Index: firmware/App/Modes/ModeTreatmentParams.c
===================================================================
diff -u -r8c8ac9430cbd0a836b51d16a02457575861c5990 -re3f3b5c3552008d58e328ce0d78f2db01cda2b45
--- firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision 8c8ac9430cbd0a836b51d16a02457575861c5990)
+++ firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision e3f3b5c3552008d58e328ce0d78f2db01cda2b45)
@@ -45,7 +45,8 @@
 #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.
+#define INSTIT_MAX_MIN_VEN_PRES_WIDE_LIMIT_MMHG 400                     ///< Institutional record max min venous pressure wide limit in mmHg.
+#define INSTIT_MIN_MIN_VEN_PRES_WIDE_LIMIT_MMHG 0                       ///< Institutional record min min venous pressure wide limit in mmHg.
 
 /// Record for range and default of treatment parameters.
 typedef struct
@@ -958,7 +959,7 @@
  * @details Outputs: none
  * @return the min venous pressure wide limit window in mmHg.
  *************************************************************************/
-U32  getMinVenousPressureWideValueMMHG( void )
+S32  getMinVenousPressureWideValueMMHG( void )
 {
     return hdInstitutionalRecord.minVenPressWideLimitWindowMMHG;
 }
@@ -1046,8 +1047,8 @@
     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 );
+    result &= ( ( nvInstRcrd->minVenPressWideLimitWindowMMHG         <= INSTIT_MAX_MIN_VEN_PRES_WIDE_LIMIT_MMHG )                                 &&
+                ( nvInstRcrd->minVenPressWideLimitWindowMMHG         >= INSTIT_MIN_MIN_VEN_PRES_WIDE_LIMIT_MMHG )                                 ? TRUE : FALSE );
 
     return result;
 }