Parameter Limits - Gambro Cobe Spectra Essentials Manual

Data Input Limits

Parameter Limits

The COBE Spectra Apheresis System operating parameters and some of
the calculated variables have maximum and minimum limits. For each
parameter, you may set up to six different maximum and minimum
limits. The limits are as follows:
•
Warning limits
•
Safety limits (for Automatic mode)
•
Absolute limits (for Manual mode)
When any parameter reaches its warning limit (in Automatic or Manual
mode), the Spectra system beeps and displays a warning message,
indicating the system is operating outside of the recommended limits.
When the Spectra system is in Automatic mode, you cannot change a
parameter beyond the safety limit. If you enter Manual mode, you may,
if absolutely necessary, enter a parameter value outside the safety limit.
Under no circumstances, even in Manual mode, will the Spectra
system exceed a parameter's absolute limits.
Table 14-1: Donor/patient data entry limits
Parameter
Height, ft, in, or cm
Weight, lb or kg
*
Donor/patient initial Hct,%
Donor platelet pre-count, µL
Target collection bag volume, mL
Target platelet concentration in collection bag, µL
Target run time, min
Inlet pump flow rate, mL/min
14-2
The safety and absolute limits apply if you change the parameter or if the
Spectra system adjusts the parameter in response to a change you make.
For example, if you change the inlet pump flow rate, and the resulting
donor/patient platelet post-count would be below its safety limit, the
system displays a warning.
As another example, if you change the inlet pump flow rate and the
resulting AC pump flow rate would exceed the safety limit for AC
infusion, the Spectra system automatically reduces the inlet pump flow
rate to maintain the AC pump flow rate at a safe AC infusion limit, and
displays a warning.
The parameters fall into four categories:
•
Parameters you enter during donor/patient data entry (see
Table 14-1)
•
Parameters you can change during Run mode
•
Values you can configure before beginning a procedure
•
Software parameters the Spectra system calculates
Initial Setting (Default) Minimum Limit
(no default)
(no default)
45% for male
41% for female
250,000/µL
(no default)
1,400,000/µL
100 min
Inlet:AC Ratio x QAC
Maximum Limit
12 in or 30 cm
10 lb or 5 kg
10%
1,000/µL
10 mL
100,000/µL
10 min
+
10 mL/min
®
COBE Spectra™ Apheresis System • Essentials Guide
84 in or 220 cm
500 lb or 230 kg
70% (all but RBCX)
80% (RBCX)
2,000,000/µL
9999 mL
8,000,000/µL
999 min
150 mL/min