A 55-year-old man presents with crushing chest pain radiating to the left arm. Which initial diagnostic test is most appropriate?

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Multiple Choice

A 55-year-old man presents with crushing chest pain radiating to the left arm. Which initial diagnostic test is most appropriate?

The main idea here is that in acute chest pain suggestive of a heart attack, the first test you do is an ECG. It provides immediate information about heart rhythm and signs of ischemia or infarction. If the ECG shows ST-segment elevation consistent with STEMI, you must activate the STEMI protocol right away so the patient can receive urgent reperfusion therapy (such as PCI). Serial troponin levels are important for confirming and staging injury, but they take time to rise and do not guide the initial, time-critical treatment. Chest X-ray can help rule out other problems but won’t confirm acute ischemia or infarction. Echocardiography can assess function and detect complications, but it isn’t the initial test to diagnose the acute event. CT angiography isn’t the first step in the emergency assessment of STEMI due to time and contrast considerations and is not used to trigger immediate reperfusion.

The main idea here is that in acute chest pain suggestive of a heart attack, the first test you do is an ECG. It provides immediate information about heart rhythm and signs of ischemia or infarction. If the ECG shows ST-segment elevation consistent with STEMI, you must activate the STEMI protocol right away so the patient can receive urgent reperfusion therapy (such as PCI). Serial troponin levels are important for confirming and staging injury, but they take time to rise and do not guide the initial, time-critical treatment.

Chest X-ray can help rule out other problems but won’t confirm acute ischemia or infarction. Echocardiography can assess function and detect complications, but it isn’t the initial test to diagnose the acute event. CT angiography isn’t the first step in the emergency assessment of STEMI due to time and contrast considerations and is not used to trigger immediate reperfusion.

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