What is the CMDRT certification exam?

The CMDRT exam is administered by the Medical Dosimetrist Certification Board (MDCB) and validates competency in medical dosimetry. Passing the exam earns the Certified Medical Dosimetrist (CMD) credential, which is recognized across radiation oncology departments in the United States. The certification demonstrates proficiency in treatment planning, radiation physics, and patient care.

What topics are covered on the CMDRT exam?

The CMDRT exam covers five major content areas: treatment planning and delivery, radiation physics and radiobiology, quality assurance and safety, anatomy and physiology, and professional responsibilities. Treatment planning carries the heaviest weight, making up roughly 40% of the exam. Candidates should also study beam modifiers, dose calculations, brachytherapy, and image-guided radiation therapy techniques.

What is the format of the CMDRT exam?

The CMDRT exam is a computer-based test delivered at Prometric testing centers throughout the United States. It consists of multiple-choice questions with four answer options each. Candidates receive a total of three and a half hours to complete the exam. Results are provided as pass or fail, along with a scaled score report broken down by content area.

What are the eligibility requirements for the CMDRT exam?

Candidates must complete an accredited medical dosimetry program or hold a bachelor's degree with equivalent coursework in radiation therapy or medical physics. Additionally, applicants need documented clinical experience in medical dosimetry. The MDCB requires candidates to submit an application verifying their education and clinical training before they are approved to schedule the exam.

How do I register for the CMDRT certification exam?

Registration is completed through the MDCB website at mdcb.org. Candidates must create an account, submit their application with educational transcripts and clinical documentation, and pay the required fees. Once the MDCB approves the application, candidates receive authorization to schedule their exam at a Prometric testing center within a designated testing window.

What is the passing score for the CMDRT exam?

The CMDRT exam uses a scaled scoring system, and the passing score is determined through a criterion-referenced standard-setting process established by the MDCB. The board does not publish a specific raw percentage required to pass. Each exam form is equated so that the passing standard remains consistent regardless of which version a candidate receives.

How often can I retake the CMDRT exam if I fail?

Candidates who do not pass the CMDRT exam may retake it during the next available testing window. The MDCB typically offers the exam during specific periods each year, so there may be a waiting period of several months between attempts. Retake candidates must submit a new application and pay the full examination fee for each subsequent attempt.

How long does CMDRT certification last before renewal?

The CMD credential is valid for a two-year cycle from the date of initial certification. To maintain active status, certified dosimetrists must complete continuing education credits and submit a renewal application to the MDCB before the expiration date. The board requires a minimum of 24 continuing education hours per renewal cycle, covering relevant dosimetry and radiation oncology topics.

CMDRT (Certified Medical Device Reprocessing Technician) Test 2026 July

✏️ Pass your CMDRT (Certified Medical Device exam on the first attempt. Practice questions with detailed answer explanations, hints, and instant scoring.

CMDRT - Certified Medical Device Reprocessing Technician By Dr. Sarah MitchellJul 1, 202661 min read

CMDRT (Certified Medical Device Reprocessing Technician) Test 2026 July

⏱️3 HoursTime Limit

📝150Questions

✅70%Pass Rate

💵$450Exam Fee

The CMDRT exam is administered by the CSA Group and is the gold standard for medical device reprocessing professionals in Canada. Passing this rigorous examination confirms your ability to safely clean, disinfect, and sterilize complex medical instruments.

CMDRT (Certified Medical Device Reprocessing Technician) Test - Certified Medical Device Reprocessing Technician preparation guide

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CMDRT Exam Flashcards

Quick review for the Certified Medical Device Reprocessing Technician exam

🦠What is the primary goal of decontamination?

To remove soil and pathogenic microorganisms from medical devices to make them safe to handle.

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🌡️What is the critical parameter for steam sterilization?

The relationship between temperature, pressure, and time is critical for effective steam sterilization.

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🛡️What PPE is required in decontamination areas?

