1103 USMLE QUESTIONS BANK November 16, 2022 1 Min Read 1 USMLE QUESTION BANK USMLE quiz helps us to increase our knowledge Read moreScrape Multiple-Choice Questions from the Web1 / 20 1) A 30 year-old woman with a history of Grave’s disease presents to her physician for a routine evaluation. She was treated 2 years ago with radioactive iodine. Three months later, she was prescribed levothyroxine 0.125 mg. On her last evaluation, six months ago, her doctor lowered her dose to 0.088 mg due to decrease of TSH level. Today, her lab tests show increase in T4 and T3 and very low TSH and positive TSH receptor antibodies. A) at is the most likely diagnosis? B) Hashimoto’s disease C) Radioactive induced thyrotoxicosis D) Ectopic thyroid tissue E) Incomplete ablation of thyroid gland F) Cancer thyroid Read moreCookie Policy This is a typical presentation of incomplete ablation of thyroid gland. The patient went through radioactive ablation of his thyroid gland 2 years ago. In some cases, there is some thyroid tissue could be left after radiotherapy and starts to grow in size until becomes able to cause hyperthyroidism in addition to the use of levothyroxine treatment. 2 / 20 2) A 21 year-old college student complains of the appearance of yellowish coloration on her sclera. She mentions that she had been dizzy and weak for the last 3 days but did not feel any pain or fever and no change in stool color. Abdominal examination reveals normal bowel sounds and no tenderness or organomegaly. Laboratory tests show normal levels of liver enzymes and serum bilirubin. Which is the most likely initial diagnosis? A) Hepatocellular disease B) Hemolysis C) Gallstones D) Obstructive jaundice E) Pancreatic cancer This is a case of hemolysis which is characterized by jaundice without hepatic involvement or biliary obstruction. History, physical examination and laboratory tests confirm this etiology. 3 / 20 3) A 42-year-old man complains of rash and itching. He has no fever, headache or myalgia. On examination, there is maculopapular rash on the abdomen, palms of the hands and soles of the foot. There are also hypertrophic wart-like lesions around the anal area. Cervical, occipital and inguinal lymph nodes are enlarged. CBC shows marked increase in lymphocytes. What is the most appropriate laboratory test to confirm his diagnosis? A) Nucleic acid amplification test for chlamydia B) Serology for Human papilloma virus C) VDRL for syphilis D) Biopsy of the anal lesions E) Stool and urine analysis This patient most probably has secondary syphilis characterized by rash involving palms of the hands and soles of the feet. It is also characterized by condyloma lata, which are hypertrophic wart-like lesions and specific for syphilis. VDRL test is positive in all cases of secondary syphilis. 4 / 20 4) Which of the following virus infections mostly develops chronic hepatitis? A) Hepatitis A B) Hepatitis B C) Hepatitis C 5 / 20 5) Which one of the following drugs is the best treatment for seizures of eclampsia? A) Carbamazepine B) Haloperidol C) Magnesium sulfate D) Phenobarbital 6 / 20 6) Which one of the following parts of the cell is the site of steroid synthesis? A) Golgi apparatus B) Peroxisome C) Rough endoplasmic reticulum D) Smooth endoplasmic reticulum 7 / 20 7) Which one of the following medications inhibits protein synthesis by binding to 50S subunit and preventing the formation of the initiation complex? A) Azithromycin B) Clindamycin C) Linezolid D) Minocycline 8 / 20 8) Which one of these medication groups is contraindicated in a patient with narrow-angle glaucoma? A) Beta blockers B) Cholinomimetics C) Diuretics D) Muscarinic-receptor antagonists 9 / 20 9) Which of the following endocrine disorders is characterized by high blood pressure, sodium and water retention, low potassium level and decreased renin activity? A) Addison’s disease B) Pheochromocytoma C) Primary hyperaldosteronism D) Secondary hyperaldosteronism Secondary hyperaldosteronism is almost the same as primary but renin activity increases. 