CTP Certification

What the Certified Transplant Preservationist Credential Covers

The Certified Transplant Preservationist credential, abbreviated CTP, is awarded by the American Board for Transplant Certification (ABTC). It validates the knowledge of professionals who work in organ preservation: the people involved in recovering organs, preserving them, collecting associated specimens, and labeling and packaging them for transport. If you are new to the acronym itself, our explainers on what CTP certification is and what CTP stands for cover the basics, and this article goes deeper into the exam mechanics and preparation strategy.

One note on identity: "CTP" is shared by several unrelated credentials in other fields. Everything on this page refers only to the ABTC Certified Transplant Preservationist exam, so be careful when reading forum posts or third-party study materials that may be describing a different certification entirely. When a source mentions treasury, payments, or other non-transplant topics, it is not about this exam.

The credential matters in a field where the stakes are high and the work is technical. Employers and organ procurement settings value documented, standardized knowledge, and the exam is built around the real tasks a preservationist performs rather than abstract theory. For a look at the kinds of roles where this knowledge applies, see our overview of CTP jobs.

Eligibility and the 90-Day Authorization Window

ABTC requires 12 months of organ-preservation work experience to qualify. That experience does not need to be your full-time responsibility, which is helpful for candidates whose roles blend preservation with other duties. Your supervisor must attest to the experience as an employee verification. For a fuller walkthrough of prerequisites, see CTP requirements and how to qualify.

Once you are approved, ABTC provides a 90-day examination-eligibility window in which to sit for the test. Here is where candidates get tripped up: public instructions differ on when that 90-day clock starts. Some descriptions tie it to payment, others to application approval, and others to eligibility confirmation. These are not interchangeable triggers.

Because fees are nonrefundable and apply again to reapplications, treat the authorization window as a hard deadline. Work backward from your end date, confirm test-center availability early, and build your study calendar around a confirmed appointment rather than an optimistic one. Our guide to CTP exam dates and scheduling goes into more detail on planning.

What a Single Attempt Really Costs

The pricing is straightforward but easy to underestimate if you only see the headline exam fee. Each attempt involves two charges, and international candidates face a third.

The practical lesson is that a failed attempt is expensive. Because the application fee is charged again with each reapplication, a retake costs the same $645 as the first try. That makes thorough preparation a financial decision as much as an academic one. For the complete picture, including how these costs compare to other expenses, read our CTP certification cost breakdown.

Exam Format and the 110-Versus-120 Question Conflict

According to the current ABTC Candidate Handbook (the file dated August 13, 2026), the exam contains 110 multiple-choice questions. Of these, 100 are scored and 10 are unscored pretest items used by ABTC to evaluate future questions. You get two hours to finish. Each question has four options with one best answer.

• Computer-based testing at PSI test centers
• Closed book; calculators are prohibited
• Two forms of identification are required at check-in
• You cannot tell which items are unscored, so treat every question as if it counts

Why you may see "120 questions" elsewhere

If you have looked at PSI's public store listing for the practice product, you may have noticed it still describes a 120-question certification exam. That conflicts with the current ABTC handbook. The handbook controls the live exam count, so plan around 110 items. The discrepancy most likely reflects a listing that has not been updated, but the safe approach is to treat the handbook as authoritative and confirm any doubts with ABTC.

The Five Domains and Where the Scored Items Sit

The exam content outline lists five domains. ABTC distributes scored items across recall, application, and analysis levels; adding those columns yields the following allocations of the 100 scored items. These are item counts, not issuer-published percentage weights, so think in terms of counts when you prioritize. For a deeper breakdown, see the complete guide to all five CTP content areas.

Reading the 52% Historical Pass Rate Correctly

ABTC's March 2025 statistical report records a 2024 CTP pass rate of 52% among 86 candidates. It is tempting to treat that number as a prediction for your own attempt, but it is easy to misuse. Be careful with three points:

• It is historical. It reflects 2024, not 2026, and conditions or candidate mix may differ.
• It is not a passing score. It tells you the share of candidates who passed, not how many questions you must answer correctly.
• It is not a first-attempt-only figure. The report does not document it as limited to first-time candidates, so it may blend first attempts and retakes.

The sample is also fairly small at 86 candidates, so year-to-year swings are natural. The most useful reading is qualitative: roughly half of those who sat for the exam passed, which tells you the test is a genuine screening exam rather than a formality. Take it as motivation to prepare seriously. For more context, see our analysis of the CTP pass rate and the difficulty guide.

