Index: firmware/App/Modes/StatePreTxDrySelfTests.c
===================================================================
diff -u -rfdaecc8cba085b8f2a57c8478c6ad800f7303483 -readc0ae426264da75e00f4137c94821e60ec33da
--- firmware/App/Modes/StatePreTxDrySelfTests.c	(.../StatePreTxDrySelfTests.c)	(revision fdaecc8cba085b8f2a57c8478c6ad800f7303483)
+++ firmware/App/Modes/StatePreTxDrySelfTests.c	(.../StatePreTxDrySelfTests.c)	(revision eadc0ae426264da75e00f4137c94821e60ec33da)
@@ -120,8 +120,10 @@
 static U32 arterialPressureStabilizationStartTime;                        ///< Start time for arterial stabilization
 static U32 arterialPressureLeakCheckStartTime;                            ///< Start time for arterial leak check
 static U32 arterialPressureReliefStartTime;                               ///< Start time for arterial pressure relief
+static BOOL authResponseReceived;                                         ///< Indicates UI auth response received
+static BOOL authResponseAccepted;                                         ///< Indicates if authentication is accepted
+static REQUEST_REJECT_REASON_CODE_T authResponseReason;                   ///< Reason for rejection
 
-
 // ********** private function prototypes **********
 
 static void resetSelfTestsFlags( void );
@@ -167,6 +169,9 @@
     cartridgeUsedTestRun                = FALSE;
     occlusionBaselineWasSet             = FALSE;
     heparinOcclusionTestRun             = FALSE;
+    authResponseReceived                = FALSE;
+    authResponseAccepted                = FALSE;
+    authResponseReason                  = REQUEST_REJECT_REASON_NONE;
 }
 
 /*********************************************************************//**
@@ -586,7 +591,7 @@
 * @brief
 * The handleDrySelfTestTubeSetAuthenticationState function handles tube set
 * authentication and processes the authentication response.
-* @details \b Message \b Received: MSG_ID_UI_TUBE_SET_AUTHENTICATION_RESPONSE
+* @details \b Message \b Received: MSG_ID_UI_TUBE_SET_AUTHENTICATION_REQUEST
 * @details \b Message \b Sent: MSG_ID_TD_TUBE_SET_AUTHENTICATION_RESPONSE
 * @details \b Inputs: authResponseReceived, authResponseValidTubeSet,
 * authResponseModalityAccepted
@@ -1203,6 +1208,34 @@
 
 /*********************************************************************//**
 * @brief
+* The drySelfTestHandleTubeSetAuthResponse function handles tube set
+* authentication response.
+* @details \b Message \b Received: MSG_ID_UI_TUBE_SET_AUTHENTICATION_RESPONSE
+* @details \b Inputs: message containing authentication result
+* @details \b Outputs: authResponseReceived, authResponseAccepted,
+* authResponseReason
+* @return TRUE if received authentication response is valid, FALSE if not
+*************************************************************************/
+BOOL drySelfTestHandleTubeSetAuthResponse( MESSAGE_T *message )
+{
+    BOOL result = FALSE;
+
+    if ( sizeof( TUBE_SET_AUTH_RESULT_PAYLOAD_T ) == message->hdr.payloadLen )
+    {
+        TUBE_SET_AUTH_RESULT_PAYLOAD_T payload;
+
+        memcpy( &payload, message->payload, sizeof( TUBE_SET_AUTH_RESULT_PAYLOAD_T ) );
+        authResponseReceived = TRUE;
+        authResponseAccepted = (BOOL)payload.accepted;
+        authResponseReason   = (REQUEST_REJECT_REASON_CODE_T)payload.reason;
+        result = TRUE;
+    }
+
+    return result;
+}
+
+/*********************************************************************//**
+* @brief
 * The transitionToDrySelfTestsState function handles the transition to
 * dry self-test states by setting actuators.
 * @details \b Inputs: none
Index: firmware/App/Modes/StatePreTxDrySelfTests.h
===================================================================
diff -u -rfdaecc8cba085b8f2a57c8478c6ad800f7303483 -readc0ae426264da75e00f4137c94821e60ec33da
--- firmware/App/Modes/StatePreTxDrySelfTests.h	(.../StatePreTxDrySelfTests.h)	(revision fdaecc8cba085b8f2a57c8478c6ad800f7303483)
+++ firmware/App/Modes/StatePreTxDrySelfTests.h	(.../StatePreTxDrySelfTests.h)	(revision eadc0ae426264da75e00f4137c94821e60ec33da)
@@ -45,6 +45,7 @@
 void execDrySelfTests( void );
 
 U32 getDrySelfTestsState( void );
+BOOL drySelfTestHandleTubeSetAuthResponse( MESSAGE_T *message );
 
 void handleDoorCloseAfterCartridgeInsertion( void );
 
Index: firmware/App/Services/Messaging.c
===================================================================
diff -u -r72bc0d5f33dbb07afc8a7cd9015e4861c6c371a1 -readc0ae426264da75e00f4137c94821e60ec33da
--- firmware/App/Services/Messaging.c	(.../Messaging.c)	(revision 72bc0d5f33dbb07afc8a7cd9015e4861c6c371a1)
+++ firmware/App/Services/Messaging.c	(.../Messaging.c)	(revision eadc0ae426264da75e00f4137c94821e60ec33da)
@@ -35,6 +35,7 @@
 #include "PAL.h"
 #include "Pressures.h"
 #include "RotaryValve.h"
+#include "StatePreTxDrySelfTests.h"
 #include "StateTxBloodPrime.h"
 #include "StateTxDialysis.h"
 #include "StateTxPaused.h"
@@ -116,6 +117,7 @@
     { MSG_ID_UI_PRESSURE_LIMIT_WIDEN_REQUEST,                           &pressureLimitHandleWidenRequest },
     { MSG_ID_UI_BLOOD_PRIME_CMD_REQUEST,                                &bloodPrimeHandleCmdRequest },
     { MSG_ID_UI_TREATMENT_SET_POINT_BLOOD_FLOW_CHANGE_REQUEST,          &bloodPrimeHandleBloodFlowChangeRequest },
+    { MSG_ID_UI_TUBE_SET_AUTHENTICATION_REQUEST,                        &drySelfTestHandleTubeSetAuthResponse },
     { MSG_ID_TD_SOFTWARE_RESET_REQUEST,                                 &testTDSoftwareResetRequest },
     { MSG_ID_TD_BUBBLE_OVERRIDE_REQUEST,                                &testBubbleDetectOverride },
     { MSG_ID_TD_BUBBLE_PUBLISH_INTERVAL_OVERRIDE_REQUEST,               &testBubblesDataPublishIntervalOverride },