Free Questions and Answers for All Medical Students all over the World
A daily contest for USMLE students and medical doctors. You post your answer in the comments box. The correct answer and explanation will be posted on the next day. A drawing on the correct answers will be made after 24 hours. The winner will earn a copy of the book “Repeated USMLE Questions for Step 1”. By Dr Ray Makar.
A 58-year-old woman is brought to the emergency room complaining of lightheadedness for 4 hours. She has diarrhea with loose stool for 2 days. She explains her symptoms as flu and she drinks lots of water as her neighbor advised her to avoid dehydration. Her physician told her that she should take combined solution of … Read more
An 8-month-old boy presents to the clinic with his mother. She tells you that her son had several bowel movements today and his stool was like red jelly. He vomited all food and water. He is also weak, fussy and holding his belly. He has no fever or signs of dehydration. On abdominal examination, there … Read more
A 47-year-old man with a history of chronic renal failure presents to the clinic for a follow up after a kidney transplant three weeks ago. His surgery was successful and his transplanted kidney started producing urine right after the operation. However, today his urine output drops and his serum creatinine begins to rise. There is … Read more
A 16-year-old high school student presents to the office with her mother for consultation. Her mother admits that her daughter is sad because she broke up with her friend recently. Yesterday, she tried to cut her wrist but her brother screamed and they stopped her. The girl does not make eye contact and her head … Read more
A 75-year-old man presents to his physician for a routine examination. He has a history of hypertension, hypercholesterolemia and osteoarthritis. He takes atenolol, simvastatin and ibuprofen as needed. His pulse is 76/min and irregular. Blood pressure is 130/74. Physical examination and imaging studies are normal except for asymptomatic atrial fibrillation. What is the most appropriate … Read more
A 1-day old full term baby of a 23-year old mother who was delivered yesterday by normal vaginal delivery is coughing, choking and ejecting the formula from his nose and mouth. He also turns blue during feeding. What is the primary diagnosis of this boy? A-Imperforate anus B-Pyloric stenosis C-Tetralogy of Fallot D-Tracheoesophageal fistula E-Tracheomalacia … Read more