Heavy-duty gloves, fluid-resistant gown, eye protection, and face mask are mandatory PPE.

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🧪What is a biological indicator?

A device containing viable microorganisms used to verify that sterilization conditions were met.

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📑What is the purpose of lot control numbers?

To enable traceability of sterilized items to the specific sterilization cycle and patient.

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🫧What is cavitation in ultrasonic cleaning?

The formation and collapse of bubbles that dislodge soil from instrument surfaces.

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MDRT CERTIFICATION QUIZ

CMDRT Exam Study Guide

Our comprehensive MDRT certification guide breaks down essential topics for the exam. Review these common questions to enhance your understanding of the Certified Medical Device Reprocessing Technician requirements.

What is the CMDRT credential?	The Certified Medical Device Reprocessing Technician (CMDRT) credential validates knowledge in cleaning, disinfecting, and sterilizing medical equipment according to CSA standards.
Who administers the CMDRT exam?	The CSA Group administers the CMDRT examination to ensure technicians meet national standards for competency and safety.
Why is MDRT certification important?	Obtaining MDRT certification demonstrates professional competence and commitment to patient safety, often leading to better job opportunities.
Do I need experience for the CMDRT test?	Yes, candidates typically need documented work experience or completion of a recognized MDRT course to be eligible for the exam.

What is the CMDRT credential?

The Certified Medical Device Reprocessing Technician (CMDRT) credential validates knowledge in cleaning, disinfecting, and sterilizing medical equipment according to CSA standards.

Who administers the CMDRT exam?

The CSA Group administers the CMDRT examination to ensure technicians meet national standards for competency and safety.

Why is MDRT certification important?

Obtaining MDRT certification demonstrates professional competence and commitment to patient safety, often leading to better job opportunities.

Do I need experience for the CMDRT test?

Yes, candidates typically need documented work experience or completion of a recognized MDRT course to be eligible for the exam.

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CMDRT Score Calculator

Total Scored Questions

150

How many questions did you answer correctly?

0105150

105 out of 150 correct

70%

Required to Pass: ~70% (Estimated)

Your Score: 105 correct✓PASS

Expect to invest between $2,000 and $4,000 total for your CMDRT certification, depending on your chosen mdrt course and location.

Certified Medical Device Reprocessing Technician - Certified Medical Device Reprocessing Technician study guide

CMDRT EXAM QUESTIONS QUIZ

FREE CMDRT TEST PRACTICE

CMDRT Test Day Checklist

✓Valid Govt ID (Passport/License)
✓Pearson VUE Confirmation
✓Arrive 30 mins early
✓Review CSA Standards
✓Leave electronics in locker
✓Bring light jacket (variable temp)
✓Hydrate before exam
✓Positive mindset!

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Join thousands of technicians who passed with our Free CMDRT Practice Test questions. Start studying now to secure your mdrt certification.

CMDRT Renewal Requirements

🔄

Cycle

5 Years

💵

Fee

$300

Keep track of your continuing education hours to ensure a smooth renewal process for your mdrt certificate.

✅Pros

+Industry-recognized credential boosts your resume
+Higher earning potential (10-20% salary increase on average)
+Demonstrates commitment to professional development
+Opens doors to advanced career opportunities

❌Cons

−Exam preparation requires significant time investment (4-8 weeks)
−Certification fees can be $100-$400+
−May require continuing education to maintain
−Some employers may not require certification

CMDRT Questions and Answers

About the Author

Dr. Sarah MitchellRN, MSN, PhD

Registered Nurse & Healthcare Educator

Johns Hopkins University School of Nursing

Dr. Sarah Mitchell is a board-certified registered nurse with over 15 years of clinical and academic experience. She completed her PhD in Nursing Science at Johns Hopkins University and has taught NCLEX preparation and clinical skills courses for nursing students across the United States. Her research focuses on evidence-based exam preparation strategies for healthcare certification candidates.