usmle step 1

Q- Which of the following statements correctly describes the volume of distribution of a drug? A- It is a kinetic parameter that correlates dose with plasma level of a drug at zero time B- It is the capacity of a drug to attach to plasma protein C- It is the concentration of the drug in […]

Q- Which of the following anticoagulant medications works by binding to thrombin and inhibiting it? A- Heparin B- Hirudin C- Ticlopidine D- Warfarin Q- In cases of atrial septal defect (ASD), foramen ovale is formed by incomplete development of which one of the following structures? A- Ostium primum B- Ostium secundum C- Septum primum D- […]

Q- Which of the following types of receptors are associated with the slowest response time? A- G-protein coupled receptors B- Ion channel receptors C- Steroid receptors D- Transmembrane enzyme receptors Q- Which of the following tests would most likely indicates the etiology of vitamin B12 deficiency anemia? A- Complete blood count (CBC) B- Coomb’s test […]

Q- Which of the following organisms is responsible for the development of oral hairy leukoplakia in HIV patients? A- Bartonella henselae B- Candida albicans C- Epstein-Barr virus D- Human papilloma virus Q- Which of the following pathological terms describes the disordered, non-neoplastic cell growth? A- Anaplasia B- Dysplasia C- Metaplasia D- Neoplasia Q- Which of […]

Q- Which of the following laboratory tests could be slightly increased in Gilbert’s syndrome? A- Bilirubin, direct B- Bilirubin, indirect C- Haptoglobin D- Triglyceride Q- A neonate presents by renal failure and pulmonary hypoplasia. What is your diagnosis? A- Niemann-Pick disease B- Phenylketonuria C- Pompe disease D- Recessive polycystic kidney disease Q- Which of the […]