Index: firmware/App/Controllers/PresOccl.c
===================================================================
diff -u -rfba69244d94307e50fefaa1e88bcbb979584461e -r8c8ac9430cbd0a836b51d16a02457575861c5990
--- firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision fba69244d94307e50fefaa1e88bcbb979584461e)
+++ firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision 8c8ac9430cbd0a836b51d16a02457575861c5990)
@@ -79,7 +79,6 @@
 #define VENOUS_PRESSURE_MAX_MMHG            ( 2000.0F )                                     ///< Maximum venous pressure reading (in mmHg) for range check.
 #define VENOUS_PRESSURE_MIN_MMHG            ( -1500.0F )                                    ///< Minimum venous pressure reading (in mmHg) for range check.
 #define VENOUS_PRESSURE_LIMIT_MAX_MMHG      ( 400.0F )                                      ///< Maximum venous pressure limit (in mmHg).
-#define VENOUS_PRESSURE_LIMIT_MIN_MMHG      (  0.0F )                                       ///< Minimum venous pressure limit (in mmHg).
 #define VENOUS_PRESSURE_OCCL_OFFSET_MMHG    ( 50.0F )                                       ///< Venous pressure occlusion threshold offset from max alarm limit (in mmHg).
 #define VENOUS_PRESSURE_EXEMPTION_PERIOD    ( ( 2 * MS_PER_SECOND ) /  \
                                                TASK_GENERAL_INTERVAL )                      ///< Venous pressure low exemption period (in task interval) after fill for all blood flow rate
@@ -443,7 +442,7 @@
     currentArterialMaxLimit = (S32)ARTERIAL_PRESSURE_LIMIT_MAX_MMHG;
     currentArterialMinLimit = (S32)ARTERIAL_PRESSURE_LIMIT_MIN_MMHG;
     currentVenousMaxLimit   = (S32)VENOUS_PRESSURE_LIMIT_MAX_MMHG;
-    currentVenousMinLimit   = (S32)VENOUS_PRESSURE_LIMIT_MIN_MMHG;
+    currentVenousMinLimit   = (S32)getMinVenousPressureWideValueMMHG();
 }
 
 /*********************************************************************//**
@@ -539,16 +538,17 @@
          ( PRESSURE_LIMITS_STATE_STABILIZATION_2 == currPresLimitsState ) )
     {
         // apply pressure windows when stable
-        S32 artOffset = getTreatmentParameterS32( TREATMENT_PARAM_ART_PRES_LIMIT_WINDOW ) / 2;                // Arterial is symmetric
-        S32 venMinOffset = getTreatmentParameterS32( TREATMENT_PARAM_VEN_PRES_LIMIT_ASYMMETRIC );             // Venous is asymmetric
-        S32 venMaxOffset = getTreatmentParameterS32( TREATMENT_PARAM_VEN_PRES_LIMIT_WINDOW ) - venMinOffset;
+        S32 artOffset           = getTreatmentParameterS32( TREATMENT_PARAM_ART_PRES_LIMIT_WINDOW ) / 2;             // Arterial is symmetric
+        S32 venMinOffset        = getTreatmentParameterS32( TREATMENT_PARAM_VEN_PRES_LIMIT_ASYMMETRIC );             // Venous is asymmetric
+        S32 venMaxOffset        = getTreatmentParameterS32( TREATMENT_PARAM_VEN_PRES_LIMIT_WINDOW ) - venMinOffset;
+        U32 venMinWideLimitMMHG = getMinVenousPressureWideValueMMHG();
 
