In the final 2-4 weeks before Step 2 CK, every study hour must target the highest return. This means knowing which topics appear disproportionately and which represent reliable scoring opportunities.
Highest-Yield Organ Systems
Internal medicine dominates the exam — cardiology (ACS, CHF, AF, hypertension), pulmonology (asthma, COPD, PE, pneumonia), gastroenterology (cirrhosis, GI bleeding, IBD, pancreatitis), and endocrinology (diabetes management, thyroid, adrenal) collectively represent the largest question block. OB/GYN has a high question count relative to its weight in clinical practice — prenatal care timeline, labour management, common complications, contraception. Psychiatry is high-yield because the questions follow predictable patterns: diagnostic criteria + first-line treatment for each major disorder. If you know the DSM-5 criteria and first-line pharmacotherapy, these are reliable points.
Disproportionately Tested
Biostatistics and epidemiology appear in every question block — sensitivity, specificity, PPV, NPV, NNT, study design, bias. This content is finite and highly scoreable with 2-3 hours of focused review. Preventive medicine and screening guidelines (USPSTF grade A and B recommendations) are tested repeatedly. Ethics and patient safety — informed consent, capacity assessment, advance directives, duty to warn, reporting obligations — represent 2-4 questions per block and are free points if you know the frameworks.
Free Points
Immunisation schedules. Cancer screening guidelines (colon, breast, cervical, lung). Prenatal care timeline. Domestic violence and depression screening. These questions reward memorisation of guidelines — invest 1-2 hours to lock them in.
Deprioritise If Time Is Short
Rare genetic conditions and inborn errors of metabolism. Obscure biochemistry pathways. Uncommon surgical procedures. Tropical infectious diseases rarely encountered in US practice. These appear infrequently — time invested has low return relative to the topics above.
Final 2-Week Strategy
Timed blocks daily + iatroX adaptive mode targeting weak areas exclusively. No new content — only review and reinforcement. Practice exam early in the final 2 weeks, followed by targeted drills on revealed gaps. Review USPSTF guidelines, immunisation schedule, and prenatal care timeline one more time.