John, a 55-year-old man, suddenly feels severe chest pain and is rushed to the hospital. The doctors diagnose him with a specific type of heart attack. Which of the following is true of John's condition if it is identified as STEMI?

Your patient appears pale, cool, and diaphoretic. You quickly check their vital signs: BP 96/58 mm Hg; pulse, 82 beats/min; respirations, 16 breaths/min; and SpO2, 96%. What is the next step in your assessment?

Dr. Smith reviews a 12-lead ECG from a patient complaining of chest pain and notices ST changes in leads II, III, and aVF. Based on these findings, which anatomic region of the heart is likely affected?

Your patient presents with crushing chest pain radiating to his back that started while he was gardening in high temperatures. He is sweating profusely and has a history of MI. He has administered one dose of nitroglycerin prior to EMS arrival and states his pain has improved. The 12-lead shows no measurable ST-elevation. What do you suspect based on the 12-lead findings and patient presentation?

During a routine check-up, a cardiologist observes ST changes in leads II, III, and aVF on a patient's ECG. The cardiologist then looks for reciprocal changes. In which of the following leads might these changes be observed?

During a routine health check-up at a community health fair, you are reviewing the ECG of a middle-aged person who reports no cardiac history. The ECG monitor displays a Normal Sinus Rhythm with a PR-Interval of 0.28 seconds. Based on this information, what rhythm do you suspect?

During a routine check-up, a patient's ECG shows signs of ischemia, injury, or infarction in leads II, III, and/or aVF. Which coronary artery is most likely affected?

Your 12-lead shows inverted T-waves in leads II, III, aVF. What do you suspect based on this finding?

During a routine check-up, a cardiologist explains that the intrinsic rate for the heart’s primary pacemaker, the SA node, is ...