[{"data":1,"prerenderedAt":539},["ShallowReactive",2],{"STORED_CATEGORIES":3,"content-/usmle-step-1-high-yield-topics":94,"related_posts__usmle-step-1-high-yield-topics":526},{"tips":4,"features":27,"updates":44,"resources":61,"tutorials":77},{"id":5,"title":6,"body":7,"description":14,"extension":15,"meta":16,"name":20,"navigation":21,"path":22,"seo":23,"slug":24,"stem":25,"__hash__":26},"categories/categories/astuces.md","Astuces",{"type":8,"value":9,"toc":10},"minimark",[],{"title":11,"searchDepth":12,"depth":12,"links":13},"",2,[],"Tips for medical students and IMGs preparing for medical licensing exams","md",{"uri":17,"categoryId":18,"parentId":19},"/allqbanks/blog/category/tips/","6","null","Tips",true,"/categories/astuces",{"description":14},"tips","categories/astuces","jnCzTibPg-D-sfxzDOWknpYMUD5a3NJF65BLYE6B1_Q",{"id":28,"title":29,"body":30,"description":34,"extension":15,"meta":35,"name":38,"navigation":21,"path":39,"seo":40,"slug":41,"stem":42,"__hash__":43},"categories/categories/fonctionnalites.md","Fonctionnalites",{"type":8,"value":31,"toc":32},[],{"title":11,"searchDepth":12,"depth":12,"links":33},[],"All features that AllQbanks offers to help you pass your medical licensing exams",{"uri":36,"categoryId":37,"parentId":19},"/allqbanks/blog/category/features/","1","Features","/categories/fonctionnalites",{"description":34},"features","categories/fonctionnalites","xSe7PR9s_GIjy5B_sAr1yNuHV5fvnXWRxQegNk9JjVI",{"id":45,"title":46,"body":47,"description":51,"extension":15,"meta":52,"name":55,"navigation":21,"path":56,"seo":57,"slug":58,"stem":59,"__hash__":60},"categories/categories/mises-a-jour.md","Mises A Jour",{"type":8,"value":48,"toc":49},[],{"title":11,"searchDepth":12,"depth":12,"links":50},[],"Stay informed with the latest feature releases, platform updates, and medical exam news from AllQbanks.",{"uri":53,"categoryId":54,"parentId":19},"/allqbanks/blog/category/updates/","3","Updates","/categories/mises-a-jour",{"description":51},"updates","categories/mises-a-jour","hG_sOU7ROAh3OB-gEtM6bnK_D6OxLXfWaiSFsrQ5j5U",{"id":62,"title":63,"body":64,"description":68,"extension":15,"meta":69,"name":63,"navigation":21,"path":72,"seo":73,"slug":74,"stem":75,"__hash__":76},"categories/categories/resources.md","Resources",{"type":8,"value":65,"toc":66},[],{"title":11,"searchDepth":12,"depth":12,"links":67},[],"Free and paid resources for medical students and IMGs preparing for medical licensing exams",{"uri":70,"categoryId":71,"parentId":19},"/allqbanks/blog/category/resources/","8","/categories/resources",{"description":68},"resources","categories/resources","dE_XE6ncvI16FXzsWIGKrZOhFrPkmfDRywoQqhHX968",{"id":78,"title":79,"body":80,"description":84,"extension":15,"meta":85,"name":88,"navigation":21,"path":89,"seo":90,"slug":91,"stem":92,"__hash__":93},"categories/categories/tutoriels.md","Tutoriels",{"type":8,"value":81,"toc":82},[],{"title":11,"searchDepth":12,"depth":12,"links":83},[],"Step-by-step tutorials and guides to help you prepare for your medical licensing exams",{"uri":86,"categoryId":87,"parentId":19},"/allqbanks/blog/category/tutorials/","4","Tutorials","/categories/tutoriels",{"description":84},"tutorials","categories/tutoriels","hRZ1xzXve8-MhCWXxP9CtriTTB0XCxWRxVHtnPUdOsc",{"id":95,"title":96,"author":97,"author_slug":98,"body":99,"categories":512,"date":514,"date_mod":514,"description":515,"extension":15,"featured":516,"featured_image":517,"featured_image_alt_text":518,"meta":519,"navigation":21,"path":520,"seo":521,"sitemap":522,"stem":523,"tags":524,"updatedAt":524,"__hash__":525},"content/content/usmle-step-1-high-yield-topics.md","USMLE Step 1 High Yield Topics & Systems Guide [2026]","Dr. Leila Haddad","leila-haddad",{"type":8,"value":100,"toc":501},[101,113,116,165,170,173,355,363,367,370,397,401,406,420,424,438,442,456,463,467,474,486,489],[102,103,104,105,112],"p",{},"Preparing