Index: firmware/App/Controllers/SyringePump.c
===================================================================
diff -u -rbb80dbac26147ab08413efa91007f7ffed43c38f -r6f9114398c3d37f2b17fff8fdb7f2b2c9bfc6a4b
--- firmware/App/Controllers/SyringePump.c	(.../SyringePump.c)	(revision bb80dbac26147ab08413efa91007f7ffed43c38f)
+++ firmware/App/Controllers/SyringePump.c	(.../SyringePump.c)	(revision 6f9114398c3d37f2b17fff8fdb7f2b2c9bfc6a4b)
@@ -176,7 +176,8 @@
 static S32 syringePumpPosition1SecAgo;                                          ///< Position recorded at last 1 Hz speed check.
 
 static BOOL syringePumpRetractRequested;                                        ///< Flag indicates a retract operation is requested.
-static BOOL syringePumpPrimeRequested;                                          ///< Flag indicates plunger seek and Heparin prime operations are requested.
+static BOOL syringePumpSeekRequested;                                           ///< Flag indicates a plunger seek operation is requested.
+static BOOL syringePumpPrimeRequested;                                          ///< Flag indicates a Heparin prime operation is requested.
 static BOOL syringePumpBolusRequested;                                          ///< Flag indicates start or resume of a Heparin bolus operation is requested.
 static BOOL syringePumpContinuousRequested;                                     ///< Flag indicates start or resume of a Heparin continuous delivery operation is requested.
 static BOOL syringePumpDACVrefSetRequested;                                     ///< Flag indicates request to set DAC Vref for force sensor.
@@ -265,6 +266,7 @@
 static void resetSyringePumpRequestFlags( void )
 {
     syringePumpRetractRequested = FALSE;
+    syringePumpSeekRequested = FALSE;;;
     syringePumpPrimeRequested = FALSE;
     syringePumpBolusRequested = FALSE;
     syringePumpContinuousRequested = FALSE;
@@ -399,17 +401,35 @@
 
 /*********************************************************************//**
  * @brief
- * The primeSyringePump function requests plunger seek and prime operations.
+ * The seekSyringePlunger function requests plunger seek operation.
  * @details Inputs: syringePumpState
- * @details Outputs: syringePumpSetRate, syringePumpBolusRequested
+ * @details Outputs: syringePumpSetRate, syringePumpSeekRequested
  * @return TRUE if request accepted, FALSE if not
  *************************************************************************/
-BOOL primeSyringePump( void )
+BOOL seekSyringePlunger( void )
 {
     if ( ( SYRINGE_PUMP_OFF_STATE == syringePumpState ) && ( TRUE == isSyringeDetected() ) &&
          ( TRUE == isSyringePumpHome() ) && ( heparinDeliveryState != HEPARIN_STATE_OFF ) )
     {
         syringePumpSetRate = SYRINGE_PUMP_SEEK_RATE;
+        syringePumpSeekRequested = TRUE;
+    }
+
+    return syringePumpSeekRequested;
+}
+
+/*********************************************************************//**
+ * @brief
+ * The primeSyringePump function requests a prime operation.
+ * @details Inputs: syringePumpState
+ * @details Outputs: syringePumpSetRate, syringePumpPrimeRequested
+ * @return TRUE if request accepted, FALSE if not
+ *************************************************************************/
+BOOL primeSyringePump( void )
+{
+    if ( ( SYRINGE_PUMP_OFF_STATE == syringePumpState ) && ( TRUE == isSyringeDetected() ) && ( heparinDeliveryState != HEPARIN_STATE_OFF ) )
+    {
+        syringePumpSetRate = SYRINGE_PUMP_PRIME_RATE;
         syringePumpPrimeRequested = TRUE;
     }
 
