Ten hours after successful thrombolysis for ST elevation myocardial infarction (STEMI), a client is receiving lidocaine and heparin infusions. Which assessment(s) should the nurse monitor regularly during the reperfusion period? Select all that apply.

Choice A reason: APTT is essential for monitoring the anticoagulant effect of heparin. Regular checks help ensure therapeutic levels are maintained while minimizing bleeding risk. Choice B reason: Electrocardiographic changes, particularly ST-segment resolution and T-wave inversion, are key indicators of successful reperfusion. Continuous ECG monitoring helps detect re-occlusion or arrhythmias. Choice C reason: Recurrence of chest pain may signal failed reperfusion or new ischemic events. It is a critical symptom that requires immediate evaluation. Choice D reason: PT is primarily used to monitor warfarin therapy, not heparin. It is less relevant in this context and does not provide actionable data for heparin adjustment. Choice E reason: The groin access site, typically used for catheter-based interventions, must be monitored for signs of bleeding, hematoma, or infection, especially post-thrombolysis.