Practice the five AHIMA blueprint domains plus an RSI Prep Extension lane with RSI item quality controls — Bloom balance and answer-key spread you can trust before test day.
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RSI tags 300 items across six prep domains (five AHIMA blueprint bands plus D6 RSI Prep Extension). Canonical labels match prep/chda/CHDA_TAXONOMY.md and the live prep app. Confirm task-level requirements against the current AHIMA CHDA exam content outline before you register or sit for the exam.
| Domain | Label (canonical) | Items | Weight |
|---|---|---|---|
| D1 | D1 - Business Needs Assessment (~19-23%) | 50 | ~19-23% (blueprint band) |
| D2 | D2 - Data Acquisition and Management (~21-25%) | 50 | ~21-25% (blueprint band) |
| D3 | D3 - Data Analysis (~19-23%) | 50 | ~19-23% (blueprint band) |
| D4 | D4 - Data Interpretation and Reporting (~20-24%) | 50 | ~20-24% (blueprint band) |
| D5 | D5 - Data Governance (~11-15%) | 50 | ~11-15% (blueprint band) |
| D6 | D6 - RSI Prep Extension | 50 | RSI prep extension (not on AHIMA outline) |
| Total | 300 | D1-D5 per issuer outline; D6 is RSI-defined | |
Subdomains inside D4 and the RSI D6 extension keep weekly study plans focused. See CHDA_TAXONOMY.md for internal codes.
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CHDA (Certified Health Data Analyst) is offered by AHIMA. Exam fees, eligibility, and renewal rules change; confirm on official AHIMA certification pages before you budget.