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Chapter 3: Continuous Renal Replacement Therapies (CRRT)
2. After the blood pump restarts (following an alarm or after pressing
RESUME from the Stop screen).
3. After the operator presses the CONTINUE softkey from a pressure
trending Advisory alarm screen.
Pressure Trending Limits
If the access or return pressure changes 50 mmHg negative or positive from
its pressure operating point, the control unit notifies the operator by issuing
an Advisory alarm, as shown in Figure 11. These alarms can be cleared by
pressing the CONTINUE key on the alarm screen. This resets the pressure
operating points to the current pressures in each pod.
mmHg
+50
Advisory alarm
Advisory: Access Pressure is Rising
Advisory: Return Too Positive
Pressure Operating Point
-50
Advisory: Access Too Negative
Advisory: Return Pressure is Dropping
Figure 11. Pressure Trending Limits, CRRT Therapies
“Cannot Detect Disconnection” Limits
If the access pod operating point is set more positive than -10 mmHg, or if
the return pod operating point is set below +10 mmHg, a “Cannot Detect
Disconnection” Advisory alarm occurs, as shown in Figure 12. The operator
PRISMA System Operator’s Manual
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