Index: firmware/App/Controllers/PresOccl.c
===================================================================
diff -u -r1d07de4e970f54f2ae1786ef546cf5567df9ba8e -rd521a5bf7b77afeaf2b5593f8c287591cda3385c
--- firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision 1d07de4e970f54f2ae1786ef546cf5567df9ba8e)
+++ firmware/App/Controllers/PresOccl.c	(.../PresOccl.c)	(revision d521a5bf7b77afeaf2b5593f8c287591cda3385c)
@@ -492,13 +492,6 @@
             F32 artHighLimit = (F32)getTreatmentParameterS32( TREATMENT_PARAM_ART_PRESSURE_HIGH_LIMIT );
             BOOL artPresLow, artPresHigh;
 
-            // If BP is ramping up, extend range to outer limits as pressure may not yet have reached expected range.
-            if ( isBloodPumpRampComplete() != TRUE )
-            {
-                artLowLimit = (F32)getS32TreatmentParamLowerRangeLimit( TREATMENT_PARAM_ART_PRESSURE_LOW_LIMIT );
-                artHighLimit = (F32)getS32TreatmentParamUpperRangeLimit( TREATMENT_PARAM_ART_PRESSURE_HIGH_LIMIT );
-            }
-
             artPresLow = ( artPres < artLowLimit ? TRUE : FALSE );
             artPresHigh = ( artPres > artHighLimit ? TRUE : FALSE );
 
@@ -571,13 +564,6 @@
             F32 venHighLimit = (F32)getTreatmentParameterS32( TREATMENT_PARAM_VEN_PRESSURE_HIGH_LIMIT );
             BOOL venPresLow, venPresHigh;
 
-            // If BP is ramping up, extend range to outer limits as pressure may not yet have reached expected range.
-            if ( isBloodPumpRampComplete() != TRUE )
-            {
-                venLowLimit  = MIN_VENOUS_PRESSURE_FOR_RAMP_MMHG;
-                venHighLimit = (F32)getS32TreatmentParamUpperRangeLimit( TREATMENT_PARAM_VEN_PRESSURE_HIGH_LIMIT );
-            }
-
             venPresLow = ( venPres < venLowLimit ? TRUE : FALSE );
             venPresHigh = ( venPres > venHighLimit ? TRUE : FALSE );
 
Index: firmware/App/Modes/ModePreTreat.c
===================================================================
diff -u -rc1b9ac0dbf2196280895d2e440dd7ac288ac8424 -rd521a5bf7b77afeaf2b5593f8c287591cda3385c
--- firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision c1b9ac0dbf2196280895d2e440dd7ac288ac8424)
+++ firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision d521a5bf7b77afeaf2b5593f8c287591cda3385c)
@@ -997,6 +997,12 @@
 {
     HD_PRE_TREATMENT_PAT_CONN_STATE_T nextState = PRE_TREATMENT_PAT_CONN_WAIT_FOR_UF_VOL_STATE;
 
+    // Look for cartridge door to open (indicating user inverting dialyzer)
+    if ( STATE_OPEN == getSwitchStatus( FRONT_DOOR ) )
+    {
+        doorOpened = TRUE;
+    }
+    // If UF volume set by user, move on to next state
     if ( TRUE == setUFVolStatus )
     {
         setUFVolStatus = FALSE;