Index: firmware/App/Modes/ModeTreatment.h
===================================================================
diff -u -r9c833ef5623ce842267e284d958820ac0dc3a7fc -r52787cd53986cfd0abb7e674bf096898e5070f9a
--- firmware/App/Modes/ModeTreatment.h	(.../ModeTreatment.h)	(revision 9c833ef5623ce842267e284d958820ac0dc3a7fc)
+++ firmware/App/Modes/ModeTreatment.h	(.../ModeTreatment.h)	(revision 52787cd53986cfd0abb7e674bf096898e5070f9a)
@@ -85,6 +85,15 @@
     U32 ufState;                                                    ///< Ultrafiltration state.
 } UF_DATA_PAYLOAD_T;
 
+/// Payload record structure for isolated UF data broadcast messages.
+typedef struct
+{
+    U32 mDuration;                                              ///< Isolated UF duration in minutes.
+    U32 mSetVolume;                                             ///< Isolated UF set volume in mL.
+    U32 mVolumeDelivered;                                       ///< Isolated UF volume delivered in mL.
+    U32 mRate;                                                  ///< Isolated UF rate in mL/min.
+} ISOLATED_UF_DATA_PAYLOAD_T;
+
 /// Payload record structure for the in-line pressure limits change response.
 typedef struct
 {
@@ -126,6 +135,15 @@
 U32  getTreatmentStartTimeStamp( void );                             // Get the treatment start time stamp
 U32  getTreatmentEndTimeStamp( void );                               // Get the treatment end time stamp
 
+BOOL setIsolatedUFSettings( U32 durationMin, F32 ufVolumeMl );      // Set isolated UF duration, goal, and rate
+void signalStartIsolatedUF( BOOL midTreatment );                    // Request transition to isolated UF
+BOOL isIsolatedUFMidTreatment( void );                              // Determine whether isolated UF was started during HD/HDF
+U32  getIsolatedUFDurationMin( void );                              // Get isolated UF duration
+F32  getIsolatedUFSetVolumeMl( void );                              // Get isolated UF set volume
+F32  getIsolatedUFRateMlMin( void );                                // Get isolated UF rate
+U32  getCumulativeIsolatedUFTimeMin( void );                        // Get cumulative completed isolated UF time in minutes
+F32  getCumulativeIsolatedUFVolumeMl( void );                       // Get cumulative completed isolated UF volume in mL
+
 // MSG_ID_TD_PRESSURE_LIMITS_CHANGE_RESPONSE
 BOOL sendPressureLimitsChangeResponse( PRESSURE_LIMIT_CHANGE_RESPONSE_T *data );