Index: sources/gui/qml/main.qml
===================================================================
diff -u -r0be698733fd4570240a91703978fee7d53a76121 -rb12853c86ef9e517667516dc3e47bca07349cedf
--- sources/gui/qml/main.qml	(.../main.qml)	(revision 0be698733fd4570240a91703978fee7d53a76121)
+++ sources/gui/qml/main.qml	(.../main.qml)	(revision b12853c86ef9e517667516dc3e47bca07349cedf)
@@ -194,7 +194,7 @@
     VTreatmentBloodFlow                                 { id: vTreatmentBloodFlow                                   }
     VTreatmentVitals                                    { id: vTreatmentVitals
         interval        : vTreatmentCreate.bloodPressureMeasureInterval
-        canStartInterval: vTreatmentCreate.parametersConfirmed
+        canStartInterval: vTDOpMode.inTreatment && vTDTreatmentStates.txTreatment
         enableBPCuff    : true  // TODO: PRS 343 update with enable/disable Integrated Blood Pressure Cuff
         onCanStartIntervalChanged : {
             if ( vTreatmentVitals.canStartInterval )    { vTreatmentVitals.doTimerStart()   }