M
EDEX
Medfusion 3500
Medex Operation Manual
Artwork GD000608 Revision 5
Page 72
Volume / Time & Intermittent modes
Below is a table of
volume / time
and
intermittent
modes and the formulae used to calculate them:
Type of Mode
How it is Figured
volume / time
Rate is calculated as volume (ml) divided by time (hours:minutes) where time is rationalized
as hours plus minutes divided by 60.
intermittent mode
Rate is calculated as volume (ml) divided by time (hours:minutes) where time is rationalized
as hours plus minutes divided by 60; here, there is a time between deliveries with no flow.
Custom Dilution Algorithm
Below is a table of parameters needed to generate the custom dilution formula:
Parameter
Units
Abbreviation
initial drug concentration
mg/ml
IC
target (volumetric) rate
ml/hr
TVR
patient weight
kg
W
target dose rate
mcg/kg/min*
TDR
final (diluted) volume
ml
FV
* Dose rate is chosen from list of: mg/kg/min, mg/kg/hr, mcg/kg/min, mcg/kg/hr.
T
HE
R
ESULTS FROM THE
D
ILUTION
C
ALCULATION
Result
Unit
Type
Volume of drug
ml
VDR
Volume of diluent
ml
VDL
Final (delivery) concentration
mg/ml
C
Final (delivery) volumetric rate
ml/hr
R
