Q- Anterior spinal artery arises from which of the following arteries? A- Basilar artery B- External carotid artery C- Internal carotid artery D- Vertebral artery Q- Sensations to the external auditory meatus is innervated by which of the following nerves? A- Auriculotemporal nerve B- Great auricular nerve C- Facial nerve D- Vagus nerve Q- Bicornuate […]
USMLE Step 1
Repeated USMLE Questions Step 1- 372
Q- A study found that incidence of lung cancer in smokers is 230/100,000 and in smokers is 71/100,000. What is the relative risk for smokers? A-2.3 B- 3.2 C- 71 D- 230 Q- A patient with cystic fibrosis is treated by gene therapy. Which of the following types of cells should be targeted as host […]
Repeated USMLE Questions Step 1- 371
Q- A newborn infant presents with cleft palate and hypocalcemia. Genetic testing of the blood shows 22q 11.2 deletion. Which of the following is the most likely diagnosis? A- DiGeorge Syndrome B- Down syndrome C- Stickler syndrome D- Turner’s syndrome Q- A college student is brought to the ER for fever and agitation. Examination reveals […]
Repeated USMLE Questions Step 1- 370
Q- A 12-year-old girl is brought to the emergency room with her parents. Consent form the parents is needed to proceed with the treatment. The parents speak Spanish and very little English. What is the best next step of action? A- Find any Spanish-speaking person in the clinic to interpret the instructions B- Speak to […]
Repeated USMLE Questions Step 1- 369
Q- A patient presents with painless scrotal mass and increased thyroid panel. Which of the following markers would be elevated in this patient? A- Alpha-fetoprotein B- Follicle stimulating hormone C- Human chorionic gonadotropin D- Lactate dehydrogenase Q- Niemann-Pick disease is characterized by deficiency of which one of the following enzymes? A- Alpha-glucosidase B- Arylsulfatase C- […]
Repeated USMLE Questions Step 1- 368
Q- Mitochondria are NOT found in which of the following organisms? A- Fungi B- Protozoa C- Viruses D- Yeasts Q- Measurement of the content of which one of the following could help to compare the collagen content of several tissues? A- Cysteine B- Glycine C- Hydroxyproline D- Proline Q- Which of the following explains the […]