Index: firmware/App/Modes/ModeTreatment.c
===================================================================
diff -u -rf5d4fecd7b937ddf8e8b4ef3372541e79c7a44fc -r93b33e09cf47fabffc3cf93d8693c2b445a90402
--- firmware/App/Modes/ModeTreatment.c	(.../ModeTreatment.c)	(revision f5d4fecd7b937ddf8e8b4ef3372541e79c7a44fc)
+++ firmware/App/Modes/ModeTreatment.c	(.../ModeTreatment.c)	(revision 93b33e09cf47fabffc3cf93d8693c2b445a90402)
@@ -1024,11 +1024,14 @@
          ( CALC_ELAPSED_TREAT_TIME_IN_MIN() < treatmentTime ) && ( treatmentTime >= getMinTreatmentTimeInMinutes() ) )
     {
         F32 uFVolume;
-        U32 dialVolume = getTreatmentParameterU32( TREATMENT_PARAM_DIALYSATE_FLOW ) * treatmentTime;   // In mL
+        U32 dialVolume        = getTreatmentParameterU32( TREATMENT_PARAM_DIALYSATE_FLOW ) * treatmentTime;   // In mL
+        // The minimum treatment time is either in the range of the institutional record or the 1-minute treatment config has been requested which is an exception
+        BOOL isMinTxTimeValid = ( ( treatmentTime >= getU32TreatmentParamLowerRangeLimit( TREATMENT_PARAM_TREATMENT_DURATION ) ) ||
+                                  ( TRUE == getTestConfigStatus( TEST_CONFIG_ENABLE_ONE_MINUTE_TREATMENT ) ) ? TRUE : FALSE );
 
         // Always adjust UF volume to accommodate treatment time change (not UF rate)
         uFVolume = ( (F32)( treatmentTime - CALC_ELAPSED_TREAT_TIME_IN_MIN() ) * presUFRate ) + getUltrafiltrationReferenceVolume();
-        if ( ( treatmentTime >= getU32TreatmentParamLowerRangeLimit( TREATMENT_PARAM_TREATMENT_DURATION ) ) &&
+        if ( ( TRUE == isMinTxTimeValid ) &&
              ( treatmentTime <= getU32TreatmentParamUpperRangeLimit( TREATMENT_PARAM_TREATMENT_DURATION ) ) &&
              ( dialVolume <= MAX_DIALYSATE_VOLUME_ML ) &&
              ( uFVolume <= MAX_UF_VOLUME_ML ) )