Index: sources/gui/qml/compounds/BPHREntry.qml
===================================================================
diff -u -r5dce80bb3079b3f0e6e134110e267be3277c3a8d -r3146bf4ecddda5c50e80693ba281955af07f8cf9
--- sources/gui/qml/compounds/BPHREntry.qml	(.../BPHREntry.qml)	(revision 5dce80bb3079b3f0e6e134110e267be3277c3a8d)
+++ sources/gui/qml/compounds/BPHREntry.qml	(.../BPHREntry.qml)	(revision 3146bf4ecddda5c50e80693ba281955af07f8cf9)
@@ -44,6 +44,7 @@
         _bloodPressureSystolic  .isValid
     &&  _bloodPressureDiastolic .isValid
     &&  _heartRate              .isValid
+    &&  _private.isBloodPressureCompareValid
 
     signal clicked()
 
@@ -57,6 +58,10 @@
         }
     }
 
+    QtObject { id: _private
+        property bool isBloodPressureCompareValid : (parseInt(_bloodPressureDiastolic.text) < parseInt(_bloodPressureSystolic.text))
+    }
+
     anchors.horizontalCenter: parent.horizontalCenter
     y : Qt.inputMethod.visible && _keyboard.visible ? _root.topMarginContent : ( ( _root.contentRectHeight - _container.height ) / 2 )
     Behavior on y { NumberAnimation { duration: Variables.keybardAnimationDuration } }
@@ -74,6 +79,7 @@
                     validator   : IntValidator { bottom: vTreatmentVitals.systolicMin;  top : vTreatmentVitals.systolicMax }
                     onClicked   : _root.clicked()
                     nextInput   : _bloodPressureDiastolic
+                    textInput.color: (textInput.acceptableInput && _private.isBloodPressureCompareValid) ? Colors.textMain : Colors.red
                 }
                 Label {
                     text    : "/"
@@ -85,6 +91,7 @@
                     validator   : IntValidator { bottom: vTreatmentVitals.diastolicMin;  top : vTreatmentVitals.diastolicMax }
                     onClicked   : _root.clicked()
                     nextInput   : _heartRate
+                    textInput.color: (textInput.acceptableInput && _private.isBloodPressureCompareValid) ? Colors.textMain : Colors.red
                 }
                 Label {
                     text    : qsTr("mmHg")