- The One-Page Snapshot
- Exam Format and Scoring Facts
- Eligibility, Fees, and Scheduling
- Content Domain Map
- Fundamentals of Pathology: The 40-50% Domain
- The Four Smaller Domains
- Pass Rate Numbers in Context
- Test-Center Rules
- Sequencing Your Review by Domain
- After You Pass: Credential Maintenance
- Frequently Asked Questions
- The exam is a 100-question computer adaptive test in 2 hours 30 minutes, and not every item is scored.
- A passing score is 400 on a 100-999 scale, not a raw percentage.
- Fundamentals of Pathology is the largest domain at 40-50% of content.
- The application and exam fee is a nonrefundable $550.
The One-Page Snapshot
This is the quick-reference version of everything a Pathologists' Assistant candidate should be able to recite from memory before booking a testing appointment. The official credential name is Pathologists' Assistant - PA(ASCP). It is awarded by the ASCP Board of Certification, and the exam is delivered at Pearson VUE testing centers once your eligibility is approved.
If you are still orienting yourself to the credential itself, start with What Is PA(ASCP)? or PA(ASCP) Certification. If you already know the basics and want a tighter plan, pair this sheet with the PA(ASCP) Study Guide 2026.
| Item | Fact to Memorize |
|---|---|
| Credential | Pathologists' Assistant - PA(ASCP) |
| Certifying body | ASCP Board of Certification |
| Test delivery | Pearson VUE testing centers |
| Questions | 100 total, four-option single-best-answer |
| Time | 2 hours 30 minutes |
| Format | Computer adaptive testing (CAT) |
| Passing score | 400 on a 100-999 scale |
| Application/exam fee | $550, nonrefundable |
| Largest domain | Fundamentals of Pathology, 40-50% |
| Maintenance | 3-year cycle, 60 CMP points, $110 fee |
Exam Format and Scoring Facts
Computer Adaptive Testing, Explained for This Exam
The Pathologists' Assistant exam uses computer adaptive testing. Each item is a four-option, single-best-answer multiple-choice question testing theoretical and procedural knowledge. You answer each question before advancing, and you may flag questions and revisit them at the end if time remains.
What the Score Actually Means
Your result is reported on a scale of 100 to 999, and the passing score is 400. This is a scaled score, not a raw 40% threshold, so do not try to convert it into a number of questions you can miss. For a deeper look at how scaled scoring works, see PA(ASCP) Passing Score 2026.
Because this is a CAT exam, the questions you see adapt to your performance. Practical consequences:
- A difficult question is not a sign you are failing; it often means the exam is probing your ability level.
- Do not spend your whole time budget on any single item. With 100 questions and 150 minutes, you have roughly a minute and a half per question on average.
- Answer every question. There is no benefit to leaving items blank, and you must answer before you can advance.
Eligibility, Fees, and Scheduling
Prerequisites at a Glance
The current credential page lists a single eligibility route, Route 1. It requires:
- At least a baccalaureate degree from an accredited college or university, where the degree-granting institution meets ASCP's regional or national accreditation requirement.
- Completion of a NAACLS-accredited Pathologists' Assistant program within the last five years, supported by training verification and transcripts or evaluations.
The five-year window matters. If your program completion is aging, check it before you plan a long study runway. The full breakdown lives in PA(ASCP) Requirements 2026.
Money and Timing
The application and exam fee is $550 and is nonrefundable. That makes it worth confirming your eligibility documents before you pay. After approval, you test at Pearson VUE within your Admission Notification period, so the window to schedule is limited and you should plan your study timeline backward from it. For the full cost picture, including maintenance fees, read PA(ASCP) Certification Cost 2026. For scheduling mechanics, see PA(ASCP) Exam Dates 2026.
Content Domain Map
The exam content guideline publishes five content areas with percentage ranges. The currently linked guideline was revised June 2, 2026 and explicitly includes Head and neck within systemic pathology. An older October 2025 guideline still exists at a different URL, so make sure you are studying from the version linked on the current credential page.
| Domain | Published Range |
|---|---|
| Fundamentals of Pathology | 40-50% |
| Anatomic Pathology Techniques | 10-15% |
| Anatomy | 10-15% |
| Autopsy Pathology | 10-15% |
| Laboratory Operations | 5-10% |
For a domain-by-domain walkthrough, see PA(ASCP) Exam Domains 2026: Complete Guide to All 5 Content Areas.
Fundamentals of Pathology: The 40-50% Domain
Nearly half of the exam falls here, so this is where the majority of your preparation hours belong. This domain houses the systemic pathology content, including the head and neck inclusion in the current guideline, along with the disease-process knowledge that underlies everything else a Pathologists' Assistant does.
Domain 1: Fundamentals of Pathology
This is the knowledge base that connects gross findings to disease. Expect questions that ask you to recognize what a process is, what it looks like, and why it matters at the bench or the autopsy table.
- Systemic pathology across organ systems, including head and neck per the current guideline
- General disease mechanisms: inflammation, repair, neoplasia, cell injury and adaptation
- Correlating gross appearance with likely diagnosis and with what specimens need next
- Staging and examination considerations for cancer specimens
Because the domain is so broad, the efficient approach is organ-system by organ-system review, always asking the same practical questions: what does the gross specimen look like, what are the important diagnostic considerations, and what does the pathologist need from me?
