Instructions for Use
CPET
page 64
Version: 4 | Release date: 01 April 2022
Name
Unit
Description
REE
kcal/24h
Resting Energy Expenditure
REE = (3.9 x VO
2
+ 1.1 x VCO
2
) x 1.44
O
2
Delay
ms
Delay in rise of O
2
signal
CO
2
Delay
ms
Delay in rise of O
2
signal
REE/BSA
kcal/24h/m²
Resting Energy Expenditure per Body Surface Area
BSA calculation according to formula DuBois
RQnp
-
RQ corrected for proteine consumption
Load (i)
W
Load interpolated over each load stage
HR (i)
1/min
HR interpolated over each load stage
VO
2
ref
l/min
Predicted Oxygen consumption
VEref
l/min
Predicted minute ventilation
Vt/VC
%
Tidal volume in percent of vital capacity
REE (Weir)
kcal/24h
Resting Energy Expenditure
REE = (3.9 x VO
2
+ 1.1 x VCO
2
) x 1.44
Load (/norm)
W
Predicted load calculated by using the norm weight of
patient
VO
2
(/norm)
l/min
Predicted oxygen consumption calculated by using
the norm weight of patient
VO
2
/breath
ml
Oxygen consumption per breath
VCO
2
/breath
ml
Carbon dioxide production per breath
Time
s
Time
𝑃𝑃𝑀𝑀𝑃𝑃
= 0.007184
𝑥𝑥
𝐻𝐻𝐹𝐹𝐹𝐹𝑔𝑔ℎ𝑡𝑡
(
𝑐𝑐𝑉𝑉
)
0
.
725
×
𝑊𝑊𝐹𝐹𝐹𝐹𝑔𝑔ℎ𝑡𝑡
(
𝑘𝑘𝑔𝑔
)
0
.
425