The Dental Assisting National Board, Inc. (DANB) offers the Certified Dental Assistant (CDA) Examination for national certification purposes. In pursuit of CDA certification, candidates must successfully complete three tests – GC, RHS and ICE – in 5 years. The tests are acknowledged and/or mandatory in 37 states. The Radiation Health and Safety (RHS) examination is one of the three tests included in the CDA Exam as a whole.
For the RHS assessment, you will have 1 hour and 15 minutes to finish 100 multiple-choice questions. The content of the test is broken down as follows:
- Expose and evaluate (intraoral, extraoral) – 37%
- Process – 16%
- Mount/label – 11%
- Radiation safety-patient – 24%
- Radiation safety-operator – 12%
The raw score, or the number answered correctly, will be converted to a scaled score in the 100-900 range. The minimum passing scaled score is 400. If unsuccessful in the attempt, a candidate may apply to take it again, but check with the local jurisdiction to find out if additional educational requirements have to be met first.