         currentArterialMinLimit = stableArterialPressure - artOffset;
         currentArterialMinLimit = MAX( currentArterialMinLimit, ARTERIAL_PRESSURE_LIMIT_MIN_MMHG );
         currentArterialMaxLimit = stableArterialPressure + artOffset;
         currentArterialMaxLimit = MIN( currentArterialMaxLimit, ARTERIAL_PRESSURE_LIMIT_MAX_MMHG );
         currentVenousMinLimit   = stableVenousPressure - venMinOffset;
-        currentVenousMinLimit   = MAX( currentVenousMinLimit, VENOUS_PRESSURE_LIMIT_MIN_MMHG );
+        currentVenousMinLimit   = MAX( currentVenousMinLimit, venMinWideLimitMMHG );
         currentVenousMaxLimit   = stableVenousPressure + venMaxOffset;
         currentVenousMaxLimit   = MIN( currentVenousMaxLimit, VENOUS_PRESSURE_LIMIT_MAX_MMHG );
     }
Index: firmware/App/Modes/ModeTreatmentParams.c
===================================================================
diff -u -r592af09c58d6270e3f6b3ebc3ce87147ba9ea3c1 -r8c8ac9430cbd0a836b51d16a02457575861c5990
--- firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision 592af09c58d6270e3f6b3ebc3ce87147ba9ea3c1)
+++ firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision 8c8ac9430cbd0a836b51d16a02457575861c5990)
@@ -45,6 +45,7 @@
 #define INSTIT_CHEM_DISINFECT_ENABLE_RANGE      1                       ///< Institutional record chemical disinfect enable/disable allowable range
 #define INSTIT_MIN_RO_REJECTION_RATIO_MAX_PCT   99                      ///< Institutional record min RO rejection ratio maximum in percent.
 #define INSTIT_MAX_INLET_WATER_COND_ALARM_USPCM 300.0F                  ///< Institutional record max inlet water conductivity alarm in uS/cm.
+#define INSTIT_MAX_MIN_VEN_PRES_WIDE_LIMIT_MMHG 20                      ///< Institutional record max min venous pressure wide limit in mmHg.
 
 /// Record for range and default of treatment parameters.
 typedef struct
@@ -951,6 +952,19 @@
 
 /*********************************************************************//**
  * @brief
+ * The getMinVenousPressureWideValueMMHG function returns the min venous
+ * pressure wide limit window in mmHg.
+ * @details Inputs: hdInstitutionalRecord
+ * @details Outputs: none
+ * @return the min venous pressure wide limit window in mmHg.
+ *************************************************************************/
+U32  getMinVenousPressureWideValueMMHG( void )
+{
+    return hdInstitutionalRecord.minVenPressWideLimitWindowMMHG;
+}
+
+/*********************************************************************//**
+ * @brief
  * The isNVInstitutionalRecordInRange function checks whether all the
  * institutional NV records are valid and within range or not.
  * @details Inputs: none
@@ -1032,6 +1046,8 @@
     result &= ( ( nvInstRcrd->minRORejectionRatioPCT           <= INSTIT_MIN_RO_REJECTION_RATIO_MAX_PCT )                                         ? TRUE : FALSE );
     result &= ( ( nvInstRcrd->minInletWaterCondAlarmLimitUSPCM >= 0.0F )                                                                          &&
                 ( nvInstRcrd->minInletWaterCondAlarmLimitUSPCM <= INSTIT_MAX_INLET_WATER_COND_ALARM_USPCM )                                       ? TRUE : FALSE );
+    // NOTE: min venous and arterial pressure wide limits are not needed to be >= 0 because it is a U32
+    result &= ( ( nvInstRcrd->minVenPressWideLimitWindowMMHG   <= INSTIT_MAX_MIN_VEN_PRES_WIDE_LIMIT_MMHG )                                       ? TRUE : FALSE );
 
     return result;
 }
Index: firmware/App/Modes/ModeTreatmentParams.h
===================================================================
diff -u -rfba69244d94307e50fefaa1e88bcbb979584461e -r8c8ac9430cbd0a836b51d16a02457575861c5990
--- firmware/App/Modes/ModeTreatmentParams.h	(.../ModeTreatmentParams.h)	(revision fba69244d94307e50fefaa1e88bcbb979584461e)
+++ firmware/App/Modes/ModeTreatmentParams.h	(.../ModeTreatmentParams.h)	(revision 8c8ac9430cbd0a836b51d16a02457575861c5990)
@@ -114,6 +114,7 @@
 S32  getS32DefaultTreatmentParamEdge( TREATMENT_PARAM_T param, BOOL isMin );
 U32  getU32DefaultTreatmentParamEdge( TREATMENT_PARAM_T param, BOOL isMin );
 F32  getF32DefaultTreatmentParamEdge( TREATMENT_PARAM_T param, BOOL isMin );
+U32  getMinVenousPressureWideValueMMHG( void );
 
 BOOL isNVInstitutionalRecordInRange( HD_INSTITUTIONAL_RECORD_T* nvInstRcrd );       // Is non-volatile memory institutional record in range
 void setNVInstitutionalRecordToTxParamsRecord( HD_INSTITUTIONAL_RECORD_T* nvInstitutionalRecord ); // Set the recently received institution record from NV to local tx parameters