Index: firmware/App/Modes/BloodPrime.c
===================================================================
diff -u -re5d1d67106a93a6cd1b5692b586625d715732e2f -r44a100f8e5210a02c23b8fcc4527d8e96d577381
--- firmware/App/Modes/BloodPrime.c	(.../BloodPrime.c)	(revision e5d1d67106a93a6cd1b5692b586625d715732e2f)
+++ firmware/App/Modes/BloodPrime.c	(.../BloodPrime.c)	(revision 44a100f8e5210a02c23b8fcc4527d8e96d577381)
@@ -209,9 +209,9 @@
 {
     BLOOD_PRIME_STATE_T result = BLOOD_PRIME_RAMP_STATE;
 
-    // update blood prime volume delivered so far
+    // Update blood prime volume delivered so far
     cumulativeBloodPrimeVolume_mL += ( getMeasuredBloodFlowRate() * BLOOD_PRIME_FLOW_INTEGRATOR );
-    // update independent calculated safety volume delivered so far
+    // Update independent calculated safety volume delivered so far
     bloodPrimeMotorCount = u32BiDiffWithWrap( bloodPrimeLastMotorCount, getBloodPumpMotorCount() ) / BP_HALL_EDGE_COUNTS_PER_REV;
     bloodPrimeVolumeDelivered_Safety = ( (F32)bloodPrimeMotorCount * VOLUME_PER_BP_MOTOR_REV_ML );  // TODO - include upstream pressure compensation to this calc
 
@@ -243,9 +243,14 @@
         // ramp blood pump on ramp interval
         if ( ++bloodPrimeRampControlTimerCtr >= BLOOD_PRIME_RAMPING_INTERVAL )
         {
+            U32 setBPRate = getTreatmentParameterU32( TREATMENT_PARAM_BLOOD_FLOW );
+
             bloodPrimeRampControlTimerCtr = 0;
-            bloodPrimeRampFlowRate_mL_min += bloodPrimeRampStep_mL;
-            setBloodPumpTargetFlowRate( (U32)bloodPrimeRampFlowRate_mL_min, MOTOR_DIR_FORWARD, PUMP_CONTROL_MODE_OPEN_LOOP );
+            if ( bloodPrimeRampFlowRate_mL_min < (F32)setBPRate )
+            {
+                bloodPrimeRampFlowRate_mL_min += bloodPrimeRampStep_mL;
+                setBloodPumpTargetFlowRate( (U32)bloodPrimeRampFlowRate_mL_min, MOTOR_DIR_FORWARD, PUMP_CONTROL_MODE_OPEN_LOOP );
+            }
         }
     }