CER Exam Study Guide + Free Practice Questions
The HSPA Certified Endoscope Reprocessor (CER) exam has 150 multiple-choice questions, of which 125 are scored, and is taken on a computer at a Prometric test center. Start with the free CER practice test to check your knowledge of cleaning, disinfection and handling.
CER Practice Questions (with Answers)
Five sample CER-style questions on endoscope reprocessing, with the answer and a short explanation for each.
1. When should pre-cleaning of a flexible endoscope begin?
- A. At the end of the day
- B. Immediately after the procedure at the point of use
- C. Only after high-level disinfection
- D. After the scope has dried
Answer: B. Pre-cleaning at the point of use keeps soil from drying and hardening in the channels, which makes later cleaning effective.
2. What is the purpose of a leak test?
- A. To check that the scope is disinfected
- B. To detect damage to the scope's outer covering before it is immersed
- C. To measure disinfectant concentration
- D. To dry the channels
Answer: B. A leak test finds breaches so that fluid does not enter the scope and cause costly internal damage.
3. Why is the minimum effective concentration (MEC) of a high-level disinfectant tested?
- A. To confirm the solution still meets the manufacturer's level needed for disinfection
- B. To check the water temperature
- C. To count the number of uses
- D. To neutralize the soil
Answer: A. Repeated use dilutes the solution, so MEC testing confirms it is still effective before each use.
4. After high-level disinfection, which step helps prevent microbial growth in the channels?
- A. Leaving the scope wet in the case
- B. Flushing with alcohol and drying thoroughly with forced air
- C. Wrapping the scope while damp
- D. Rinsing with tap water only
Answer: B. Thorough drying removes the moisture bacteria need to grow during storage.
5. How should clean, dry flexible endoscopes generally be stored?
- A. Coiled in a closed case
- B. Hanging vertically in a clean, ventilated cabinet
- C. Lying flat in a drawer
- D. Stacked in a basin
Answer: B. Vertical hanging lets residual moisture drain and protects the scope from damage and contamination.
Want more? Take the full free CER practice test or download the CER practice test PDF further down this page.
CER: upcoming dates and official changes
- Updated Oct 25, 2026: Delivery is now Computer-based at Prometric test centers; no paper version (previously Computer-based at Prometric test centers; no paper version; optional 15-min tutorial not timed).
- Updated Oct 25, 2026: Exam fee is now $140 per application (includes one exam attempt) (previously $140 (includes $25 non-refundable fee; one attempt)).
- Updated Oct 25, 2026: Retake fee is now $140 per retake (previously $140 per retake).
Facts verified Oct 29, 2026 against Healthcare Sterile Processing Association. Dates that have passed are removed automatically.
CER Exam Overview
The CER (Certified Endoscope Reprocessor) exam is a standardized assessment that validates your knowledge and readiness in the field. Whether you are a first-time test taker or retaking after a previous attempt, understanding the exam structure is the first step toward success.
The CER exam typically covers multiple content areas, each weighted differently in the final score. Familiarizing yourself with the exam format — including question types, time limits, and scoring methodology — allows you to allocate your study time effectively.
What to Expect on Exam Day
- Format: The exam consists of multiple-choice questions designed to test both knowledge recall and applied understanding
- Duration: Plan for a full testing session — arrive early to complete check-in procedures
- Scoring: Each section contributes to your overall score; there is no penalty for guessing on most standardized exams
- Preparation: Use CER Practice Tests to familiarize yourself with the question style and difficulty level
The most successful candidates begin their preparation 30 to 60 days before the exam date, following a structured study plan that covers all tested domains.
CER Study Timeline: Your 30-60 Day Plan
A well-structured study plan is the single most important factor in passing the CER (Certified Endoscope Reprocessor) exam. The timeline below provides a proven framework that balances content review, practice testing, and targeted remediation.
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Many readers pair this guide with the hspa endoscope reprocessing manual pre test to check their readiness before exam day.
