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Metabolism Monitoring Parameters

Name

Units

Description

CO2 Ref
%
Reference CO2 %
O2 Ref
%
Reference O2 %
CO2 Out
%
CO2 measured at the output of the chamber
O2 Out
%
O2 measured at the output of the chamber
Flow
ml/s
Flow measured by the GAM 151
Weight
g
Subject’s weight, as entered by the user
VO2
l/min
Rate of oxygen uptake
VCO2
l/min
Rate of carbon dioxide production
MR   Metabolic rate, calculated using Weir’s Equation
RQ   Respiratory quotient, VCO2/VO2

Cur t

time

Current system time

Rec t

time

Recorded time (for replayed data)

Rel t

time

Relative time from start of experiment

Rel us

us (micro-s)

More accuracy for Rel t output

s

s

Number of seconds from start of experiment

n

count

Number of breaths included in the output

nRej

count

Number of breaths rejected

Period

 

Current period name

User

 

Current user name

TV

ml

Tidal Volume, volume inspired during one breath

tI

s

Inspiration time

tE

s

Expiration time

PIf

mls-1

Peak inspiratory flow

PEf

mls-1

Peak expiratory flow

f

breaths/minute

Frequency of breathing

MV

ml

Minute Volume, volume inspired in one minute

tR

s

Relaxation time,

AV

ml

Accumulated volume

EIP

s

End inspiratory pause

EEP

s

End expiratory pause

Penh

(none)

Pause enhanced

VolBal

%

Difference between inspiratory/expiratory volume

Atm

mbar

Atmospheric pressure

Hum

%

Relative humidity in chamber

Temp

deg. C

Air temperature in chamber

BTemp

deg. C

Body temperature of animal

Corr

N/A

Drorbaugh & Fenn volume correction constant

NTemp

deg. C

Nasal temperature

AtoB

N/A

Epstein & Epstein A/B ratio

 
(c) EMMS