efficiently for USMLE Step 1 requires focusing your study time on official organ system weightings and physician task specifications. Based on official ",[106,107,111],"a",{"href":108,"rel":109},"https://www.usmle.org/exam-resources/step-1-materials/step-1-content-outline-and-specifications",[110],"nofollow","NBME Step 1 Content Specifications",", exam questions are engineered to evaluate the application of foundational basic science principles to clinical problem-solving.",[102,114,115],{},"This guide provides the official 2026 USMLE Step 1 Content Outline breakdowns, system percentage specifications (Table 1), physician competency weightings (Table 2), and high-yield disease concepts.",[117,118,119,125],"blockquote",{},[102,120,121],{},[122,123,124],"strong",{},"Key Takeaways",[126,127,128,145,151],"ul",{},[129,130,131,134,135,138,139,144],"li",{},[122,132,133],{},"General Principles of Foundational Science"," accounts for 15–20% of total exam items, while ",[122,136,137],{},"Behavioral Health & Nervous Systems/Special Senses"," generates 10–14% (",[106,140,143],{"href":141,"rel":142},"https://www.usmle.org/",[110],"USMLE Content Specifications",", 2026).",[129,146,147,150],{},[122,148,149],{},"Physician Tasks",": Medical Knowledge & Basic Science Application forms 60–70% of exam items, Patient Care (Diagnosis) forms 20–25%, and Pharmacotherapy forms 5–10%.",[129,152,153,156,157,160,161,164],{},[122,154,155],{},"Pathology"," remains the single highest-weighted basic science discipline (45–52% of total exam items), followed by ",[122,158,159],{},"Physiology"," (25–35%) and ",[122,162,163],{},"Pharmacology"," (15–22%).",[166,167,169],"h2",{"id":168},"what-are-the-official-usmle-step-1-system-weightings-table-1","What Are the Official USMLE Step 1 System Weightings (Table 1)?",[102,171,172],{},"According to the official USMLE Step 1 Content Specifications, questions are constructed across organ systems and process categories according to these exact percentage targets:",[174,175,176,192],"table",{},[177,178,179],"thead",{},[180,181,182,186,189],"tr",{},[183,184,185],"th",{},"Content Area / Organ System",[183,187,188],{},"Official Content Weighting (%)",[183,190,191],{},"High-Yield Sub-topics & Core Concepts",[193,194,195,210,225,240,255,270,284,298,312,326,341],"tbody",{},[180,196,197,202,207],{},[198,199,200],"td",{},[122,201,133],{},[198,203,204],{},[122,205,206],{},"15% – 20%",[198,208,209],{},"Cell biology, tissue response to injury (apoptosis/necrosis), general pharmacokinetics, neoplasia mechanisms",[180,211,212,217,222],{},[198,213,214],{},[122,215,216],{},"Behavioral Health & Nervous Systems / Special Senses",[198,218,219],{},[122,220,221],{},"10% – 14%",[198,223,224],{},"Stroke syndromes, neurodegenerative pathology, cranial nerve lesions, psychopharmacology, sleep physiology",[180,226,227,232,237],{},[198,228,229],{},[122,230,231],{},"Blood & Lymphoreticular System / Immune System",[198,233,234],{},[122,235,236],{},"9% – 13%",[198,238,239],{},"Anemias, leukemias, lymphomas, primary immunodeficiencies, hypersensitivity reactions (Types I–IV)",[180,241,242,247,252],{},[198,243,244],{},[122,245,246],{},"Multisystem Processes & Disorders",[198,248,249],{},[122,250,251],{},"8% – 12%",[198,253,254],{},"Nutrition, temperature regulation, acid-base/fluid balance, systemic vasculitis, septic shock mechanisms",[180,256,257,262,267],{},[198,258,259],{},[122,260,261],{},"Cardiovascular System",[198,263,264],{},[122,265,266],{},"7% – 11%",[198,268,269],{},"Ischemic heart disease, valvular heart disease, congenital defects, heart failure, antihypertensive drugs",[180,271,272,277,281],{},[198,273,274],{},[122,275,276],{},"Endocrine