Index: firmware/App/Modes/ModePostTreat.c
===================================================================
diff -u -raffb34c0722058c3e1ac79c2882c925ee7de49d6 -r5153afc318dad6b9a469aaba20b8746994f5c70d
--- firmware/App/Modes/ModePostTreat.c	(.../ModePostTreat.c)	(revision affb34c0722058c3e1ac79c2882c925ee7de49d6)
+++ firmware/App/Modes/ModePostTreat.c	(.../ModePostTreat.c)	(revision 5153afc318dad6b9a469aaba20b8746994f5c70d)
@@ -236,6 +236,9 @@
     treatmentLogData.heparinPreStop_min = getTreatmentParameterU32( TREATMENT_PARAM_HEPARIN_PRE_STOP_TIME );
     treatmentLogData.heparinDeliveredVolume_mL = getSyringePumpVolumeDelivered();
 
+    treatmentLogData.avgArterialPressure_mmHg = getTreatmentAvgArterialPressure();
+    treatmentLogData.avgVenousPressure_mmHg = getTreatmentAvgVenousPressure();
+
     treatmentLogData.waterSampleTestResult = (U32)getSampleWaterResult();
 }
 
Index: firmware/App/Modes/ModeTreatment.c
===================================================================
diff -u -r6f2218c22e666aec059afbd60f3d0d268b305ad0 -r5153afc318dad6b9a469aaba20b8746994f5c70d
--- firmware/App/Modes/ModeTreatment.c	(.../ModeTreatment.c)	(revision 6f2218c22e666aec059afbd60f3d0d268b305ad0)
+++ firmware/App/Modes/ModeTreatment.c	(.../ModeTreatment.c)	(revision 5153afc318dad6b9a469aaba20b8746994f5c70d)
@@ -117,6 +117,8 @@
 static F32 treatmentBloodFlowRateTotal_mL_min;                  ///< Blood flow rate total per treatment logged every second.
 static F32 treatmentDialysateFlowRateTotal_mL_min;              ///< Dialysate flow rate total per treatment logged every second.
 static F32 treatmentDialysateTempTotal_degree_C;                ///< Dialysate temperature total per treatment logged every second.
+static F32 treatmentArterialPressureTotal_mmHg;                 ///< Arterial pressure total per treatment logged every second.
+static F32 treatmentVenousPressureTotal_mmHg;                   ///< Venous pressure total per treatment logged every second.
 static BOOL sendLastTreatmentPeriodicData;                      ///< Flag determines if HD needs to send the last treatment periodic data.
 
 static U32 treatmentStartTimeStamp;                             ///< Treatment start timestampt for logging purpose.
@@ -181,6 +183,8 @@
     treatmentBloodFlowRateTotal_mL_min = 0.0;
     treatmentDialysateFlowRateTotal_mL_min = 0.0;
     treatmentDialysateTempTotal_degree_C = 0.0;
+    treatmentArterialPressureTotal_mmHg = 0.0;
+    treatmentVenousPressureTotal_mmHg = 0.0;
     sendLastTreatmentPeriodicData = FALSE;
 
     treatmentStartTimeStamp = getRTCTimestamp();
@@ -414,6 +418,48 @@
 
 /*********************************************************************//**
  * @brief
+ * The getTreatmentAvgArterialPressure function returns the average arterial
+ * pressure collected through out the treatment.
+ * @details Inputs: treatmentTimeMS, treatmentArterialPressureTotal_mmHg
+ * @details Outputs: none
+ * @return the average arterial pressure
+ *************************************************************************/
+F32 getTreatmentAvgArterialPressure( void )
+{
+    U32 const numberOfDataPoint = ( treatmentTimeMS / TREATMENT_PERIODIC_DATA_LOG_INTERVAL );
+    F32 result = 0.0;
+
+    if ( numberOfDataPoint > 0 )
+    {
+        result = ( treatmentArterialPressureTotal_mmHg / numberOfDataPoint );
+    }
+
+    return result;
+}
+
+/*********************************************************************//**
+ * @brief
+ * The getTreatmentAvgVenousPressure function returns the average venous
+ * pressure collected through out the treatment.
+ * @details Inputs: treatmentTimeMS, treatmentVenousPressureTotal_mmHg
+ * @details Outputs: none
+ * @return the average venous pressure
+ *************************************************************************/
+F32 getTreatmentAvgVenousPressure( void )
+{
+    U32 const numberOfDataPoint = ( treatmentTimeMS / TREATMENT_PERIODIC_DATA_LOG_INTERVAL );
+    F32 result = 0.0;
+
+    if ( numberOfDataPoint > 0 )
+    {
+        result = ( treatmentVenousPressureTotal_mmHg / numberOfDataPoint );
+    }
+
+    return result;
+}
+
+/*********************************************************************//**
+ * @brief
  * The getTreatmentStartTimeStamp function returns the treatment start
  * time stamp.
  * @details Inputs: treatmentStartTimeStamp
@@ -1391,15 +1437,20 @@
 
