3 Hours Of Severe in Patient Safety, Preventive & Ethics — 59yo Man | Ethics | SMLE Q#1419

A 59-year-old man presents with 3 hours of severe central chest pain radiating to the left arm with diaphoresis and nausea. ECG shows ST-segment elevation in anterior leads, and urgent percutaneous coronary intervention (PCI) is planned. While awaiting the procedure, he repeatedly states that life is not worth living and reports several weeks of persistently low mood. After the procedure is explained, he can accurately restate the indication, major risks, benefits, and consequences of refusal but refuses to sign consent. PCI can be delayed for several hours and still be performed within 12 hours of symptom onset. What is the most appropriate next step in management?