO2
44
Normal increase in VO2 with exercise
12-18x baseline
45
Normal increase in HR with exercise
2.5 - 3 x baseline
46
Normal increase in SV with exercise
1.5 - 2 x baseline
47
Normal increase in CO in exercise
4-5 x baseline
48
Normal increase in Ve with exercise
20-25 x baseline
49
Cardiac limitation pattern
50
Pulmonary Limitation patter
51
Pulmonary vascular disease/ILD pattern
52
Normal pattern
53
Normal A-a gradient
5-20
54
Normal Max Vt
60% of FVC
55
Normal Ve
\<60-80% of MVV
56
Normal PETCO2
35-45
57
Normal PETO2
100-115
58
Normal Dead Space
0.25 - 0.35
59
Normal Ve/Vco2
24-34
60
Normal Ve/Vo2
22-32