A 72-year-old man comes to the emergency room with chest pain. ECG demonstrates ST-segment elevation in leads II,III, and aVF on an electrocardiogram. Suspecting a myocardial infarction, you admit him in the hospital. After a few minutes, the patient reports worsening chest pain, shortness of breath and lightheadedness. On electrocardiogram, you notice independent atrial and ventricular activity with no relation between the P waves and the QRS complexes. Which of the following is the most likely location of the patient’s infarct?

A 60-year-old woman reported chest pain for the last three hours which has been worsening progressively. She has a history of angina. However, this pain is longer and more intense than her usual angina and it is not responding to nitroglycerin. Her husband called 911 and the patient was transported to the local hospital. As she arrived in the hospital, her breathing became very rapid, heart rate rose to 135 beats/minute, blood pressure dropped to 75/55 mm Hg and oxygen saturation dropped to 92%. An ECG demonstrates regular rhythm, tachycardia and ST segment elevation in precordial leads. Laboratory tests reveal elevated troponin. Which of the following is the definitive treatment for this patient?

A 54 year-old male is admitted to the hospital for an abdominal surgery. His current medications include digoxin, enalapril, ibuprofen and ketoconazole. He is on heparin for DVT prophylaxis. His laboratory tests reveal the following: random, non-fasting, serum glucose: 357 mg/dl (normal fasting glucose: 70 – 100 mg/dL; Random, non-fasting: <140 mg/dL) serum potassium 6.2 mEq/L (normal serum potassium: 3.5 - 5.0 mEq/L) You reviewed his medical records as you investigated the etiology of his hyperkalemia. Which of the following is a cause of hyperkalemia, because it inhibits potassium excretion from the body?

A 58-year-old male has come to your primary care center for establishment of care. His medical problems include  heart failure with preserved ejection fraction and hypertension. As you review his medications, you want to make sure he is on the right medications which would be beneficial in the long run. You initiated this patient on lisinopril. As part of patient education, you should inform this patient about which of the following adverse effects of angiotensin-converting enzyme inhibitor?