Free Questions and Answers for All Medical Students all over the World
A 26 year old woman is brought to the emergency room due to 2-hour history of hematemesis. She was invited to a banquet at her work and she vomited twice with a considerable amount of blood. Her medical, surgical and family histories are unremarkable. She visits her dentist regularly for recurrent dental caries. She doesn’t … Read more
Gluconeogenesis is a metabolic process in which glucose is generated from non-carbohydrate carbon substrates. Which one of the following substrates does NOT share its carbon in glucose skeleton but rather contributes as an energy source for gluconeogenesis? A- Acetyl CoA B- Alpha-ketoglutarate C- Fumarate D- Oxaloacetate E- Succinyl CoA Answer Acetyl CoA is an energy … Read more
A 22-year-old woman presents to the clinic for a recurrent urinary tract infection. She is prescribed trimethoprim/sulfamethoxazole. What is the mechanism of action of this antimicrobial drug? A- Inhibition of bacterial wall synthesis B- Inhibition of folic acid synthesis C- Inhibition of bacterial protein synthesis D- Inhibition of mycolic acid synthesis E- Inactivation of bacterial … Read more
An 82-year-old man is brought to the clinic by his son who is concerned about his father’s mental status. He told you that his father has recently become more forgetful and angry. He doesn’t remember recent events and he gets frustrated when he fails to complete simple tasks. On examination, the patient is unkempt. His … Read more
A 78-year-old woman presents to the office with her daughter. Last week, she fell twice while she was walking with her daughter. She was not shaking or lost her consciousness and she got up in a minute. Her medical history is significant for hypertension and osteoarthritis. She takes Lisinopril daily and ibuprofen as needed. She … Read more
A 5-year-old boy is brought to the ER by his mother. He has fever, cough, lethargy, headache and neck pain. On examination, his temperature is 103.2 F, his neck is rigid and tender and Kernig sign is positive. CSF is clear and significant for glucose 60 mg/dL, protein 80 mg/dL, no bacteria or pus cells … Read more