System",[198,278,279],{},[122,280,266],{},[198,282,283],{},"Thyroid disorders, diabetes mellitus, adrenal pathology (Cushing/Addison), MEN syndromes",[180,285,286,291,295],{},[198,287,288],{},[122,289,290],{},"Gastrointestinal System",[198,292,293],{},[122,294,266],{},[198,296,297],{},"Hepatitis, liver cirrhosis, inflammatory bowel disease, peptic ulcer disease, GI hormones",[180,299,300,305,309],{},[198,301,302],{},[122,303,304],{},"Renal & Urinary System",[198,306,307],{},[122,308,266],{},[198,310,311],{},"Glomerulonephropathies, tubular transport defects, acute/chronic renal failure, acid-base compensation",[180,313,314,319,323],{},[198,315,316],{},[122,317,318],{},"Respiratory System",[198,320,321],{},[122,322,266],{},[198,324,325],{},"Obstructive vs restrictive lung disease, pulmonary embolism, ARDS, arterial blood gas interpretation",[180,327,328,333,338],{},[198,329,330],{},[122,331,332],{},"Musculoskeletal System, Skin & Subcutaneous Tissue",[198,334,335],{},[122,336,337],{},"6% – 10%",[198,339,340],{},"Autoimmune connective tissue disease (SLE, RA), bone pathology, dermatological lesions",[180,342,343,348,352],{},[198,344,345],{},[122,346,347],{},"Reproductive System (Female & Male)",[198,349,350],{},[122,351,337],{},[198,353,354],{},"Ovarian/testicular pathology, cervical neoplasia, pregnancy disorders (preeclampsia), STIs",[102,356,357,358,362],{},"For a complete breakdown of exam duration and block formats, read our master ",[106,359,361],{"href":360},"/usmle-step-1-guide","USMLE Step 1 Guide",".",[166,364,366],{"id":365},"what-are-the-official-physician-tasks-competencies-table-2","What Are the Official Physician Tasks & Competencies (Table 2)?",[102,368,369],{},"Every question on Step 1 is categorized by physician tasks and clinical competencies:",[371,372,373,379,385,391],"ol",{},[129,374,375,378],{},[122,376,377],{},"Medical Knowledge: Applying Foundational Science Concepts (60% – 70%)",": Assessing understanding of basic scientific principles, pathophysiological mechanisms, and normal physiological processes.",[129,380,381,384],{},[122,382,383],{},"Patient Care: Diagnosis (20% – 25%)",": Formulating differential diagnoses, interpreting laboratory values, evaluating diagnostic imaging, and recognizing clinical vignettes.",[129,386,387,390],{},[122,388,389],{},"Patient Care: Pharmacotherapy & Interventions (5% – 10%)",": Selecting appropriate pharmacological agents, identifying drug mechanisms of action, and managing adverse drug reactions.",[129,392,393,396],{},[122,394,395],{},"Communication, Interpersonal Skills & Medical Ethics (3% – 6%)",": Evaluating medical ethics principles (autonomy, non-maleficence, beneficence, justice), doctor-patient communication, and informed consent.",[166,398,400],{"id":399},"what-are-must-know-high-yield-concepts-by-system","What Are Must-Know High Yield Concepts by System?",[402,403,405],"h3",{"id":404},"_1-general-principles-cell-pathology","1. General Principles & Cell Pathology",[126,407,408,414],{},[129,409,410,413],{},[122,411,412],{},"Necrosis vs Apoptosis",": Coagulative, liquefactive, caseous, fat, and fibrinoid necrosis histological features.",[129,415,416,419],{},[122,417,418],{},"Inflammation & Repair",": Neutrophil chemotaxis factors (C5a, LTB_4, IL-8), granulomatous inflammation (epithelioid macrophages and Langerhans giant cells).",[402,421,423],{"id":422},"_2-nervous-system-behavioral-health","2. Nervous System & Behavioral Health",[126,425,426,432],{},[129,427,428,431],{},[122,429,430],{},"Stroke Syndromes",": Contralateral lower extremity deficits in ACA stroke vs upper extremity/face deficits in MCA stroke; PCA stroke visual field defects.",[129,433,434,437],{},[122,435,436],{},"Neurodegenerative Disorders",": Alzheimer disease (neurofibrillary tangles, beta-amyloid plaques), Parkinson disease (Lewy