Questões de USMLE
3.602 questões com gabarito e explicação.
Fazer o diagnóstico grátisA 60-year-old man with a history of anterior myocardial infarction two years ago presents to his cardiologist reporting palpitations, mild dyspnea on exertion, and occasional light…
A 34-year-old woman presents with acute vision loss in her left eye and pain with eye movements. MRI shows inflammation of the optic nerve. She has no other neurologic symptoms cur…
A 31-year-old woman with multiple sclerosis on interferon-beta therapy presents with progressive confusion, cognitive decline, and behavioral changes over 4 weeks. Vital signs: BP …
A 37-year-old woman undergoes MRI for suspected MS and is found to have multiple brain T2 lesions, but only 1 lesion shows gadolinium enhancement. Spine MRI is normal. She reports …
A 31-year-old woman with multiple sclerosis on natalizumab for 18 months presents with progressive cognitive decline, right-sided weakness, and visual field defect. Vital signs: BP…
A 29-year-old woman with newly diagnosed multiple sclerosis is started on natalizumab. After 14 months of treatment, she develops progressive confusion, memory loss, and gait distu…
A 42-year-old woman presents with severe dysarthria, diplopia, and ataxia that worsened over 3 weeks. She reports heat sensitivity and fatigue. Brain MRI shows multiple T2/FLAIR hy…
A 19-year-old man with no prior neurological history experiences acute onset of paresthesias in both legs, progressive weakness, and urinary retention over 24 hours. MRI shows T2 h…
A 45-year-old man with a 15-year history of relapsing-remitting multiple sclerosis presents with progressive leg weakness and cognitive decline over the past 2 years without discre…
A 34-year-old woman presents with sudden vision loss in her right eye over 2 days. She describes pain with eye movement and a central scotoma on visual field testing. Ophthalmoscop…
A 28-year-old man develops acute paraplegia and urinary retention over 12 hours. He reports back pain and recent upper respiratory infection. Spinal MRI shows a T2 hyperintense les…
A 26-year-old woman presents with diplopia, dysarthria, and dysdiadochokinesia one week after a viral illness. Vital signs: BP 118/76, HR 88, RR 16, Temp 37.2°C, SpO2 98%. Brain MR…
A 67-year-old man with a history of poorly controlled type 2 diabetes and a recently replaced mitral valve presents to the emergency department with a 5-day history of fever, chill…
A 39-year-old woman with relapsing-remitting multiple sclerosis treated with natalizumab for 6 months presents with progressive left arm clumsiness, expressive aphasia, and cogniti…
A 44-year-old man with established MS presents with worsening spasticity, hyperreflexia, and a positive Babinski sign bilaterally. He reports progressive difficulty walking over th…
A 28-year-old woman has had three episodes over 2 years of neurologic dysfunction, including painful loss of vision in one eye, numbness of the right leg, and urinary urgency. Exam…
A 45-year-old woman with multiple sclerosis presents with acute severe vertigo, horizontal nystagmus, and intention tremor. Vital signs show BP 128/82, HR 88, RR 16, Temp 37.2°C, S…
A 34-year-old woman presents with acute monocular vision loss and pain with eye movements. Vital signs: BP 118/76, HR 88, RR 16, Temp 37.2°C, SpO2 98%. Examination reveals a relati…
A 23-year-old woman is brought to the emergency department after ingesting approximately 30 aspirin tablets two hours ago during an argument with her partner. She has tinnitus, tac…
An 8-year-old boy presents with declining school performance, progressive spasticity, and hyperpigmentation over 6 months. He experiences recurrent vomiting and exhibits adducted t…
A 26-year-old female with known multiple sclerosis on interferon-beta therapy presents with progressive cognitive decline, visual disturbances, and ataxia over 4 weeks. Vital signs…
A 72-year-old woman with a 6-month history of insomnia presents to her primary care physician complaining of a concerning episode the night after starting zolpidem 10 mg at bedtime…
A 12-year-old boy is brought to his pediatrician by his mother, who reports that he has experienced easy bruising and recurrent nosebleeds since early childhood. She notes that min…
A 28-year-old man presents with acute transverse myelitis causing total paraplegia and sensory level at T6. Vital signs show BP 128/82, HR 88, RR 16, temp 37.2°C, SpO2 98%. Days la…