P1 Acute Coronary Syndrome CH18

12-lead shows ST-elevation in leads I, aVL, V5. Where is the STEMI located?

• Anterior

• Inferior

• Septal

• Lateral

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?

• Blood flow through one or more coronary arteries is completely blocked, resulting in myocardial tissue death.

• Subsequent laboratory tests will reveal normal levels of cardiac biomarkers, indicating no myocardial damage.

• Most patients with STEMI do not experience chest pain or discomfort.

• Blood flow through one or more coronary arteries is intermittently blocked because of coronary vasospasm.

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?

• Confirm the list of their current medications.

• Obtain an ECG strip for lead aVL.

• Obtain a 12-lead ECG.

• Obtain a blood draw for blood chemistry.

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?

• Anterior

• Lateral

• Septal

• Inferior

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?

• Anxiety

• STEMI

• NSTEMI

• Pleurisy

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?

• V1 and V2

• I and aVL

• V3 and V4

• V5 and V6

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?

• Sinus dysrhythmia

• Sinus rhythm with premature atrial complexes

• Third-degree AV block

• First-degree heart block

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?

• Right coronary artery

• Left anterior descending artery

• Circumflex artery

• Left coronary artery

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

• Inferior MI

• Lateral ischemia

• Inferior ischemia

• Anterior MI

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

• 40 to 60 bpm

• 60 to 100 bpm

• 20 to 40 bpm

Tags

NGSS.HS-LS1-3