bodies composed of alpha-synuclein).",[402,439,441],{"id":440},"_3-cardiovascular-renal-systems","3. Cardiovascular & Renal Systems",[126,443,444,450],{},[129,445,446,449],{},[122,447,448],{},"Myocardial Infarction Timeline",": 0–24 hrs (wavy fibers, coagulative necrosis), 1–3 days (neutrophils), 3–14 days (macrophages, granulation tissue), >2 weeks (scar tissue).",[129,451,452,455],{},[122,453,454],{},"Glomerulonephropathies",": Nephritic (PSGN, IgA nephropathy) vs Nephrotic (Minimal change disease, Membranous nephropathy, FSGS).",[102,457,458,459,362],{},"To explore specific pharmacology and biochemistry high-yield notes, visit our guide on ",[106,460,462],{"href":461},"/usmle-step-1-pharmacology-biochemistry","USMLE Step 1 Pharmacology & Biochemistry",[166,464,466],{"id":465},"how-to-apply-official-specs-to-practice-questions","How to Apply Official Specs to Practice Questions?",[102,468,469,470,362],{},"To practice with high-yield clinical vignettes constructed around these official specifications, visit our ",[106,471,473],{"href":472},"/usmle-step-1-practice-questions","USMLE Step 1 Practice Questions Guide",[102,475,476,477,481,482,362],{},"To evaluate how official content specs translate into pass rates, see our report on ",[106,478,480],{"href":479},"/usmle-step-1-pass-rate","USMLE Step 1 Pass Rates"," and track progress using our ",[106,483,485],{"href":484},"/nbme-step-1-free-120-guide","NBME Self-Assessments & Free 120 Guide",[102,487,488],{},"Because the NBME constructs Step 1 questions across integrative organ systems, 15–20% of your exam will test General Principles that span multiple disciplines. Mastering cell pathology, general pharmacology principles, and basic immunology provides the highest leverage across all organ systems.",[102,490,491,492,496,497,362],{},"To structure your study schedule around these official content specifications, follow our ",[106,493,495],{"href":494},"/usmle-step-1-study-plan","USMLE Step 1 Dedicated Study Plan"," and evaluate prep platforms in our ",[106,498,500],{"href":499},"/best-usmle-step-1-qbanks","Best USMLE Step 1 Qbanks Comparison",{"title":11,"searchDepth":12,"depth":12,"links":502},[503,504,505,511],{"id":168,"depth":12,"text":169},{"id":365,"depth":12,"text":366},{"id":399,"depth":12,"text":400,"children":506},[507,509,510],{"id":404,"depth":508,"text":405},3,{"id":422,"depth":508,"text":423},{"id":440,"depth":508,"text":441},{"id":465,"depth":12,"text":466},[513],"usmle","2026-07-28T19:30:00Z","Master 2026 USMLE Step 1 high yield topics with official NBME system weightings, Table 1 organ system specs, Table 2 physician tasks, and core disease concepts.",false,"/img/usmle-step-1-high-yield-topics.png","Visual breakdown of high-yield USMLE Step 1 organ systems and subjects",{},"/usmle-step-1-high-yield-topics",{"title":96,"description":515},{"loc":520,"lastmod":514},"content/usmle-step-1-high-yield-topics",null,"n2LfkHTU_VUdsfRemtmoNBpZ_cEcsu-pHex4hXYrP_g",[527,533],{"title":528,"path":360,"stem":529,"date":514,"date_mod":514,"description":530,"author":97,"featured_image":531,"categories":532,"children":-1},"USMLE Step 1 Guide: Exam Format & Pass Strategy [2026]","content/usmle-step-1-guide","Master the USMLE Step 1 exam in 2026 with 95% pass rate strategies, official NBME content specifications, and proven study schedules.","/img/usmle-step-1-guide.jpg",[513],{"title":534,"path":479,"stem":535,"date":514,"date_mod":514,"description":536,"author":97,"featured_image":537,"categories":538,"children":-1},"USMLE Step 1 Pass Rate & Passing Score Breakdown [2026]","content/usmle-step-1-pass-rate","Discover the 2026 USMLE Step 1 pass rate data, 196 passing score threshold, official NBME performance reports, and US MD vs IMG stats.","/img/usmle-step-1-pass-rate.png",[513],1785275490116]