diff --git a/zaaReloaded2/Controller/Settings.cs b/zaaReloaded2/Controller/Settings.cs
index 80e391f..c3b27c0 100755
--- a/zaaReloaded2/Controller/Settings.cs
+++ b/zaaReloaded2/Controller/Settings.cs
@@ -108,6 +108,11 @@ namespace zaaReloaded2.Controller
         /// </summary>
         public AbnormalStyle AbnormalStyle { get; set; }
 
+        /// <summary>
+        /// Indicates whether to prefer the more verbose "mmol/l" over "mM".
+        /// </summary>
+        public bool PreferVerboseMolar { get; set; }
+
         /// <summary>
         /// Gets the list of controlling elements.
         /// </summary>
diff --git a/zaaReloaded2/Formatter/Formatter.cs b/zaaReloaded2/Formatter/Formatter.cs
index 653de74..0603b6b 100755
--- a/zaaReloaded2/Formatter/Formatter.cs
+++ b/zaaReloaded2/Formatter/Formatter.cs
@@ -57,7 +57,8 @@ namespace zaaReloaded2.Formatter
                 foreach (TimePoint tp in _laboratory.TimePoints.Values)
                 {
                     _timePointFormatters[tp.TimeStamp] =
-                        new TimePointFormatter(tp, Settings.ReferenceStyle, Settings.AbnormalStyle);
+                        new TimePointFormatter(tp, Settings.ReferenceStyle,
+                            Settings.AbnormalStyle, Settings.PreferVerboseMolar);
                 }
             }
         }
diff --git a/zaaReloaded2/Formatter/ItemFormatter.cs b/zaaReloaded2/Formatter/ItemFormatter.cs
index 408f344..baa76a9 100755
--- a/zaaReloaded2/Formatter/ItemFormatter.cs
+++ b/zaaReloaded2/Formatter/ItemFormatter.cs
@@ -47,6 +47,11 @@ namespace zaaReloaded2.Formatter
         /// </summary>
         public AbnormalStyle AbnormalStyle { get; set; }
 
+        /// <summary>
+        /// Indicates whether to prefer the more verbose "mmol/l" over "mM".
+        /// </summary>
+        public bool PreferVerboseMolar { get; set; }
+
         /// <summary>
         /// Gets or sets a flag that indicates whether this ItemFormatter
         /// has been used, i.e. whether the LabItem was written to a
@@ -86,12 +91,14 @@ namespace zaaReloaded2.Formatter
         /// <param name="labItem">LabItem to wrap in this ItemFormatter.</param>
         public ItemFormatter(LabItem labItem,
             ReferenceStyle referenceStyle,
-            AbnormalStyle abnormalStyle)
+            AbnormalStyle abnormalStyle,
+            bool preferVerboseMolar)
         {
             IncludeMaterial = true;
             LabItem = labItem;
             ReferenceStyle = referenceStyle;
             AbnormalStyle = abnormalStyle;
+            PreferVerboseMolar = preferVerboseMolar;
         }
 
         #endregion
@@ -147,7 +154,12 @@ namespace zaaReloaded2.Formatter
             if (LabItem.HasUnit)
             {
                 string space = LabItem.Unit.StartsWith("/") ? String.Empty : " ";
-                unit = String.Format("{0}{1}", space, LabItem.Unit);
+                unit = LabItem.Unit;
+                if (PreferVerboseMolar)
+                {
+                    unit = LabItem.Unit.Replace("mM", "mmol/l");
+                }
+                unit = String.Format("{0}{1}", space, unit);
             }
             else
             {
diff --git a/zaaReloaded2/Formatter/TimePointFormatter.cs b/zaaReloaded2/Formatter/TimePointFormatter.cs
index 19312d4..0ad7ff0 100755
--- a/zaaReloaded2/Formatter/TimePointFormatter.cs
+++ b/zaaReloaded2/Formatter/TimePointFormatter.cs
@@ -105,14 +105,15 @@ namespace zaaReloaded2.Formatter
         /// used to create ItemFormatter objects.</param>
         public TimePointFormatter(TimePoint timePoint,
             ReferenceStyle referenceStyle,
-            AbnormalStyle abnormalStyle)
+            AbnormalStyle abnormalStyle,
+            bool preferVerboseMolar)
         {
             TimeStamp = timePoint.TimeStamp;
             ItemFormatters = new ItemFormatterDictionary();
             foreach (LabItem item in timePoint.Items.Values)
             {
                 ItemFormatters[item.QualifiedName] = new ItemFormatter(
-                    item, referenceStyle, abnormalStyle);
+                    item, referenceStyle, abnormalStyle, preferVerboseMolar);
             }
         }
 
diff --git a/zaaReloaded2/ViewModels/SettingsViewModel.cs b/zaaReloaded2/ViewModels/SettingsViewModel.cs
index 244a576..c874e25 100755
--- a/zaaReloaded2/ViewModels/SettingsViewModel.cs
+++ b/zaaReloaded2/ViewModels/SettingsViewModel.cs
@@ -185,6 +185,19 @@ namespace zaaReloaded2.ViewModels
             }
         }
 
+        public bool PreferVerboseMolar
+        {
+            get
+            {
+                return _settings.PreferVerboseMolar;
+            }
+            set
+            {
+                _settings.PreferVerboseMolar = value;
+                OnPropertyChanged("PreferVerboseMolar");
+            }
+        }
+
         #endregion
 
         #region Constructors
diff --git a/zaaReloaded2/Views/SettingsView.xaml b/zaaReloaded2/Views/SettingsView.xaml
index 85c2369..ca77cc4 100755
--- a/zaaReloaded2/Views/SettingsView.xaml
+++ b/zaaReloaded2/Views/SettingsView.xaml
@@ -63,8 +63,8 @@
                       SelectedItem="{Binding ReferenceStyle.SelectedItem}"
                       x:Name="ReferenceStyleChooser" HorizontalAlignment="Stretch" />
         </DockPanel>
-        <DockPanel DockPanel.Dock="Top" Margin="0 10 0 0">
-            <Label DockPanel.Dock="Left" Content="Auszeichnung pathologischer Werte:" Margin="0 0 10 0"
+        <StackPanel DockPanel.Dock="Top" Margin="0 10 0 0" Orientation="Horizontal">
+            <Label Content="Auszeichnung pathologischer Werte:" Margin="0 0 10 0"
                    Target="{Binding ElementName=AbnormalStyleChooser}" />
             <StackPanel Orientation="Horizontal" VerticalAlignment="Center">
                 <ToggleButton IsChecked="{Binding AbnormalBold}" Height="25" Width="25">
@@ -77,7 +77,10 @@
                     <TextBlock TextDecorations="Underline">U</TextBlock>
                 </ToggleButton>
             </StackPanel>
-        </DockPanel>
+            <CheckBox IsChecked="{Binding PreferVerboseMolar}" Margin="20 5 10 0">
+                mmol/l statt mM
+            </CheckBox>
+        </StackPanel>
         <StackPanel DockPanel.Dock="Bottom" Orientation="Horizontal" HorizontalAlignment="Right">
             <Button Command="{Binding CloseViewCommand}" Content="Schließen" IsDefault="True" IsCancel="True"
                     Margin="0 10 0 0" />