Index: firmware/App/Modes/ModeTreatment.h
===================================================================
diff -u -ra21a04cc7f2624b9c74992a8e918b71933802dd6 -r933a18d740285e70be9d00696ed0f5a5381bc8e4
--- firmware/App/Modes/ModeTreatment.h	(.../ModeTreatment.h)	(revision a21a04cc7f2624b9c74992a8e918b71933802dd6)
+++ firmware/App/Modes/ModeTreatment.h	(.../ModeTreatment.h)	(revision 933a18d740285e70be9d00696ed0f5a5381bc8e4)
@@ -32,6 +32,49 @@
 
 // ********** public definitions **********
 
+/// Payload record structure for a treatment time status message.
+typedef struct
+{
+    U32 treatmentTimePrescribedinSec;
+    U32 treatmentTimeElapsedinSec;
+    U32 treatmentTimeRemaininginSec;
+} TREATMENT_TIME_DATA_T;
+
+/// Payload record structure for a treatment state message.
+typedef struct
+{
+    U32 treatmentSubMode;
+    U32 uFState;
+    U32 salineBolusState;
+} TREATMENT_STATE_DATA_T;
+
+/// Payload record structure for an ultrafiltration volume change confirmation message.
+typedef struct
+{
+    F32 volume_mL;
+    U32 adjustType;
+} UF_SETTINGS_CHANGE_CONFIRMATION_PAYLOAD_T;
+
+/// Payload record structure for the in-line pressure limits change request.
+typedef struct
+{
+    S32 artLowLimit;
+    S32 artHighLimit;
+    S32 venLowLimit;
+    S32 venHighLimit;
+} PRESSURE_LIMIT_CHANGE_REQUEST_T;
+
+/// Payload record structure for the in-line pressure limits change response.
+typedef struct
+{
+    BOOL accepted;
+    U32  rejReasonCode;
+    S32  artLowLimit;
+    S32  artHighLimit;
+    S32  venLowLimit;
+    S32  venHighLimit;
+} PRESSURE_LIMIT_CHANGE_RESPONSE_T;
+
 // ********** private function prototypes **********
 
 void initTreatmentMode( void );             // initialize this module
@@ -47,6 +90,7 @@
 BOOL verifyUFSettingsChange( F32 uFVolume );
 BOOL verifyUFSettingsConfirmation( F32 uFVolume, U32 adjustment );
 BOOL verifyBloodAndDialysateRateSettingsChange( U32 bloodRate, U32 dialRate );
+BOOL verifyPressureLimitsChange( PRESSURE_LIMIT_CHANGE_REQUEST_T *data );
 
 /**@}*/