@@ -869,10 +889,14 @@
     {
         result = SYRINGE_PUMP_RETRACT_STATE;
     }
-    else if ( TRUE == syringePumpPrimeRequested )
+    else if ( TRUE == syringePumpSeekRequested )
     {
         result = SYRINGE_PUMP_SEEK_STATE;
     }
+    else if ( TRUE == syringePumpPrimeRequested )
+    {
+        result = SYRINGE_PUMP_PRIME_STATE;
+    }
     else if ( TRUE == syringePumpBolusRequested )
     {
         heparinDeliveryState = HEPARIN_STATE_INITIAL_BOLUS;
@@ -974,14 +998,10 @@
     // Is plunger contact detected?
     if ( getSyringePumpForceV() >= SYRINGE_FORCE_PLUNGER_THRESHOLD_V )
     {
+        stopPump = TRUE;
         syringePumpPlungerFound = TRUE;
         syringePumpVolumeDelivered.data = 0.0;
         syringePumpVolumeStartPosition = syringePumpPosition.data;
-        syringePumpSetRate = SYRINGE_PUMP_PRIME_RATE;
-        // Calculate target FPGA rate from set rate in mL/hr converted to microstep toggle interval in uSec
-        calcStepperToggleTimeForTargetRate( syringePumpSetRate );
-        setFPGASyringePumpStepToggleTime( syringePumpRampUpToggleTime );
-        result = SYRINGE_PUMP_PRIME_STATE;
     }
 
     // Has syringe been removed?
@@ -1517,7 +1537,11 @@
                 result = retractSyringePump();
                 break;
 
-            case SYRINGE_PUMP_OP_SEEK_AND_PRIME:
+            case SYRINGE_PUMP_OP_SEEK:
+                result = seekSyringePlunger();
+                break;
+
+            case SYRINGE_PUMP_OP_PRIME:
                 result = primeSyringePump();
                 break;
 
Index: firmware/App/Controllers/SyringePump.h
===================================================================
diff -u -rbb80dbac26147ab08413efa91007f7ffed43c38f -r6f9114398c3d37f2b17fff8fdb7f2b2c9bfc6a4b
--- firmware/App/Controllers/SyringePump.h	(.../SyringePump.h)	(revision bb80dbac26147ab08413efa91007f7ffed43c38f)
+++ firmware/App/Controllers/SyringePump.h	(.../SyringePump.h)	(revision 6f9114398c3d37f2b17fff8fdb7f2b2c9bfc6a4b)
@@ -37,9 +37,10 @@
 {
     SYRINGE_PUMP_OP_STOP = 0,
     SYRINGE_PUMP_OP_RETRACT = 1,
-    SYRINGE_PUMP_OP_SEEK_AND_PRIME = 2,
-    SYRINGE_PUMP_OP_BOLUS = 3,
-    SYRINGE_PUMP_OP_CONTINUOUS = 4,
+    SYRINGE_PUMP_OP_SEEK = 2,
+    SYRINGE_PUMP_OP_PRIME = 3,
+    SYRINGE_PUMP_OP_BOLUS = 4,
+    SYRINGE_PUMP_OP_CONTINUOUS = 5,
     NUM_OF_SYRINGE_PUMP_OPS
 } SYRINGE_PUMP_OPERATION_T;
 
@@ -75,6 +76,7 @@
 void setHeparinStopped( void );
 void stopSyringePump( void );
 BOOL retractSyringePump( void );
+BOOL seekSyringePlunger( void );
 BOOL primeSyringePump( void );
 BOOL startHeparinBolus( void );
 BOOL startHeparinContinuous( void );
Index: firmware/App/Modes/ModeTreatmentParams.c
===================================================================
diff -u -rbb80dbac26147ab08413efa91007f7ffed43c38f -r6f9114398c3d37f2b17fff8fdb7f2b2c9bfc6a4b
--- firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision bb80dbac26147ab08413efa91007f7ffed43c38f)
+++ firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision 6f9114398c3d37f2b17fff8fdb7f2b2c9bfc6a4b)
@@ -351,7 +351,7 @@
         origTreatmentParams.venousPressureHighLimit_mmHg = getCriticalData( &treatmentParameters[ TREATMENT_PARAM_VEN_PRESSURE_HIGH_LIMIT ] ).sInt;
 
         // If using Heparin in this treatment, set state to stopped otherwise off
-        if ( ( stagedParams[ TREATMENT_PARAM_HEPARIN_BOLUS_VOLUME ] > 0.0 ) || ( stagedParams[ TREATMENT_PARAM_HEPARIN_DISPENSE_RATE ] > 0.0 ) )
+        if ( ( stagedParams[ TREATMENT_PARAM_HEPARIN_BOLUS_VOLUME ].sFlt > 0.0 ) || ( stagedParams[ TREATMENT_PARAM_HEPARIN_DISPENSE_RATE ].sFlt > 0.0 ) )
         {
             setHeparinStopped();
         }