Index: shared/scripts/configuration/strings.py
===================================================================
diff -u -rd86a21f914c0ca1035e170f0c2abf2520caa0748 -r4d91c57323a2135635398ce6553e2ae876e2c581
--- shared/scripts/configuration/strings.py	(.../strings.py)	(revision d86a21f914c0ca1035e170f0c2abf2520caa0748)
+++ shared/scripts/configuration/strings.py	(.../strings.py)	(revision 4d91c57323a2135635398ce6553e2ae876e2c581)
@@ -31,6 +31,8 @@
 #Blood Priming
 BLOOD_PRIMING_TEXT = "Blood Priming"
 SALINE_UNIT = "mL"
+ACK_REQ_STATUS = 'Ack Req'
+ACK_BAK_STATUS = 'Ack Bak'
 
 #main treatment pressure
 PRESSURE_TITLE = "PRESSURES"