If you need help studying for the DANB Radiation Health and Safety (RHS) exam or just want some more information about what the test is like, you’ve come to the right place.
Click below to take a free DANB RHS practice test!
About the Exam
The DANB Radiation Health and Safety exam is just one part of the overall DANB CDA exam (as well as the NELDA exam). To obtain your CDA certification, you’ll need to pass this exam AND the other two components:
What’s on the Exam?
There are 75 questions on the exam, which are grouped into four sections, and the time limit is 1 hour.
Let’s take a closer look at each section of the exam:
1. PURPOSE AND TECHNIQUE
50% of the exam
- Anatomical landmarks, materials, and conditions observed on images
- Purpose of dental images
- Techniques for acquiring dental images
- Technique modifications
- Error correction
- Purpose of radiographic equipment
- Patient management techniques
- Image viewing and mounting
- Legal requirements for maintaining dental images
2. RADIATION PROTECTION
25% of the exam
- Radiation physics
- Radiation biology
- Radiation protection
3. INFECTION PREVENTION AND CONTROL
25% of the exam
- Standard precautions for equipment and supplies
- Standard precautions for patients and operators
Computer-Adaptive Testing (CAT)
The DANB RHS exam is a computer-adaptive test. Basically, this means that the questions will become harder or easier as you go through the exam, based on how well you’re answering the questions.
For example, say you answered the first question correctly. The first question is of medium difficulty, so the next question will be slightly harder. Then, let’s say you answered the second question incorrectly. The next question would then be a medium question.
How to Register
Once you’ve ensured that you meet all of the eligibility requirements, you can register for the exam!
To get started, you’ll need to submit an application on DANB’s website. The application will ask you for your contact information and any documentation to prove your eligibility (among other things). When you submit the application, you’ll also need to submit the application fee, which is $75.
As soon as you receive authorization to test, you can register to take the exam. You’ll need to pay the $270 testing fee as part of the registration process.
DANB Radiation Health and Safety Study Guide and Flashcards
Get practice questions, detailed study lessons, and complex subjects broken down into easily understandable concepts.
Exam Scores
The DANB RHS exam is scored using a scaled scoring method. Here’s how it works:
You will need a score of 400 to pass the exam.
The reason your raw score is converted to a scaled score is because everyone who takes the exams is given a slightly different set of questions. Since everyone has a different arrangement of questions, and because some questions are harder than others, converting your raw score to a scaled score ensures a more even playing field.
Retaking the Exam
If you didn’t get a passing score on your first try, that’s okay! You can retake the exam as many times as you need.
FAQs
How many questions are on the DANB RHS exam?
The exam contains 75 questions.
What is the time limit for the DANB RHS exam?
The exam is timed at 1 hour.
What is the passing score for the DANB RHS exam?
You’ll need to get a final score of at least 400 to pass.
How much does the DANB RHS exam cost?
The exam fee is $270.