COMLEX Level 2 (COMLEX-USA Level 2-CE) – 120 Questions – Internal Medicine, Infectious Disease, OMM, Neurology Q&A 2026

This document contains a comprehensive set of approximately 120 high-yield COMLEX Level 2-style clinical questions with verified answers, designed to strengthen rapid recall, diagnostic reasoning, and board exam performance. It spans a wide range of core medical disciplines including internal medicine, infectious diseases, neurology, cardiology, endocrinology, hematology, pharmacology, pediatrics, obstetrics, ethics, and osteopathic manipulative medicine (OMM). Early sections (pages 1–10) emphasize foundational clinical associations such as thyroid autoantibodies (Graves and Hashimoto), electrolyte disturbances (e.g., SSRI-induced hyponatremia), and gastrointestinal pathology (e.g., bowel obstructions), while later sections expand into complex multisystem topics including infectious disease classifications (Category A/B/C agents), rheumatologic syndromes, oncologic staging systems, neurologic stroke patterns, and endocrine disorders such as congenital adrenal hyperplasia and primary hyperaldosteronism. The document integrates high-yield clinical pearls, diagnostic algorithms, and treatment protocols essential for COMLEX-USA Level 2-CE success. It includes detailed coverage of emergency medicine (e.g., ARDS ventilation strategies, cardiogenic shock management), infectious diseases (e.g., Nipah virus, MAC in HIV), hematologic conditions (e.g., TTP, sickle cell complications), and OMM concepts such as sacral dysfunctions, Chapman points, and muscle energy techniques. Additionally, it highlights important exam-tested associations such as stroke localization (MCA, ACA syndromes), autoimmune markers, pharmacologic adverse effects, and clinical decision-making tools like Wells criteria and biostatistical measures (e.g., specificity, relative risk). The structured Q&A format supports efficient active recall, spaced repetition, and final-stage board review. This resource is highly relevant for courses such as Clinical Medicine II, Internal Medicine Clerkship, Neurology, Infectious Disease Modules, Emergency Medicine, Endocrinology, Hematology/Oncology, and Osteopathic Principles and Practice (OMM/OPP). It is best suited for osteopathic medical students (DO programs), particularly second- and third-year students preparing for COMLEX Level 2-CE, as well as international medical graduates preparing for USMLE Step 2 CK or equivalent licensing exams. It is also valuable for students enrolled in integrated systems-based curricula or intensive board-review programs. The content closely aligns with widely used board preparation textbooks such as First Aid for the USMLE Step 2 CK and COMLEX Level 2-CE review guides, making it a strong supplementary resource for consolidating high-yield clinical knowledge, improving diagnostic accuracy, and enhancing exam performance. Keywords: COMLEX Level 2, COMLEX USA Level 2 CE, clinical questions, board exam review, internal medicine, infectious disease, neurology, cardiology, endocrinology, hematology, pharmacology, pediatrics, obstetrics, OMM, stroke syndromes, autoimmune markers, emergency medicine, exam preparation