Days 1-10: Foundation Building
- Review all content domains — Read through official study materials and identify the major topic areas
- Take a diagnostic practice test — Use FREE CER Principles and Maintenance Questions and Answers, FREE CER Endoscope Reprocessing Fundamentals Questions and Answers, CER - Certified Endoscope Reprocessor Microbiology and Infection Control Questions and Answers to establish your baseline knowledge level
- Identify weak areas — Score your diagnostic test and note which domains need the most attention
- Create a study schedule — Dedicate 1-2 hours daily, with longer sessions on weekends
Days 11-30: Deep Content Review
- Focus on weak areas first — Spend 60% of study time on your lowest-scoring domains
- Use active learning techniques — Create flashcards, write summaries, and teach concepts to others
- Take topic-specific practice tests — Complete practice questions after each content area review
- Track your progress — Keep a study journal to monitor improvement in each domain
Days 31-45: Practice and Reinforcement
- Take full-length practice exams — Simulate real testing conditions with timed practice tests
- Review every wrong answer — Understand why the correct answer is right, not just what it is
- Revisit difficult concepts — Return to topics where you consistently score below 80%
- Join study groups — Discuss challenging topics with other candidates preparing for the exam
Days 46-60: Final Preparation
- Take 2-3 final practice exams — Aim for consistent scores above 85% before test day
- Light review only — Avoid cramming new material in the final week
- Prepare logistics — Confirm your test center location, required identification, and arrival time
- Rest and recover — Get adequate sleep the night before; mental fatigue reduces performance
Key Topics to Focus On for the CER Exam
Not all topics carry equal weight on the CER (Certified Endoscope Reprocessor) exam. Strategic candidates focus their study time on high-yield areas — topics that appear most frequently and carry the most points.
High-Priority Content Areas
- FREE CER Principles and Maintenance Questions and Answers — Master the fundamental concepts and their practical applications in real-world scenarios
- FREE CER Endoscope Reprocessing Fundamentals Questions and Answers — Master the fundamental concepts and their practical applications in real-world scenarios
- - Certified Endoscope Reprocessor Microbiology and Infection Control Questions and Answers — Master the fundamental concepts and their practical applications in real-world scenarios
- - Certified Endoscope Reprocessor Endoscope Design and Structure Questions and Answers — Master the fundamental concepts and their practical applications in real-world scenarios
- - Certified Endoscope Reprocessor Work Area Design & Workflow Questions and Answers — Master the fundamental concepts and their practical applications in real-world scenarios
Study Priority Matrix
| Priority Level | Action | Time Allocation |
|---|
| High Priority | Topics you scored below 60% on diagnostic tests | 40% of study time |
| Medium Priority | Topics you scored 60-80% on diagnostic tests | 35% of study time |
| Low Priority | Topics you scored above 80% on diagnostic tests | 15% of study time |
| Review Only | Topics you consistently score above 90% | 10% of study time |
Use practice tests to identify which category each topic falls into for your personal preparation plan.
CER Study Resources and Materials
Having the right study resources makes the difference between passing and failing. Here are the most effective resources for CER (Certified Endoscope Reprocessor) exam preparation, ranked by impact.
Essential Resources
- Official Study Guides — Always start with materials published by the certifying organization; these align directly with exam content
- Practice Tests — CER Practice Tests provide the closest simulation of the actual exam experience
- Flashcard Sets — Create your own or use pre-made sets to reinforce key terminology and concepts
- Study Groups — Connect with other candidates through online forums and local study groups
Recommended Study Strategy
| Resource Type | When to Use | Effectiveness |
|---|
| Textbooks/Guides | Days 1-30 (content learning) | High — builds foundation |
| Practice Tests | Throughout (weekly minimum) | Very High — identifies gaps |
| Flashcards | Daily (15-20 min sessions) | Medium — reinforces memory |
| Video Tutorials | As needed for difficult topics | Medium — visual learning |
| Study Groups | Weekly meetings | Medium — peer discussion |
Take advantage of FREE CER Principles and Maintenance Questions and Answers, FREE CER Endoscope Reprocessing Fundamentals Questions and Answers, CER - Certified Endoscope Reprocessor Microbiology and Infection Control Questions and Answers to test your knowledge regularly throughout your study period. Research shows that frequent testing improves retention by up to 50% compared to passive reading alone.
