USMLE Quizzes, Questions & Answers
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For those of you who love all things biology and living organisms especially anatomy and how stuff works in the human body then this is the quiz for you. If you are prepared to test your knowledge try it out.
Questions: 50 | Attempts: 919 | Last updated: Mar 21, 2023
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Sample QuestionA sample of human DNA is subjected to increasing temperature until the major fraction exhibits optical density changes due to disruption of its helix (melting or denaturation). A smaller fraction is atypical in that it requires a much higher temperature for melting. This smaller, atypical fraction of DNA must contain a higher content of
Questions: 25 | Attempts: 7377 | Last updated: Jul 16, 2024
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Sample QuestionOne of three blood culture bottles drawn from a patient with unexplained fevers reveals gram-positive cocci growing in clusters. Which of the following tests would be most useful in determining whether this organism is a part of the normal skin flora?
What we have here is the hardest trivia questions quiz on USMLE. Medical practitioners are selfless and do everything possible to save the life of their patients with their underlying oath being that they cannot harm. For you to...
Questions: 100 | Attempts: 861 | Last updated: Jul 28, 2024
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Sample QuestionA normal, healthy, 25-year-old man lives at the beach. His twin brother has been living in a mountain cabin for the past 2 years. Which of the following indices would be expected to be higher in the man living at sea level?
Pathology is the analysis of the causes and impacts of disease or injury. Pathology also describes the study of disease in general. When used in medical treatment, it means the incitation of processes and tests that fall under...
Questions: 20 | Attempts: 2872 | Last updated: Mar 22, 2023
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Sample QuestionA 57-y/o man is brought to the emergencydepartment because of blurry vision, difficulty standing, and mental confusion. On physical examination the patient appears malnourished, he had diffuse crackles bilaterally, and on standing his gait is wide-based and unsteady. The patient’s friend, who accompanies him, says the patient “hasn’t been himself lately,” and is having difficulty remembering to do everyday tasks. Which neuropathologic findings are most consistent with this patient’s symptoms?
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Questions: 20 | Attempts: 163 | Last updated: May 29, 2024
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Sample QuestionBenign prostatic hypertrophy results in obstruction of the urinary tract. This specific condition is associated with enlargement of which of the following?
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Questions: 48 | Attempts: 222 | Last updated: Mar 21, 2023
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Sample QuestionAn oncologist recently discovered that certain cancerous cells secrete a protein named ca- 1panc. Using this protein, he developed a new blood test to detect this type of cancer. He performed the blood test on 1,000 patients. One hundred of these patients had the cancer, and the test came back positive for 60 of them, while for the remaining 40 patients the test was negative. Nine hundred of the patients did not have the cancer; however, the test was positive for 100 of them. In the remaining 800, the test came back negative. Which of the following numbers represents how well the test identifi ed those who had the cancer?
Questions: 48 | Attempts: 253 | Last updated: Mar 20, 2023
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Sample QuestionA new patient presents to a clinic in Denver, Colorado with complaints of dyspnea and fatigue on exertion. On history, the patient informs the doctor that she just moved from the California coastline less than 1 week ago, and has been attempting to do her 3-mile run every morning. The patient is told to limit her running until her body adjusts to the new altitude. Which of the following will occur in this woman’sbody in response to the high altitude?
Questions: 23 | Attempts: 382 | Last updated: Mar 20, 2023
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Sample QuestionA 1-year-old child develops voluminous watery diarrhea and vomiting. She is brought to the pediatrician by her parents and evaluated, then sent home with instructions for the parents to give the child an electrolyte replacement solution. Which of the following viruses is the most likely cause of the child's diarrhea?
Questions: 25 | Attempts: 328 | Last updated: Mar 20, 2023
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Sample QuestionA 33-year-old man in Arkansas presents to the local clinic with fever, chills, headache, and generalized myalgias and arthralgias. On physical examination, an ulcer with a black base is apparent on his right hand, and epitrochlear lymphadenopathy is noted. A careful history reveals that the man is a hunter and trapper, recently trapping and skinning rabbits. Which of the following organisms is the most likely cause of this man's illness?
Questions: 25 | Attempts: 426 | Last updated: Mar 21, 2023
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Sample QuestionA 55-year-old man returns from a vacation to the beach. While on vacation, he and his family consumed several meals consisting primarily of seafood, including lobster and raw oysters. Although the other members of his family did not get sick, he developed a bullous rash over his lower extremities, hypotension, and confusion. His past medical history is significant for liver disease and alcoholism. The most likely cause of this man's signs and symptoms is
Are you familiar with ICM and pathology, and do you think you can pass this quiz? Pathology focuses on the relationship between the cause and effect of a disease or injury. It also refers to the study of diseases in general....