The Four Smaller Domains
Together the remaining four domains make up a substantial share of the exam, and several are the most hands-on content on the test.
Domain 2: Anatomic Pathology Techniques (10-15%)
Procedural knowledge of how specimens move from receipt to slide.
- Fixation, grossing approach, and tissue handling
- Processing, embedding, microtomy, and staining concepts
- Recognizing technique problems and their consequences
Domain 3: Anatomy (10-15%)
Gross and regional anatomy as it applies to dissection and specimen orientation.
- Landmarks and relationships you need to orient and sample correctly
- Anatomic structures commonly encountered in surgical and autopsy work
- Head and neck anatomy, which pairs naturally with the head and neck systemic content
Domain 4: Autopsy Pathology (10-15%)
The procedural and legal-adjacent side of postmortem work.
- Evisceration and dissection techniques, and organ examination
- Specimen collection, documentation, and chain-of-custody awareness
- Safety and infection control considerations specific to postmortem work
Domain 5: Laboratory Operations (5-10%)
The smallest domain, but one that rewards candidates who skip it only at their peril.
- Safety, quality, and regulatory awareness; tested regulations draw on U.S. sources
- Specimen handling, labeling, and workflow
- Professional and ethical practice in the laboratory setting
The official ASCP reading list is a useful companion to these domains, but treat it as supplementary preparation, not as an exhaustive blueprint or a promise that questions come only from listed books. Your anchor remains the current content guideline.
Pass Rate Numbers in Context
ASCP's published 2025 data for this credential give a useful, if rounded, picture:
| Group | 2025 Pass Rate | Counts |
|---|---|---|
| Overall | 91% | 203 of 224 |
| First-time candidates | 92% | 195 of 213 |
| Repeat candidates | 73% | 8 of 11 |
Two cautions. First, these are national outcomes, not any one school's rate. Second, the repeat-candidate group is only 11 people, so that percentage is a small-sample figure and should not be over-interpreted. What the numbers do support is a practical conclusion: most first-time candidates from accredited programs pass, and passing the first time is the goal worth planning for. For more analysis, see PA(ASCP) Pass Rate 2026 and How Hard Is the PA(ASCP) Exam?
Test-Center Rules
This is a closed-book exam. Details to have settled before you arrive:
- Arrive 30 minutes early. Check-in includes biometric security.
- Bring matching photo and signature ID. The names must match your registration.
- Nothing personal at your desk. Personal notes and electronic devices are prohibited.
- Tools are provided. An onscreen calculator and writing materials are supplied by the test center.
Key Takeaway
Do a ID check at home a week early: compare the name on your ID to the name on your application. Resolving a mismatch on test day is far harder than fixing it beforehand, and your nonrefundable $550 is on the line.
Sequencing Your Review by Domain
A general study method matters less than allocating time in proportion to where the points are. Here is an example sequencing that reflects the published ranges. Adjust it to your timeline and weak areas.
Fundamentals of Pathology, first pass
- Cover organ systems in order, including head and neck
- Build a one-page summary per system
Anatomy and Anatomic Pathology Techniques
- Pair anatomy with the systems you just reviewed
- Walk through the specimen pathway from fixation to staining
Autopsy Pathology and Laboratory Operations
- Review postmortem procedure and documentation
- Cover safety, quality, and regulatory content
Timed practice and weak-spot repair
- Simulate the 2 hour 30 minute format
- Return to Fundamentals topics you missed
Fundamentals gets the longest block and a second look in the final week because it carries the most weight. For a fuller approach, see the PA(ASCP) Study Guide, and when you are ready to measure yourself, try the PA(ASCP) practice tests.
After You Pass: Credential Maintenance
Certification does not end at the exam. The Credential Maintenance Program runs on a three-year cycle and requires 60 points, distributed as follows:
| Category | Points |
|---|---|
| Advanced anatomic pathology / cancer specimen examination and staging | 15 |
| Anatomic pathology | 20 |
| Laboratory / patient safety | 1 |
| Medical ethics | 1 |
| Related interest | 23 |
The CMP fee is $110. If a credential expires, reinstatement adds $135. Continuing education must be earned within the cycle, followed by a declaration, and you should keep documentation in case of an audit. You may encounter older material citing a different point total; the current ASCP BOC maintenance page, which lists 60 points, is the authority to follow.
Looking at the career side? See PA(ASCP) Jobs, PA(ASCP) Salary Guide 2026, and Is the PA(ASCP) Certification Worth It?
Frequently Asked Questions
The exam has 100 total questions in 2 hours 30 minutes. It is a computer adaptive test that includes unscored field-test questions you cannot distinguish from scored ones, so the total should not be treated as 100 scored items.
The passing score is 400 on ASCP BOC's 100-999 scaled score range. It is a scaled score, not a raw 40% cutoff, so you cannot translate it directly into a number of correct answers.
Fundamentals of Pathology, which makes up 40-50% of the content and includes systemic pathology with head and neck in the current guideline. The other four domains range from 5-10% to 10-15% each.
No. The exam is closed-book, and personal notes and electronic devices are prohibited. An onscreen calculator and writing materials are supplied at the test center.
You must complete 60 Credential Maintenance Program points over a three-year cycle, pay the $110 CMP fee, declare your points, and keep documentation in case of audit. Reinstating an expired credential adds a $135 fee.