Index: firmware/App/Modes/ModePreTreat.c
===================================================================
diff -u -rcff19e1c44fd570e139a2a3f49b5a05f0193367d -r6295c0642a141af5843d060d09024db0e79d5769
--- firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision cff19e1c44fd570e139a2a3f49b5a05f0193367d)
+++ firmware/App/Modes/ModePreTreat.c	(.../ModePreTreat.c)	(revision 6295c0642a141af5843d060d09024db0e79d5769)
@@ -42,6 +42,8 @@
 static BOOL goToInstallStateRequested;                                      ///< Flag indicating a request to transition to Install state.
 static BOOL continueFromRecirculateRequested;                               ///< Flag indicating a request to transition to Patient Connection state.
 
+static BOOL resumePreTxAlarmResponseRequest;                                ///< Flag indicates user has requested PreTx resume.
+
 // ********** private function prototypes **********
 
 static void setPreTreatStateTransition( void );                                 ///< Configure actuators and variables for Pre-Treatment state transitions.
@@ -120,11 +122,11 @@
             break;
 
         case TD_PRE_TREATMENT_SELF_TEST_DRY_STATE:
-            // currentPreTreatmentState = handleSelfTestDryState();
+            currentPreTreatmentState = handleSelfTestDryState();
             break;
 
         case TD_PRE_TREATMENT_PRIME_STATE:
-            // currentPreTreatmentState = handlePrimeState();
+            currentPreTreatmentState = handlePrimeState();
             break;
 
         case TD_PRE_TREATMENT_CONFIRM_RX_STATE:
@@ -244,8 +246,7 @@
         state = TD_PRE_TREATMENT_TUBING_SET_INSTALL_STATE;
     }
 
-    // TODO: Transition to Prime state on completion when implemented
-    // state = TD_PRE_TREATMENT_PRIME_STATE;
+    state = TD_PRE_TREATMENT_PRIME_STATE;
 
     return state;
 }
@@ -254,17 +255,21 @@
  * @brief
  * The handlePrimeState function executes the Prime state of
  * pre-treatment mode.
- * @details \b Inputs: TODO fill up if any
- * @details \b Outputs: TODO fill up if any
+ * @details \b Inputs: none
+ * @details \b Outputs: none
  * @return next Pre-Treatment mode state.
  *************************************************************************/
 static TD_PRE_TREATMENT_MODE_STATE_T handlePrimeState( void )
 {
     TD_PRE_TREATMENT_MODE_STATE_T state = TD_PRE_TREATMENT_PRIME_STATE;
 
-    // TODO: Transition to Recirculate state on completion when implemented
-    // state = TD_PRE_TREATMENT_RECIRCULATE_STATE;
+    execPrime();
 
+    if ( PRIME_COMPLETE_STATE == getCurrentPrimeState() )
+    {
+        state = TD_PRE_TREATMENT_RECIRCULATE_STATE;
+    }
+
     return state;
 }
 
@@ -402,6 +407,7 @@
             break;
 
         case ALARM_ACTION_RESUME:
+            resumePreTxAlarmResponseRequest = TRUE;
              if ( TD_PRE_TREATMENT_RECIRCULATE_STATE == currentPreTreatmentState )
              {
                 signalResumePreTxRecirculate();
@@ -414,4 +420,16 @@
     }
 }
 
+/*********************************************************************//**
+ * @brief
+ * The signalPreTxResumeRequest function signals that user wants to resume.
+ * @details \b Inputs: resumePreTxAlarmResponseRequest
+ * @details \b Outputs: none
+ * @return TRUE if resume has been requested, FALSE if not
+ *************************************************************************/
+BOOL signalPreTxResumeRequest( void )
+{
+    return resumePreTxAlarmResponseRequest;
+}
+
 /**@}*/