Free Questions and Answers for All Medical Students all over the World
Dr Ray Makar A 45-year old man presents to the emergency room complaining of breathing difficulty, palpitations, dizziness and chest pain for 15 minutes. He is a new employee at the hospital. He was waiting for a meeting when he experienced these symptoms. He had 3 similar episodes during the past 3 months but they resolved spontaneously. His … Read more
A 2-year-old boy originally from Egypt is diagnosed with anemia after he took antibiotics for the treatment of otitis media. He has two brothers and one sister. One of his brothers was diagnosed with anemia when he was two years old. His parents were given a list of food and drugs that could be associated … Read more
A 27-year-old pregnant woman in her sixth week presents for her first prenatal visit. Ultrasound confirms fetal cardiac activity and length consistent with 6 weeks of pregnancy. It also shows a simple cyst measures 4-cm on the left ovary. What is the best next step of management? A-Assurance and follow up on next visits B-Hormonal … Read more
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