No fixed numeric passing mark

ABTC bases passing on overall performance measured against an expert-established examination standard. It is not a published percentage, and you do not pass or fail by domain. That means you cannot game the exam by perfecting one area and ignoring another; strong overall performance is what counts. We explain this further in our piece on the CTP passing score.

Practice Tests and the PSI Self-Assessment

PSI's public store lists an official Self-Assessment Examination for $60. It contains 30 questions, provides 60 days of access, and allows one scored attempt. Two cautions apply. First, only the public listing was reviewed for this article, not the paid question bank, so we cannot describe the quality or difficulty of the questions inside. Second, the listing's mention of a 120-question exam conflicts with the current handbook, as discussed above.

With only one scored attempt, the self-assessment is best used as a checkpoint late in your preparation, not as an early learning tool. Burn it when you have covered all five domains and want an honest read on readiness. For broader repetition across all domains, a larger bank of original practice questions is a better primary tool; you can try our CTP practice test for domain-organized question practice.

Original Practice-Style Questions

The following are original questions written for educational review. They illustrate the single-best-answer style but are not drawn from the actual exam. They address exam concepts only and are not clinical instructions; always follow your organization's current approved policies and procedures in real practice.

Question 1 (Professional Practice). A preservationist notices that a required form was completed by a colleague but one entry appears inconsistent with the labeled container. What is the BEST first action?

1. Correct the entry from memory and continue
2. Verify the discrepancy against source information and follow the documented escalation process
3. Ignore it because the colleague completed the form
4. Discard the form and begin a new one without notation

Answer: B. Discrepancies should be verified against source information and handled through the proper documented channel rather than altered from memory or ignored.

Question 2 (Organ Preservation). Why is maintaining asepsis emphasized throughout the preservation process?

1. It reduces the number of required labels
2. It limits the risk of introducing contamination that could affect the organ and the recipient
3. It shortens transport time
4. It replaces the need for documentation

Answer: B. Sterile technique protects organ integrity and downstream recipient safety.

Question 3 (Organ Labeling and Packaging for Transport). Which practice BEST reduces the risk of an identification error at handoff?

1. Relying on verbal confirmation alone
2. Verifying labeling elements against accompanying documentation at each transfer
3. Labeling only the outer container
4. Postponing verification until arrival

Answer: B. Verifying labels against documentation at each transfer creates redundant checks that catch errors early.

Sequencing Your Study Around the Domains

Because the domains differ in scored-item weight, sequence your preparation to put the heaviest material first and revisit it near the end. Start from the official outline and our CTP study guide, then adapt the plan below to your own timeline and prior experience. A quick reference like the CTP cheat sheet is useful for last-week review.

The reason for this order is simple: the two largest domains benefit most from repetition and from being revisited, while the smaller detail-driven domains reward focused, shorter bursts closer to test day. Adjust the pacing if you already work daily in recovery or preservation, since experience may let you compress those weeks.

Retakes, Renewal, and Keeping the Credential

If you do not pass

Retakes require a 90-day interval between attempts. After three unsuccessful attempts, you must earn 20 Category 1 CEPTCs before you can reapply. Each reapplication carries the full $645 again, so use the waiting period for targeted remediation: review your weakest domains using your score feedback and rebuild from the handbook outline.

Staying certified

Certification is valid for three years. To renew, you need 60 CEPTCs, including at least 20 Category 1 and 10 Category 2 points, or you may successfully re-examine. The single-certification renewal fee is $395. Start collecting continuing education early so you are not scrambling near the deadline; you can find the current requirements on ABTC's recertification pages.

Career Value Without Assuming a Pay Premium

It is natural to ask whether the credential pays off, but be wary of anyone who promises a specific salary bump. There is no basis here for assuming that holding the CTP automatically raises pay, and this article does not cite any earnings figures. The more defensible way to think about value is qualitative: documented competence, credibility with employers and colleagues, and eligibility for roles where certification is valued or expected.

Weigh the real costs against that value: $645 per attempt, a preparation investment, and $395 at each renewal, plus the continuing education required to keep the credential current. Your own employer, role, and local market will determine the return far more than any generic claim. For a structured way to think it through, see our ROI analysis and the salary guide, which treat pay as something to verify rather than assume.

Frequently Asked Questions

Whatever your timeline, confirm every date and requirement directly with ABTC and PSI, build your plan around the domain structure above, and use original practice questions to find and close gaps before you sit for the exam. When you are ready to test yourself, head back to our practice test site for domain-aligned review.