Test Day Tips for the CER Exam
Your performance on the CER (Certified Endoscope Reprocessor) exam depends not only on what you know but also on how well you manage the testing experience itself. These proven strategies help you perform at your best.
Before the Exam
- Get 7-8 hours of sleep — Cognitive performance drops significantly with less than 6 hours of sleep
- Eat a balanced meal — Include protein and complex carbohydrates; avoid heavy or unfamiliar foods
- Arrive 30 minutes early — This allows time for check-in without added stress
- Bring required documents — Valid photo ID, confirmation number, and any permitted reference materials
- Minimize caffeine — Moderate amounts are fine, but excess caffeine increases anxiety
During the Exam
- Read each question carefully — Look for qualifying words like "always," "never," "most," and "except"
- Manage your time — Divide total time by number of questions to set a pace; flag difficult questions and return to them
- Eliminate wrong answers — Even if unsure, eliminating 1-2 options significantly improves your odds
- Trust your preparation — Your first instinct is usually correct; avoid changing answers without a clear reason
- Stay calm during difficult sections — If you encounter a challenging question, take a deep breath and move on; come back to it later
Time Management Strategy
| Phase | Action | Time Allocation |
|---|
| First Pass | Answer all questions you know immediately | 60% of total time |
| Second Pass | Return to flagged questions and work through them | 25% of total time |
| Final Review | Check answers and ensure no questions are skipped | 15% of total time |
Common Mistakes to Avoid on the CER Exam
Understanding what not to do is just as important as knowing the right strategies. Here are the most common mistakes that cause candidates to fail the CER (Certified Endoscope Reprocessor) exam — and how to avoid them.
Preparation Mistakes
- Starting too late — Cramming in the final week leads to poor retention; begin at least 30 days before your exam date
- Ignoring weak areas — It is natural to study what you already know, but focusing on weaknesses yields the biggest score improvements
- Not taking practice tests — Practice exams are the closest thing to the real test; use CER Practice Tests to simulate the experience
- Relying on a single resource — Use multiple study materials to get a well-rounded understanding of all topics
- Studying passively — Reading without actively testing yourself leads to an illusion of competence
Test Day Mistakes
- Spending too long on one question — If a question takes more than 90 seconds, flag it and move on
- Changing answers without reason — Research shows first answers are correct more often than changed answers
- Not reading all answer choices — The best answer may be the last option listed
- Panicking during difficult sections — Difficult questions are often mixed with easier ones; maintain composure
- Leaving questions blank — Unless there is a penalty for wrong answers, always select an answer
Candidates who avoid these common pitfalls and follow a structured study plan consistently achieve passing scores on their first attempt.
CER Pros and Cons
Pros
- Structured CER study guides organize all required content in exam-aligned order, reducing time spent identifying what to study
- Combining review guides with practice questions provides both content knowledge and test-taking fluency
- Focused study plans allow candidates to allocate more time to weak areas rather than reviewing already-mastered content
- Free and low-cost study resources mean comprehensive preparation is accessible at any budget level
- Spaced repetition techniques (Anki, regular review sessions) significantly improve long-term retention of tested facts
Cons
- No single study guide covers all tested content optimally — most candidates need 2–3 resources for complete preparation
- Study guides can become outdated quickly when exam content is updated; verify edition currency before purchasing
- Self-study requires self-discipline; candidates without structured external accountability often underallocate preparation time
- Coverage breadth in comprehensive guides can create false confidence — recognizing content is not the same as answering questions correctly under timed conditions
- Study time estimates in guides often assume ideal conditions; real preparation time is typically 30–50% longer due to life disruptions
📝 📝 How many questions are on the CER exam?
The HSPA CER exam has 150 multiple-choice questions. It is computer-based only, with no paper version, and questions can be marked for review and changed later.
⏱️ ⏱️ How long is the CER exam?
You get three hours to complete the 150 questions, about 72 seconds per question. A 15-minute computer tutorial runs before the timed exam starts.
💵 💵 How much does the CER exam cost?
The HSPA application fee for the initial CER exam is $140, and each retake also costs $140. The fee covers application processing and one attempt at a Prometric testing center.
🏥 🏥 What experience do you need to take the CER exam?
