Practice Test

The Medical Dosimetrist Certification Board of Directors (MDCB) makes available a practice test to be used as a study aid for the MDCB Certification Exam. The test is composed of revised questions from the actual item bank. The MDCB practice test, unlike other study guides, is a true representation of the MDCB CMD exam.

Practice tests are intended to be a supplement to exam preparation. Although the questions in the study guide are representative of the exam questions, they do not fully address all the categories and sub-categories of the exam matrix domains. Practice tests previously made available, may include detail that is no longer current. 

Exam candidates should be familiar with popular textbooks covering subjects in radiobiology, physics, dosimetry, cross sectional anatomy, and principles of radiation oncology practice. Questions are also drawn from reports that are relevant to current dosimetry practice published by the AAPM, ABS, ASTRO, ICRU, ICRP and NCRP as well as published RTOG clinical trials and NCCN guidelines. Details about how the certification exam is developed and recommended references are available at

Click here to download the practice test.