Index: firmware/App/Services/TxParams.c
===================================================================
diff -u -ra1f14a4e422f94b6bc25d1b91839761e7e1196d7 -rc34ad5cb83749cca78001409699a1fecf1436b7f
--- firmware/App/Services/TxParams.c	(.../TxParams.c)	(revision a1f14a4e422f94b6bc25d1b91839761e7e1196d7)
+++ firmware/App/Services/TxParams.c	(.../TxParams.c)	(revision c34ad5cb83749cca78001409699a1fecf1436b7f)
@@ -487,6 +487,7 @@
     BOOL paramsAreInRange, paramsAreConsistent, isUFValid;
     BOOL result = FALSE;
     BOOL paramsConfirmed = FALSE;
+    BOOL rxQdOrTempUpdated = FALSE;
     TREATMENT_PARAMS_DATA_RESPONSE_PAYLOAD_T params;
     U32 rejReasons[ NUM_OF_TREATMENT_PARAMS ];
 
@@ -524,6 +525,14 @@
             TREATMENT_PARAM_T param;
 
             paramsAreInvalid = FALSE;
+            if ( ( FALSE == validTreatParamsReceived ) ||
+                 ( stagedParams[ TREATMENT_PARAM_DIALYSATE_FLOW ].uInt !=
+                   getTreatmentParameterU32( TREATMENT_PARAM_DIALYSATE_FLOW ) ) ||
+                 ( fabs( stagedParams[ TREATMENT_PARAM_DIALYSATE_TEMPERATURE ].sFlt -
+                         getTreatmentParameterF32( TREATMENT_PARAM_DIALYSATE_TEMPERATURE ) ) >= NEARLY_ZERO ) )
+            {
+                rxQdOrTempUpdated = TRUE;
+            }
             validTreatParamsReceived = TRUE;    // direct confirmation, no validation state exists now
             if ( TRUE == paramsConfirmed )
             {
@@ -535,6 +544,10 @@
             {
                 setCriticalData( &treatmentParameters[ param ], stagedParams[ param ] );
             }
+            if ( ( MODE_PRET == getCurrentOperationMode() ) && ( TRUE == rxQdOrTempUpdated ) )
+            {
+                signalPreTreatmentRxUpdated();
+            }
             // Send latest and final treatment parameters to UI
             sendMessage( MSG_ID_TD_VALIDATED_TREATMENT_PARAMS, COMM_BUFFER_OUT_CAN_TD_2_UI, (U08*)(&stagedParams), sizeof( TREATMENT_PARAMS_DATA_RESPONSE_PAYLOAD_T ) );
         }