USMLE Step 1 - United States Medical Licensing Examination Practice Test
Gana confianza para USMLE Step 1 - United States Medical Licensing Examination. Practica los conceptos, comprende las respuestas y refuerza tus conocimientos pregunta a pregunta.
Probar una preguntaDescripción y detalles del examen
The USMLE Step 1 is a pivotal, high-stakes licensing examination administered by the Federation of State Medical Boards (FSMB) and the National Board of Medical Examiners (NBME). It serves as the foundational assessment for medical licensure in the United States, evaluating a candidate's understanding and application of essential concepts in the basic biomedical sciences to the practice of medicine. Success on Step 1 is a critical, non-negotiable milestone in the journey of every U.S. physician, as it is required for progression through medical training and for obtaining an unrestricted medical license. Beyond its gatekeeping function, Step 1 scores have historically been a primary metric used by residency program directors to evaluate and compare applicants across medical schools, making performance on this exam a significant determinant in securing a position in competitive specialties. The exam's comprehensive scope ensures that licensed physicians possess a robust scientific foundation necessary for safe and effective patient care, clinical reasoning, and lifelong learning.
Preguntas de Muestra
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A 46-year-old woman develops urticaria, wheezing, hypotension, and throat tightness minutes after a bee sting. Which mediator is responsible for the immediate increase in vascular permeability?
A 2-year-old boy has recurrent sinopulmonary infections. Flow cytometry shows absent mature B cells and normal T-cell numbers. Serum IgG, IgA, and IgM are markedly decreased. Which inheritance pattern is most likely?
A 37-year-old woman has tremor, anxiety, and weight loss. Radioiodine uptake is low, and thyroid is tender after a viral illness. Which diagnosis is most likely?
A 9-year-old boy has recurrent infections and absent thymic shadow. Calcium is low. Fluorescence in situ hybridization shows a 22q11.2 deletion. Which embryologic structure failed to develop normally?
A 25-year-old woman has recurrent pregnancy loss and a prolonged PTT that does not correct with mixing. She also had a deep venous thrombosis. Which antibody is likely present?
Qué temas cubre este examen
Usa las ponderaciones publicadas de los dominios para planificar tu estudio. Los resultados de práctica no predicen tu puntuación en el examen de certificación.