Questions: 25 | Attempts: 283 | Last updated: Mar 20, 2023
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Sample QuestionA 12-year-old male is investigated for severe headache and is found to have an intraventricular mass by CT scan. The mass is well demarcated with pushing borders. Microscopically, the excised mass shows cells with nuclei showing open chromatin with an inconspicuous nucleus and, well-defined cytoplasm with tapering processes. These cells are arranged in rosette like rests and around the vessels forming pseudorosettes. Also seen are epithelial lined tubules. The delicate processes are positive with PTAH staining and are positive for GFAP. What is the most likely diagnosis in this case?
Questions: 23 | Attempts: 215 | Last updated: Mar 22, 2023
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Sample QuestionA 20-year-old man arrives at the emergency room asking for a strong pair killer because he is in serious pain. The attending physician notices that he is very anxious and is sweating. The man states that he has no appetite and has a runny nose, nausea, stomach cramps, and diarrhea. He said that he took his temperature at home, which was 100°Fahrenheit. While he talks, he yawns and appears constantly restless. The attending physician recognizes that he is abusing a certain substance and is experiencing withdrawal. Which substance is it?
Questions: 25 | Attempts: 326 | Last updated: Mar 21, 2023
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Sample QuestionWhich of the following is a feature of gram-positive bacteria rather than gram-negative bacteria?
Questions: 25 | Attempts: 412 | Last updated: Mar 21, 2023
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Sample QuestionAn 8-year-old boy is taken to a pediatrician because of behavioral changes, mild intellectual deterioration, and "laziness." Over the next several months the boy develops increasing clumsiness and periodic, involuntary, jerky movements every 3 to 6 seconds. Visual deterioration is apparent upon visual field testing, and optic atrophy is evident on funduscopic examination. Cerebrospinal fluid studies do not show significant pleocytosis, but oligoclonal bands of IgG are present on CSF electrophoresis. The electroencephalogram shows periodic discharges that are synchronous with the periods of myoclonus. Computed tomography (CT) of the head shows low-density white matter lesions and cerebral atrophy. At the age of 10, the boy dies. Prior infection with which of the following agents was probably related to the patient's condition?
Questions: 25 | Attempts: 593 | Last updated: Mar 22, 2023
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Sample QuestionAn Hispanic male is referred to the dermatology clinic of a major medical center. On physical examination, the man has several disfiguring lesions on his face and there is loss of cutaneous sensation to fine touch, pain, and temperature. An acid-fast organism is observed in scrapings from a skin lesion. Which of the following organisms is the most likely cause of this patient's disease?
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Microbiology is the branch of biology that involves microscopic forms of life, such as bacteria and viruses. It is the study of the characteristics of tiny living organisms and the way they affect the world. It helps to track...
Questions: 25 | Attempts: 1350 | Last updated: Mar 22, 2023
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Sample QuestionA 28-year-old male intravenous drug user presents with a febrile illness that has lasted 2 weeks. He also complains of chills, weakness, dyspnea, cough, arthralgia, diarrhea, and abdominal pain. On examination, a heart murmur is present, and small, tender nodules are found on the finger and toe pads, along with small hemorrhages on the palms and soles. Three sets of blood cultures are obtained from different veins. While awaiting laboratory confirmation, an empiric antibiotic regimen should primarily be directed at which of the following organisms?
Microbiology is the study of organisms, those being unicellular or acellular. Microbiology involves numerous sub-disciplines, including bacteriology, virology, immunology, and physiology. It is the branch of biology that...
Questions: 25 | Attempts: 1193 | Last updated: Mar 21, 2023
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Sample QuestionA baby born at 32 weeks gestation with Apgar scores of 2 and 7 was placed in the neonatal intensive care unit. She developed a fever and leukocytosis; lumbar puncture revealed pleocytosis with increased protein, decreased glucose, and gram-positive rods. Which one of the following organisms was most likely isolated from the CSF?
This is a block of 46 questions of MCQ type with images in some questions. Choose the best answer for each question and get explanation at the end of exam when you submit. Time permitted is 1 hour.
Questions: 20 | Attempts: 890 | Last updated: Mar 21, 2023
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Sample QuestionA peripheral blood smear shows normocytic, normochromic red blood cells. The other cell types are morphologically normal but reduced in number as well. Bone marrow biopsy in this patient would most likely show which of the following patterns?