Free Questions and Answers for All Medical Students all over the World
Dr Ray Makar Q- Which one of the following regional anesthetics can cause methemoglobinemia if given in a large dose? A-Bupivacaine B-Cocaine C-Prilocaine D-Procaine Q- Which of the following is the mechanism of antimicrobial action of cephalosporins? A-Binding to the 30S Ribosomal Subunit B-Inhibition of beta-lactamase C-Inhibition of transpeptidation reactions D-Interference with the synthesis of ergosterol … Read more
Q- which of the following is the most common infectious cause of dilated cardiomyopathy in Central and South America? A- Coxsackievirus B B- Human immunodeficiency virus (HIV) C- Rickettsia D- Trypanosoma cruzi Q- Which of the following is the most sensitive test to order in a suspected case of myocardial sarcoidosis? A- Angiography B- … Read more
Q- A patient with a history of intravenous drug abuse presents with JVD and a holosystolic murmur at the left sternal border. Which of the following is the best treatment for this patient? A- Dopamine and observation B- Morphine and IV beta blockers C- Treat heart failure and replace the aortic valve D- Treat heart … Read more
Q- A 25-year-old woman comes to the office because of a 3-day history of fever, chills, severe headache, weakness, muscle pain, loss of appetite, vomiting, diarrhea, and moderate abdominal pain. She is in nursing school and returned from a medical mission’s trip in West Africa 10 days ago. Her symptoms began abruptly while she was … Read more
Q- A 5-year-old boy is brought to the emergency department by his mother because of an episode of bloody stool 3 hours ago. The mother says the stool was hard “like pebbles” and she noted bright red blood on the tissue when the patient cleaned himself. His previous bowel movement was 5 days … Read more
I am going to answer the sample USMLE Step 1 Questions with Explanation. These questions are available at USMLE.org Q- An 11-year-old girl is brought to the emergency department by her parents because of a 1-week history of breast enlargement. She has not had pain or nipple discharge. She has asthma treated with inhaled albuterol … Read more