10 / 20 10) A 19-year-old man presents with syncope, dyspnea and chest pain with exercise. A crescendo-decrescendo murmur without carotid radiation is heard over the left sternal border. What is the most likely diagnosis? A) Aortic stenosis B) Hypertrophic cardiomyopathy C) Mitral stenosis D) Myocardial infarction An aortic systolic murmur without carotid radiation is diagnostic of left ventricular hypertrophy which is most likely caused by cardiomyopathy at this age. 11 / 20 11) Which of the following factors most likely affects the result of a study due to awareness of study subjects that they are being studied? A) Berkson’s bias B) Hawthorne effect C) Pygmalion effect D) Recall bias It is an error due to informing the study subjects about the it so, their personal preference will negatively affect the study results. 12 / 20 12) A 65-year-old man complains of lightheadedness when he gets off bed in the morning. He takes metoprolol and hydrochlorothiazide. Which of the following is the cause of his complaint? A) Antihypertensive therapy B) Aortic stenosis C) Hypertension D) Vasovagal reflex I know it is an easy question but this one teaches you to be aware not to choose any choice if it is not included in the scenario. This symptom can happen with any of the other three but nothing is mentioned in the case about them. 13 / 20 13) Which of the following locations is the most common site of mural thrombus following myocardial infarction? A) Aorta B) Left ventricle C) Right atrium D) Right ventricle It is the major user of oxygen which requires a good blood supply. Damage to left ventricle through ischemic heart disease causes mural thrombus. 14 / 20 14) Which of the following insects is the victor responsible for transmission of Rocky Mountain spotted fever? A) Flea B) Louse C) Mite D) Tick 15 / 20 15) Which of the following is the mechanism of action of ciprofloxacin? A) Inhibits bacterial protein synthesis through binding with 30 S B) Inhibits DNA gyrase and relaxation of DNA C) Interferes with bacterial cell wall synthesis D) Interferes with bacterial metabolic production 16 / 20 16) Administration of which one of the following medications can lead to the development of hemolytic anemia? A) Hydralazine B) Propranolol C) Quinidine D) Verapamil It is the only one on the list can cause hemolytic anemia through the formation of an immune complex and destruction of RBCs. Hydralazine may lead to lupus-like syndrome but not hemolytic anemia. 17 / 20 17) EXPLANATION: It is positive in this patient. Tinel sign is reproduction of pain by tapping or percussion on the medial nerve. A) Anti-cyclic citrullinated peptide B) Cervical spine x-ray C) Erythrocyte sedimentation rate (SER) D) Rheumatoid factor Prior to surgery and intubation, radiology is important to determine any fracture of cervical vertebra which is a complication of RA. 18 / 20 18) Which one of the following tests is performed to determine if a fetus develops hemolytic disease of the newborn? A) Direct Coombs test B) Hemoglobin electrophoresis C) Osmotic fragility test D) Radioimmunoassay Erythrocytes of the baby will be coated with maternal anti-Rh antibodies. Agglutination will result from adding Coombs serum to the blood of the fetus. 19 / 20 19) Which of the following is the most likely cause of sudden death in a case of portal hypertension? A) Congestive heart failure B) Rupture of esophageal varices C) Hepatic encephalopathy D) Ventricular fibrillation This is the most dreaded complication of portal hypertension. 20 / 20 20) A 73-year-old patient with multiple myeloma has been treated with high doses of doxorubicin. Which of the following may develop during this treatment? A) Bladder hemorrhage B) Cardiomyopathy C) Papilledema D) Hemolytic anemia Cardiomyopathy- High doses of doxorubicin in an old patient can lead to cardiomyopathy resulting in congestive heart failure and pulmonary edema. Your score is 0% Restart quiz Uncategorized Show Comments Leave a Reply Cancel reply Save my name, email, and website in this browser for the next time I comment. Hover or click the text box below Share Article:
