Gambro AK 96, Operator'S Manual, Page: 285 / 509

How the measuring process is performed by
the machine
It is possible to measure clearance during treatment by
using a conductivity sensor placed after the dialyzer in
the fl uid path.
A measurement check is performed in two phases.
During the fi rst measurement phase (baseline phase) data
from the sensor is collected for some minutes.
The second phase (step phase) begins with an increase
or a decrease in the conductivity level. This is followed
by data collection for some minutes. If there will be an
increase or a decrease is dependent on the relation of the
conductivity levels in the dialysis fl uid before and after
the dialyzer in the fi rst phase. This is to ensure that the
patient’s sodium balance remains as neutral as possible.
When the second phase is complete the conductivity level
is returned to the set value and the clearance calculation
is performed. The calculation is based on the measured
difference between the conductivity levels in the fi rst and
second phases.
Glossary of Diascan
®
parameters and key
terms
Parameters:
K is clearance. Clearance tells the operator how much
blood, in ml/min, is cleaned of urea after it has passed the
dialyzer. This value can be compared with the current
blood fl ow rate at that time.
12:4
AK 96 ® Operator's Manual - Diascan
HCEN12239 Revision 12.2010
Program version 3.xx