Repeated USMLE Questions Step1 (70)

A 20-year old female student represents with a 1-week history of nausea, vomiting and anorexia. She returned 2-weeks ago from a trip to Guatemala. On physical examination, her temperature was 100.3 F, clear chest and she has mild jaundice and a palpable tender liver. Her CBC was normal and her liver function tests are as [...]

By | September 29th, 2016|USMLE Step 1|0 Comments

Repeated USMLE Questions Step 1 (69)

A 62-year-old man presents to the clinic with rashes all over his body and painful joints. Last month, he was diagnosed with arrhythmia. He is taking one medication for it. Laboratory tests reveal anti-histone antibodies. Which of the following drugs is most likely responsible for this condition? A-Hydralazine B-Metoprolol C-Propranolol D-Sotalol E-Verapamil Answer: This is [...]

By | September 25th, 2016|USMLE Step 1|0 Comments

Repeated USMLE Questions Step 1 (68)

A 12-year-old girl visits her physician for follow up after treatment with methotrexate for acute lymphoblastic leukemia. Stool analysis reveals blood in stool. Her platelet count is very low. Which of these substances should be administered immediately? A-Vitamin K B-Leucovorin C-Deferoxamine D-Triptyline E-Penicillamine Answer: This is a case of methotrexate toxicity. Leucovorin is the active [...]

By | September 24th, 2016|USMLE Step 1|0 Comments

Repeated USMLE Questions Step 1 (67)

A 76 year-old man with a history of inguinal hernia is brought to the emergency room with symptoms of acute intestinal obstruction. Imaging studies show strangulation of terminal ileum. Occlusion of branches of which of these arteries could result in infarction of terminal ileum? A-Celiac trunk B-Superior mesenteric artery C-Inferior mesenteric artery D-Middle colic artery [...]

By | September 20th, 2016|USMLE Step 1|0 Comments

Repeated USMLE Questions Step 1 (66)

A 32 year-old woman visits her physician because she has not been able to protrude and depress her tongue. Which of the following is the most likely affected muscle? A-Genioglossus muscle B-Hyoglossus muscle C-Styloglossus muscle D-Palatoglossus muscle Answer: Genioglossus muscle is the only muscle out of these muscles that is able to protrude and depress [...]

By | September 17th, 2016|USMLE Step 1|0 Comments

Repeated USMLE Questions Step 1 (65)

A 72-year-old man presents to the office for evaluation of new symptoms. He has a history of cancer and takes chemotherapeutic treatment. Now he complains of dyspnea and mild fatigue since last week. Examination reveals temperature of 98.3 F, pulse of 80/min, blood pressure of 140/86 and respiratory rate of 22/min. On chest auscultation, there [...]

By | September 16th, 2016|USMLE Step 1|0 Comments

Repeated USMLE Questions Step 1 (64)

A 19-year-old female athlete presents to the clinic for an injury to the back of her leg. On examination, there is a bruise on the calf and the patient fails to walk on her tiptoe. Which nerve is most likely injured? A-Common fibular nerve B-Superficial fibular nerve C-Deep fibular nerve D-Sural nerve E-Tibial nerve Answer: [...]

By | September 15th, 2016|USMLE Step 1|0 Comments

Repeated USMLE Questions Step 1 (63)

A 20-year-old exchange male student from Greece presents to the office for evaluation of glucose-6-phosphate dehydrogenase deficiency. 2 days ago, he noticed yellow discoloration of his conjunctiva. His family history is significant for hemolytic anemia due to glucose-6-phosphate dehydrogenase deficiency. Which of these conditions is most likely associated with hemolytic anemia? A-Increased plasma unconjugated bilirubin [...]

By | September 14th, 2016|USMLE Step 1|1 Comment

Repeated USMLE Questions Step 1 (62)

An 8- month-old girl is brought to the clinic by her mother who is concerned that her daughter is weak and get tired easily. On examination, the girl is pale with no jaundice or splenomegaly. Her CBC shows Hg of 6g/dL, MCV of 60 and reticulocyte count of 0.5%. Upon questioning her mother, she mentioned [...]

By | September 13th, 2016|USMLE Step 1|0 Comments

Repeated USMLE Questions Step 1 (61)

A 65-year-old man presents to the clinic complaining of weakness and recurrent infections for 6 months. He has no significant medical, surgical or family history. Physical examination reveals multiple enlarged lymph nodes. Histopathology reveals excessive mature B cells that mark strongly with CD5 and CD23 and weekly with CD22. They also have weak expression of [...]

By | September 11th, 2016|USMLE Step 1|0 Comments