MDRAO Medical Device Reprocessing Practice Test PDF (Free Printable 2026 July)

What Is the MDRAO Certification Exam?

The Medical Device Reprocessing Association of Ontario (MDRAO) offers a certification examination for sterile processing and central supply technicians working in Ontario healthcare facilities. Passing this exam demonstrates competence in decontaminating, inspecting, assembling, sterilizing, and distributing reusable medical devices in compliance with Canadian standards.

MDRAO certification is recognized across Ontario hospitals and surgical centres as evidence of professional training and infection control knowledge. The exam covers all stages of the reprocessing cycle and references key regulatory frameworks including CSA Z314 and ORNAC guidelines.

MDRAO Exam Domain Breakdown

Decontamination

The decontamination domain covers the initial receiving and sorting of soiled instruments, point-of-care pre-cleaning, manual cleaning techniques, automated washer-disinfector operation, and ultrasonic cleaning. You must know the correct dilution ratios for enzymatic detergents, appropriate water quality requirements, and the Spaulding Classification for determining required decontamination levels (critical, semi-critical, non-critical).

Study tip: Memorise the order of the reprocessing cycle — containment, transport, sorting, cleaning, inspection — and know which step breaks the chain of infection at each stage.

Inspection, Assembly, and Packaging

This domain tests your ability to inspect instruments for cleanliness, functionality, and damage before packaging. You must understand tray assembly documentation, correct packaging materials (peel pouches, woven and non-woven wraps), proper sealing techniques, and labelling requirements including lot control numbers and expiry dating.

Study tip: Review the specific fold patterns for wrapped instrument sets and know the MDRAO standards for acceptable seal integrity on peel pouches.

Sterilization Methods and Monitoring

Sterilization is the largest domain. You must understand steam sterilization (gravity and pre-vacuum cycles), ethylene oxide (ETO), hydrogen peroxide plasma (STERRAD), and dry heat sterilization — including correct cycle parameters, load configuration, and contraindications for each method. Monitoring covers biological indicators (BIs), chemical indicators (CIs) Classes 1–6, and the Bowie-Dick test for pre-vacuum steam sterilizers.

Study tip: Create a comparison table of all four sterilization methods with their temperature, exposure time, penetration ability, material compatibility, and monitoring requirements side by side.

Storage, Distribution, and Regulatory Standards

The final domains cover sterile storage conditions (temperature, humidity, shelf life), event-related vs. time-related sterility, and recall procedures. Regulatory knowledge includes CSA Z314 series standards, ORNAC infection prevention guidelines, and Ontario Ministry of Health reprocessing requirements. Infection prevention principles — including hand hygiene, PPE, and transmission-based precautions — round out the exam content.

How to Use This MDRAO Practice Test PDF

Print the PDF and answer each question without consulting references to simulate real exam conditions. After completing the test, review every incorrect answer against your CSA Z314 and ORNAC study materials to identify content gaps.

Pay particular attention to sterilization cycle parameters — temperature, time, and pressure values for each method — as these are high-frequency exam topics that require precise recall. Decontamination chemical handling and the Spaulding Classification are also commonly tested.

Use the practice test results to build a targeted study list. Focus extra review time on domains where you missed more than two questions. Repeat the timed practice at least twice before your scheduled exam date.

Preparing for the MDRAO Certification

Candidates for MDRAO certification should have hands-on experience in a central sterile services department (CSSD) in addition to formal study. Practical familiarity with the equipment you encounter on the exam — autoclaves, washer-disinfectors, ultrasonic cleaners, STERRAD units — provides context that makes written questions much easier to interpret.

Many candidates use a combination of the MDRAO study guide, CSA Z314 standards documents, and practice tests to prepare. The exam is multiple-choice format and covers both theoretical knowledge and applied decision-making in real reprocessing scenarios.

Ontario technicians who hold MDRAO certification may also pursue national recognition through the Canadian Standards Association and provincial equivalency programs. Keeping your certification current through continuing education ensures your skills stay aligned with evolving infection control standards.