     if ( timeElapsedSinceLastCollect_ms >= TREATMENT_PERIODIC_DATA_LOG_INTERVAL )
     {
+        F32 const arterialPres = getMeasuredArterialPressure();
+        F32 const venousPres = getMeasuredArterialPressure();
+
         lastTreatmentPeriodicDataCollectTimeStamp = treatmentTimeMS;
         bloodFlowRateSum_mL_min += getMeasuredBloodFlowRate();
         dialysateFlowRateSum_mL_min += getMeasuredDialInFlowRate();
-        arterialPressureSum_mmHg += getMeasuredArterialPressure();
-        venousPressureSum_mmHg += getMeasuredVenousPressure();
+        arterialPressureSum_mmHg += arterialPres;
+        venousPressureSum_mmHg += venousPres;
 
         treatmentBloodFlowRateTotal_mL_min += getMeasuredBloodFlowRate();
         treatmentDialysateFlowRateTotal_mL_min += getMeasuredDialInFlowRate();
         treatmentDialysateTempTotal_degree_C += getDialysateTemperature();
+        treatmentArterialPressureTotal_mmHg += arterialPres;
+        treatmentVenousPressureTotal_mmHg += venousPres;
     }
 
     if ( ( timeElapsedSinceLastPublish_ms >= TREATMENT_PERIODIC_DATA_PUB_INTERVAL ) || ( TRUE == sendLastTreatmentPeriodicData ) )
Index: firmware/App/Modes/ModeTreatment.h
===================================================================
diff -u -r6f2218c22e666aec059afbd60f3d0d268b305ad0 -r5153afc318dad6b9a469aaba20b8746994f5c70d
--- firmware/App/Modes/ModeTreatment.h	(.../ModeTreatment.h)	(revision 6f2218c22e666aec059afbd60f3d0d268b305ad0)
+++ firmware/App/Modes/ModeTreatment.h	(.../ModeTreatment.h)	(revision 5153afc318dad6b9a469aaba20b8746994f5c70d)
@@ -111,9 +111,13 @@
 void setRinsebackIsCompleted( BOOL flag );                          // Set whether a rinseback has been completed (T blocks rinseback option)
 BOOL getBloodIsPrimed( void );                                      // Determine whether the blood-side circuit of the dialyzer has been primed with blood
 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)
-F32  getTreatmentAvgBloodFlowRate( void );                          // Get the treatment average blood flow rate during treatment
-F32  getTreatmentAvgDialysateFlowRate( void );                      // Get the treatment average dialysate flow rate during treatment
-F32  getTreatmentAvgDialysateTemp( void );                          // Get the treatment average dialysate temperature during treatment
+
+F32  getTreatmentAvgBloodFlowRate( void );                          // Get the average blood flow rate during treatment
+F32  getTreatmentAvgDialysateFlowRate( void );                      // Get the average dialysate flow rate during treatment
+F32  getTreatmentAvgDialysateTemp( void );                          // Get the average dialysate temperature during treatment
+F32  getTreatmentAvgArterialPressure( void );                       // Get the average arterial pressure during treatment
+F32  getTreatmentAvgVenousPressure( void );                         // Get the average venous pressure during treatment
+
 U32  getTreatmentStartTimeStamp( void );                            // Get the treatment start time stamp
 U32  getTreatmentEndTimeStamp( void );                              // Get the treatment end time stamp