COMLEX Level 2 (COMLEX-USA Level 2-CE) – 60 Questions – Internal Medicine, Infectious Disease, Cardiology, OMM Q&A 2026

This document contains a structured set of approximately 60 high-yield COMLEX Level 2-style clinical questions with verified answers and illustrative explanations, designed to strengthen rapid recall and clinical reasoning for board exam success. It covers a wide range of essential topics including internal medicine, infectious diseases (e.g., HIV prophylaxis thresholds, actinomyces, cryptococcus), cardiology (e.g., hypertensive emergency management, constrictive pericarditis, arrhythmia management), neurology (e.g., Brown-Séquard syndrome), pharmacology, hematology, and osteopathic manipulative medicine (OMM). Early sections (pages 1–5) focus on foundational high-yield facts such as CD4 thresholds for PJP prophylaxis, HIT pathophysiology, and antibiotic management, while later sections expand into complex clinical decision-making scenarios, diagnostic strategies (e.g., CT for diverticulitis, electrodiagnostic testing for carpal tunnel), and advanced treatment protocols. The document integrates high-yield clinical associations, diagnostic algorithms, and evidence-based management strategies commonly tested on COMLEX-USA Level 2-CE. It includes detailed OMM techniques such as counterstrain positioning, muscle energy setups, and rib dysfunction treatments, alongside critical pharmacologic principles (e.g., nitroprusside for hypertensive emergencies, valproic acid for epilepsy). Additionally, it highlights key clinical pearls including infectious disease markers (e.g., Coombs-positive Mycoplasma pneumoniae), oncology associations (e.g., HER2-positive breast cancer treatment with trastuzumab), and epidemiology concepts such as bias types and prevention strategies. The concise Q&A format supports active recall, spaced repetition, and efficient final-stage revision. This resource is highly relevant for courses such as Clinical Medicine II, Internal Medicine Clerkship, Infectious Disease Modules, Cardiology, Neurology, Pharmacology, 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 suitable for students enrolled in integrated systems-based curricula and intensive board-review courses. 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 maximizing exam performance. Keywords: COMLEX Level 2, COMLEX USA Level 2 CE, clinical questions, board exam review, internal medicine, infectious disease, cardiology, neurology, pharmacology, hematology, OMM, HIV prophylaxis, hypertensive emergency, diverticulitis, carpal tunnel syndrome, oncology, exam preparation