HSPA requires at least three months of hands-on endoscope reprocessing experience, paid or volunteer, completed within the past three years. A supervisor, lead tech, manager or hospital educator must document the hours on your application.
❓ ❓ Do you need CRCST certification before the CER?
No. The CER is a standalone HSPA certification, so a current CRCST is not required to apply or test. CRCST is only a prerequisite for the CIS and CHL exams.
📚 📚 What topics are on the CER exam?
The CER content outline has seven domains: microbiology and infection control; endoscope purpose, design and structure; work area design; reprocessing steps; handling, transport and storage; tracking, repair and system maintenance; and human factors.
📖 📖 What books should I study for the CER exam?
HSPA lists its Endoscope Reprocessing Manual (2nd ed.), ANSI/AAMI ST91 (2022), the CDC Essential Elements of a Reprocessing Program for Flexible Endoscopes (2017), and SGNA infection-prevention and high-level disinfectant guidelines as exam references.
🔁 🔁 How soon can you retake the CER exam if you fail?
HSPA enforces a mandatory 6-week wait between attempts. You can submit a retake application right away, but the new eligibility period starts 6 weeks after your last exam, and your score report shows performance by domain.
🧫 🧫 Which Spaulding category are flexible GI endoscopes?
Flexible GI endoscopes touch mucous membranes, so they are semi-critical devices under the Spaulding classification. They need at minimum high-level disinfection after thorough cleaning, and sterilization where the manufacturer IFU allows it.
🔄 🔄 How do you keep CER certification after passing?
CER holders recertify every year by earning 6 continuing education credits focused on endoscopes and paying the renewal fee ($50 certification only, $60 with HSPA membership). Missing the deadline triggers a six-week grace period.
CER Questions and Answers
How long should I study for the CER exam?
Most successful candidates study for 30 to 60 days before the exam. Plan for 1-2 hours of daily study time, with longer sessions on weekends. The exact timeline depends on your baseline knowledge and experience in the field.
Can I retake the CER exam if I fail?
Yes, most certifying organizations allow retakes after a waiting period. Check the specific retake policy, including any waiting periods, additional fees, and limits on the number of attempts. Use the time between attempts to focus on your weakest areas.
What are the best study materials for the CER exam?
The most effective study approach combines official study guides from the certifying organization, practice tests, flashcards, and study groups. Practice tests are especially valuable because they familiarize you with the question format and help identify knowledge gaps.
Is the CER exam difficult?
The difficulty depends on your preparation level and background knowledge. Candidates who follow a structured study plan and take multiple practice tests typically find the exam manageable. Focus on understanding concepts rather than memorizing answers for the best results.
Where can I find free CER practice tests?
PracticeTestGeeks offers a free CER practice test with answer explanations on endoscope handling, cleaning, reprocessing and storage. Take it online without paying and review every explanation. The official HSPA study resources are a good second source to confirm details.
Is there a CER practice test PDF?
Yes. This guide includes a free CER practice test questions and answers PDF you can download and print for offline study. Since the real exam is computer-based at Prometric, also use the online practice test to get used to answering on screen.
How many questions are on the CER exam and what is the passing score?
The HSPA CER exam has 150 multiple-choice questions: 125 scored and 25 unscored pretest questions. HSPA does not publish a percentage pass mark. Your result depends on how many of the 125 scored questions you answer correctly against a set cut score.
What does the CER exam cost and how long is it valid?
The CER exam application fee is $140, which covers one attempt. The certification is valid for one year and is renewed annually with 6 continuing education credits on endoscopes plus a $50 renewal fee. A failed candidate must wait at least 6 weeks to retest.
Official Resources
- HSPA Certified Endoscope Reprocessor (CER) — The Healthcare Sterile Processing Association's official CER page with eligibility rules, the exam content outline, fees and the online application.
- Society of Gastroenterology Nurses and Associates (SGNA) — Publisher of the infection-prevention and high-level disinfectant standards HSPA lists as CER exam references.
- AAMI — The Association for the Advancement of Medical Instrumentation, developer of ANSI/AAMI ST91, the flexible endoscope processing standard the CER exam draws on.