diff --git a/addons/medical_treatment/ACE_Medical_Treatment_Actions.hpp b/addons/medical_treatment/ACE_Medical_Treatment_Actions.hpp
index a092a9fff7..9435283c4d 100644
--- a/addons/medical_treatment/ACE_Medical_Treatment_Actions.hpp
+++ b/addons/medical_treatment/ACE_Medical_Treatment_Actions.hpp
@@ -252,7 +252,7 @@ class GVAR(Actions) {
         callbackSuccess = QFUNC(treatmentCPR);
         callbackFailure = "";
         callbackProgress = QUOTE(!([(_this select 0) select 1] call EFUNC(common,isAwake)));
-        callbackStart = "";
+        callbackStart = QFUNC(treatmentCPR_start);
         animationPatient = "";
         animationPatientUnconscious = "AinjPpneMstpSnonWrflDnon_rolltoback";
         animationCaller = "AinvPknlMstpSlayW[wpn]Dnon_medic";
diff --git a/addons/medical_treatment/functions/fnc_treatmentCPR_start.sqf b/addons/medical_treatment/functions/fnc_treatmentCPR_start.sqf
new file mode 100644
index 0000000000..3ea1966dae
--- /dev/null
+++ b/addons/medical_treatment/functions/fnc_treatmentCPR_start.sqf
@@ -0,0 +1,18 @@
+/*
+ * Author: Zakant
+ * Handels the start of the CPR treatment.
+ *
+ * Return Value:
+ * NONE
+ *
+ * Public: No
+ */
+#include "script_component.hpp"
+params ["_caller", "_target", "_selectionName", "_className", "_items"];
+
+_target setVariable [QGVAR(receiveCPR), true, true]; // Target receives CPR
+if(EGVAR(medical,CPRcreatesPulse)) then {
+    _target setVariable [QEGVAR(medical,heartRate), round (30 + random [-5, 0, 5])  , true]; // And we have a (random) pulse
+};
+
+_target setVariable [QEGVAR(medical,lastTimeUpdated), CBA_missionTime, true];