Repeated USMLE Questions Step 2 CK- 479



Q- A 61-year-old male represents to the ER with severe substernal chest pain. He’s given sublingual nitroglycerin and oxygen. His vital signs are within normal limits and ECG is normal. Which of the following is the best next step?

A- Aspirin

B- Coronary angiography

C- Echocardiography

D- Thallium stress test

A- Aspirin- It is life saving in cases of coronary disease. Other options may be needed later but not as urgent as aspirin. 



Q- Which of the following is the most common cause of congestive heart failure associated with systolic impairment in the United States?

A- Alcohol

B- Atherosclerosis

C- Diabetes

D- Rheumatic heart disease

B- Atherosclerosis- CHF with systolic impairment is mainly caused by ischemic cardiomyopathy due to coronary atherosclerosis. 



Q- A 15-year-old male is brought to the emergency department for ataxia, hyperactivity, hallucinations, abusive language and nystagmus. Which of the following is most likely responsible for his condition?

A- Amphetamines

B- Barbiturates

C- Cocaine

D- Phencyclidine (PCP)

D- Phencyclidine (PCP)- It is the only drug on the list that can use these clinical features. 



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