Index: firmware/App/Modes/Dialysis.h
===================================================================
diff -u -rf4199248340b66e66abbe99599d5d30ce980ea5f -r9df8ab7b66946cb653f804c8191613cefafc4d57
--- firmware/App/Modes/Dialysis.h	(.../Dialysis.h)	(revision f4199248340b66e66abbe99599d5d30ce980ea5f)
+++ firmware/App/Modes/Dialysis.h	(.../Dialysis.h)	(revision 9df8ab7b66946cb653f804c8191613cefafc4d57)
@@ -23,7 +23,11 @@
 
 /**
  *  @defgroup Dialysis Dialysis
- *  @brief Dialysis sub-mode of treatment mode.
+ *  @brief Dialysis sub-mode of treatment mode.  The dialysis sub-mode is where
+ *  dialysis and (optionally) ultrafiltration are being provided by the system.
+ *  Heparin is added to the blood when appropriate.  A saline bolus may be requested
+ *  by the user; however, dialysis and ultrafiltration would not be provided during
+ *  a saline bolus.
  *
  *  @addtogroup Dialysis
  *  @{