Index: firmware/App/Modes/ModeTreatment.h
===================================================================
diff -u -r395522dffef1348e176564925656012f529c1910 -r21de8b3dd16fe60299f5bfa5f85b38ee562b7cfb
--- firmware/App/Modes/ModeTreatment.h	(.../ModeTreatment.h)	(revision 395522dffef1348e176564925656012f529c1910)
+++ firmware/App/Modes/ModeTreatment.h	(.../ModeTreatment.h)	(revision 21de8b3dd16fe60299f5bfa5f85b38ee562b7cfb)
@@ -7,8 +7,8 @@
 *
 * @file    ModeTreatment.h
 *
-* @author  (last)      Varshini Nagabooshanam
-* @date    (last)      09-Jan-2026
+* @author  (last)      Raghu Kallala
+* @date    (last)      06-Apr-2026
 *
 * @author  (original)  Sean Nash
 * @date    (original)  21-Apr-2025
@@ -85,36 +85,50 @@
     U32 ufState;                                                    ///< Ultrafiltration state.
 } UF_DATA_PAYLOAD_T;
 
+/// Payload record structure for the in-line pressure limits change response.
+typedef struct
+{
+    BOOL accepted;                                          ///< Accepted.
+    U32  rejReasonCode;                                     ///< Rejection reason code number.
+    U32  artPresLimitWindowmmHg;                            ///< Arterial pressure limit window in mmHg.
+    U32  venPresLimitWindowmmHg;                            ///< Venous pressure limit window in mmHg.
+    U32  venPresLimitAsymmetricmmHg;                        ///< Venous pressure limit asymmetric in mmHg.
+    U32  tmpPresLimitWindowmmHg;                            ///< TMP pressure limit window in mmHg.
+} PRESSURE_LIMIT_CHANGE_RESPONSE_T;
+#pragma pack(pop)
+
 /// Maximum time in this mode before blood sitting alarm given (in general task intervals).
 #define MAX_TIME_BLOOD_SITTING      ( ( 5 * SEC_PER_MIN * MS_PER_SECOND ) / TASK_GENERAL_INTERVAL )
 /// Maximum time in this mode before blood sitting warning given (in general task intervals).
 #define WARN_TIME_BLOOD_SITTING     ( ( 4 * SEC_PER_MIN * MS_PER_SECOND ) / TASK_GENERAL_INTERVAL )
 
-#pragma pack(pop)
-
 // ********** public function prototypes **********
 
-void initTreatmentMode( void );                                     // Initialize this unit
-U32  transitionToTreatmentMode( void );                             // Prepares for transition to treatment mode
-U32  execTreatmentMode( void );                                     // Execute the treatment mode state machine (call from OperationModes)
+void initTreatmentMode( void );                                      // Initialize this unit
+U32  transitionToTreatmentMode( void );                              // Prepares for transition to treatment mode
+U32  execTreatmentMode( void );                                      // Execute the treatment mode state machine (call from OperationModes)
 
-void signalAlarmActionToTreatmentMode( ALARM_ACTION_T action );     // Execute alarm action as appropriate for treatment mode
-void signalEndTreatment( void );                                    // Requesting transition to post-treatment mode
-void signalBloodPrimeToDialysis( void );                            // Blood prime sub-mode is signaling to move on to dialysis sub-mode
+void signalAlarmActionToTreatmentMode( ALARM_ACTION_T action );      // Execute alarm action as appropriate for treatment mode
+void signalEndTreatment( void );                                     // Requesting transition to post-treatment mode
+void signalBloodPrimeToDialysis( void );                             // Blood prime sub-mode is signaling to move on to dialysis sub-mode
 
-void broadcastTreatmentTimeAndState( void );                        // Broadcast the times and states of this treatment
+void broadcastTreatmentTimeAndState( void );                         // Broadcast the times and states of this treatment
+void updateTreatmentBroadcastData( F32 ufRateLhr );                  // Update treatment broadcast data from current treatment parameters
 
-TREATMENT_STATE_T getTreatmentState( void );                        // Determine the current treatment sub-mode (state)
-BOOL isTreatmentCompleted( void );                                  // Determine whether the treatment has completed
-BOOL isTreatmentResumeBlocked( void );                              // Determine whether the treatment is not allowed to be resumed.
-U32  getTreatmentTimeRemainingSecs( void );                         // Determine number of seconds remaining in the treatment
-U32  getActualTreatmentTimeSecs( void );                            // Determine the actual treatment duration in seconds
-void setBloodIsPrimed( BOOL flag );                                 // Set whether the blood-side circuit of the dialyzer has been primed with blood (F causes Tx start/resume to do blood prime first)
-BOOL getBloodIsPrimed( void );                                      // Determine whether the blood-side circuit of the dialyzer has been primed with blood
+TREATMENT_STATE_T getTreatmentState( void );                         // Determine the current treatment sub-mode (state)
+BOOL isTreatmentCompleted( void );                                   // Determine whether the treatment has completed
+BOOL isTreatmentResumeBlocked( void );                               // Determine whether the treatment is not allowed to be resumed.
+U32  getTreatmentTimeRemainingSecs( void );                          // Determine number of seconds remaining in the treatment
+U32  getActualTreatmentTimeSecs( void );                             // Determine the actual treatment duration in seconds
+void setBloodIsPrimed( BOOL flag );                                  // Set whether the blood-side circuit of the dialyzer has been primed with blood (F causes Tx start/resume to do blood prime first)
+BOOL getBloodIsPrimed( void );                                       // Determine whether the blood-side circuit of the dialyzer has been primed with blood
 
-U32  getTreatmentStartTimeStamp( void );                            // Get the treatment start time stamp
-U32  getTreatmentEndTimeStamp( void );                              // Get the treatment end time stamp
+U32  getTreatmentStartTimeStamp( void );                             // Get the treatment start time stamp
+U32  getTreatmentEndTimeStamp( void );                               // Get the treatment end time stamp
 
+// MSG_ID_TD_PRESSURE_LIMITS_CHANGE_RESPONSE
+BOOL sendPressureLimitsChangeResponse( PRESSURE_LIMIT_CHANGE_RESPONSE_T *data );
+
 /**@}*/
 
 #endif