High-Yield USMLE Topics

Themed reviews that tie a whole topic together — the framework, the key entities, and the cross-cutting facts and pitfalls the exam rewards.

• ABCD² Score for TIA Risk StratificationA high-yield USMLE review of the ABCD² score for stratifying stroke risk after a transient ischemic attack, covering Age, Blood pressure, Clinical features, Duration, and Diabetes and how each is scored.
• Acute Treatment Options for MigraineA high-yield USMLE review of acute migraine therapy covering simple analgesics, triptans, anti-emetics, gepants, and ditans — including first-line choices, key contraindications, and mechanisms.
• Age-Related Pharmacokinetic Changes in the ElderlyA high-yield USMLE review of age-related pharmacokinetic changes: how absorption, distribution, metabolism, and excretion shift with aging and the clinical consequences for prescribing.
• Arrhythmias and Conduction Disorders: A High-Yield USMLE ReviewComprehensive USMLE review of arrhythmias and conduction disorders covering cardiac electrophysiology, a systematic diagnostic framework, bradyarrhythmias, AV blocks, SVT, atrial fibrillation, ventricular arrhythmias, and inherited sudden death syndromes.
• Autophagy vs Apoptosis vs Necrosis: A High-Yield ComparisonA focused USMLE review comparing autophagy, apoptosis, and necrosis — purpose, triggers, key organelles, membrane changes, inflammation, ATP dependence, mechanisms, and clinical correlates.
• Autosomal Trisomies: Down, Edwards, and Patau SyndromesHigh-yield USMLE review of the autosomal trisomies (Down/21, Edwards/18, Patau/13): karyotypes, incidence, survival, cardiac defects, and distinguishing features compared side by side.
• Blood and Tissue Protozoa: Vectors and Key Features for the USMLEHigh-yield USMLE review of blood and tissue protozoa: Plasmodium, Trypanosoma brucei and cruzi, Leishmania, and Toxoplasma gondii — their vectors, diseases, and classic clinical features.
• CCS Angina Classification (Canadian Cardiovascular Society)A high-yield USMLE review of the Canadian Cardiovascular Society (CCS) angina classification, covering Classes I–IV by activity limitation, example activities, and clinical significance.
• Coagulation Tests and Their Clinical SignificanceA high-yield USMLE review of PT, PTT, thrombin time, and D-dimer — the pathways they test, the factors they assess, what prolongs them, and how to use them to diagnose bleeding and clotting disorders.
• Common Mononeuropathies: A High-Yield USMLE ReviewA focused USMLE review of the four classic compression mononeuropathies (median, ulnar, radial, common peroneal) covering compression sites, motor and sensory deficits, and classic exam histories.
• Crystal Identification Under Polarized Microscopy: MSU vs CPPDHigh-yield USMLE review of crystal identification under polarized light microscopy, comparing monosodium urate (gout) and calcium pyrophosphate (pseudogout) crystals: shape, birefringence, color, joints, and X-ray findings.
• Diagnostic Criteria for Diabetes and PrediabetesHigh-yield USMLE review of the diagnostic criteria for diabetes and prediabetes, covering FPG, 75g OGTT, HbA1c, and random glucose thresholds plus IFG and IGT ranges.
• Diagnostic Criteria for DKA by SeverityUSMLE review of diabetic ketoacidosis severity classification: glucose, arterial pH, serum bicarbonate, anion gap, ketones, and mental status thresholds for mild, moderate, and severe DKA, plus euglycemic DKA and management pearls.
• Effect of Prevalence on Predictive Values (95% Sens/95% Spec Test)A high-yield USMLE review of how disease prevalence drives PPV and NPV using a fixed 95% sensitivity/95% specificity test, with worked implications across 1%, 10%, 50%, and 90% prevalence.
• Fat-Soluble Vitamin Deficiencies (A, D, E, K)High-yield USMLE review of fat-soluble vitamin (A, D, E, K) deficiencies: functions, deficiency features, classic findings, at-risk populations, and toxicity risks.
• First Trimester Screening Patterns: Trisomy 21, 18, and 13High-yield USMLE review of first trimester screening (11-13 weeks): nuchal translucency, PAPP-A, and free beta-hCG patterns distinguishing Trisomy 21, 18, and 13.
• GERD Diagnostic ModalitiesA high-yield USMLE review of GERD diagnostic modalities: upper endoscopy, ambulatory pH monitoring, esophageal manometry, and barium swallow — what each shows and when to use it.
• Gleason Score and Grade Groups: Prostate Cancer Grading for the USMLEA high-yield USMLE review of the Gleason score and Grade Group system for prostate cancer, covering how the score is assigned, the five Grade Groups, and their corresponding risk categories.
• HBV Serology Interpretation for the USMLEA high-yield USMLE review of hepatitis B serology: how to read HBsAg, anti-HBs, anti-HBc (total and IgM), and HBeAg across acute, chronic, immune, and window-period patterns.
• Heart Murmurs: A High-Yield USMLE Topic ReviewA themed USMLE review of heart murmurs covering systematic murmur characterization, systolic and diastolic murmurs, congenital lesions, acute murmur emergencies, and associated heart sounds.
• Hepatitis Viruses: Genome, Transmission, and ChronicityHigh-yield USMLE review of hepatitis viruses A through E, covering genome type, route of transmission, potential for chronic infection, and vaccine availability.
• High-Yield Antiepileptic Drug ComparisonA USMLE-focused comparison of key antiepileptic drugs (levetiracetam, valproic acid, lamotrigine, carbamazepine, phenytoin, ethosuximide) covering mechanism, spectrum, side effects, interactions, and special populations.
• High-Yield Biostatistics Formulas for the USMLEA high-yield USMLE review of core biostatistics formulas: sensitivity, specificity, PPV, NPV, likelihood ratios, relative risk, odds ratio, ARR, RRR, NNT, prevalence, and incidence.
• High-Yield Neurologic Discriminators: Rapid Two-Condition ComparisonsA focused USMLE review of high-yield neurologic discriminators, comparing bacterial vs viral meningitis, ischemic vs hemorrhagic stroke, MS vs neuromyelitis optica, and Guillain-Barre vs myasthenia gravis.
• High-Yield Pharmacogenomic Associations for the USMLEA high-yield USMLE review of pharmacogenomic associations: abacavir/HLA-B*5701, carbamazepine/HLA-B*1502, TPMT and thiopurines, warfarin CYP2C9/VKORC1, clopidogrel CYP2C19, and codeine CYP2D6 — with clinical consequences and required actions.
• MS Oral Therapies: Fingolimod, Dimethyl Fumarate, TeriflunomideHigh-yield USMLE review of oral disease-modifying therapies for multiple sclerosis: fingolimod, dimethyl fumarate, and teriflunomide — their mechanisms, key adverse effects, and clinical context.
• Obstructive vs Restrictive Lung Disease — USMLE High-Yield ReviewA USMLE-focused review of obstructive versus restrictive lung disease, covering spirometry patterns, COPD, asthma, bronchiectasis, interstitial lung disease, DLCO, and management distinctions.
• SPIKES Protocol for Breaking Bad NewsA high-yield USMLE review of the SPIKES protocol for breaking bad news, covering Setting, Perception, Invitation, Knowledge, Empathy, and Summary with example phrases.
• Thyroid Disorders: High-Yield USMLE ReviewA focused USMLE review of thyroid disorders covering thyroid function testing, hyperthyroidism, thyroiditis, hypothyroidism, thyroid nodules and cancer, and pregnancy and emergency management.