Index: firmware/App/Modes/StateTxBloodPrime.c
===================================================================
diff -u -r35eaef35568eefc648519dab7e1d8e289dca2f8b -rd3300cbbef016455ac32c08c444087f5a9a1c4c0
--- firmware/App/Modes/StateTxBloodPrime.c	(.../StateTxBloodPrime.c)	(revision 35eaef35568eefc648519dab7e1d8e289dca2f8b)
+++ firmware/App/Modes/StateTxBloodPrime.c	(.../StateTxBloodPrime.c)	(revision d3300cbbef016455ac32c08c444087f5a9a1c4c0)
@@ -439,23 +439,24 @@
 *************************************************************************/
 BOOL bloodPrimeHandleBloodFlowChangeRequest( MESSAGE_T *message )
 {
-    BOOL result   = FALSE;
-    BOOL accepted = FALSE;
+    BOOL result = FALSE;
+    U32 requestedRate = 0;
     REQUEST_REJECT_REASON_CODE_T rejReason = REQUEST_REJECT_REASON_INVALID_REQUEST_FORMAT;
+    UI_RESPONSE_PAYLOAD_T response;
 
+    // Verify message payload length
     if ( sizeof(U32) == message->hdr.payloadLen )
     {
-        U32 requestedRate;
-        memcpy( &requestedRate, message->payload, sizeof(U32) );
-        result = TRUE;
-
-        if ( ( BLOOD_PRIME_RAMP_STATE == bloodPrimeState ) || ( BLOOD_PRIME_RUN_STATE  == bloodPrimeState ) )
+        memcpy( &requestedRate, message->payload, sizeof( U32 ) );
+        if ( ( BLOOD_PRIME_RAMP_STATE   == bloodPrimeState ) || ( BLOOD_PRIME_RUN_STATE    == bloodPrimeState ) || ( BLOOD_PRIME_PAUSED_STATE == bloodPrimeState ) )
         {
-            if ( ( requestedRate >= 50 ) && ( requestedRate <= 500 ) )
+            U32 lowerLimit = getU32TreatmentParamLowerRangeLimit( TREATMENT_PARAM_BLOOD_FLOW );
+            U32 upperLimit = getU32TreatmentParamUpperRangeLimit( TREATMENT_PARAM_BLOOD_FLOW );
+            if ( ( requestedRate >= lowerLimit ) && ( requestedRate <= upperLimit ) )
             {
                 requestedBloodFlowRate_mL_min = requestedRate;
                 pendingFlowChangeRequest      = TRUE;
-                accepted  = TRUE;
+                result    = TRUE;
                 rejReason = REQUEST_REJECT_REASON_NONE;
             }
             else
@@ -465,16 +466,15 @@
         }
         else
         {
-            rejReason = REQUEST_REJECT_REASON_INVALID_COMMAND;
+            rejReason = REQUEST_REJECT_REASON_INVALID_TREATMENT_STATE;
         }
     }
-    {
-        UI_RESPONSE_PAYLOAD_T respPayload;
-        respPayload.accepted        = accepted;
-        respPayload.rejectionReason = rejReason;
-        sendMessage( MSG_ID_TD_TREATMENT_SET_POINT_BLOOD_FLOW_CHANGE_RESPONSE, COMM_BUFFER_OUT_CAN_TD_2_UI, (U08*)(&respPayload), sizeof(UI_RESPONSE_PAYLOAD_T) );
-    }
 
+    // Respond to request
+    response.accepted = result;
+    response.rejectionReason = rejReason;
+    sendMessage( MSG_ID_TD_TREATMENT_SET_POINT_BLOOD_FLOW_CHANGE_RESPONSE, COMM_BUFFER_OUT_CAN_TD_2_UI, (U08*)(&response), sizeof( UI_RESPONSE_PAYLOAD_T ) );
+
     return result;
 }