Index: firmware/App/Monitors/Pressures.c
===================================================================
diff -u -reef41b7363d82763095a1317f1757f360f0d9ec1 -rf8531a3d3a626d68f6f4c5a01babadbdfa7dc1ab
--- firmware/App/Monitors/Pressures.c	(.../Pressures.c)	(revision eef41b7363d82763095a1317f1757f360f0d9ec1)
+++ firmware/App/Monitors/Pressures.c	(.../Pressures.c)	(revision f8531a3d3a626d68f6f4c5a01babadbdfa7dc1ab)
@@ -484,10 +484,10 @@
     if ( PRESSURE_LIMITS_STATE_STABLE == currPresLimitsState )
     {
         // apply pressure windows when stable
-        S32 artOffset = getTreatmentParameterS32( TREATMENT_PARAM_ART_PRES_LIMIT_WINDOW ) / 2;
-        S32 venMinOffset = getTreatmentParameterS32( TREATMENT_PARAM_VEN_PRES_LIMIT_ASYMMETRIC );
-        S32 venMaxOffset = getTreatmentParameterS32( TREATMENT_PARAM_VEN_PRES_LIMIT_WINDOW ) - venMinOffset;
-        S32 tmpOffset =  getTreatmentParameterS32( TREATMENT_PARAM_TMP_PRES_LIMIT_WINDOW ) / 2;
+        S32 artOffset = getTreatmentParameterU32( TREATMENT_PARAM_ART_PRES_LIMIT_WINDOW ) / 2;
+        S32 venMinOffset = getTreatmentParameterU32( TREATMENT_PARAM_VEN_PRES_LIMIT_ASYMMETRIC );
+        S32 venMaxOffset = getTreatmentParameterU32( TREATMENT_PARAM_VEN_PRES_LIMIT_WINDOW ) - venMinOffset;
+        S32 tmpOffset =  getTreatmentParameterU32( TREATMENT_PARAM_TMP_PRES_LIMIT_WINDOW ) / 2;
 
         currentArterialMinLimit = stableArterialPressure - artOffset;
         currentArterialMinLimit = MAX( currentArterialMinLimit, ARTERIAL_PRESSURE_LIMIT_MIN_MMHG );