The CMA (AAMA) Certification Exam, run by the Certifying Board of the American Association of Medical Assistants, is a 200-question computerized test with 180 scored items, 160 minutes of test time, and a passing score of 405 on a 200–800 scale. For exams before July 2027, the content outline divides into three weighted domains: Clinical Competency (59%), General (21%), and Administrative (20%). This guide maps each domain to its outline sections, works through a dosage calculation and a documentation item, and finishes with a study order and the items you must confirm with the AAMA directly.
What the CMA (AAMA) exam is and who runs it
The CMA (AAMA) credential is granted by the Certifying Board of the American Association of Medical Assistants after you pass a 200-question computerized exam covering clinical, general, and administrative medical assisting work.
The credential stands for Certified Medical Assistant (AAMA), and the exam tests the full scope of medical assisting duties as defined by the Certifying Board's occupational analysis. The certification program is accredited by the National Commission for Certifying Agencies (NCCA), the accrediting body of the Institute for Credentialing Excellence.
Keep the name straight: CMA (AAMA) is one specific credential from one issuer. Other organizations offer separate medical assisting certifications with their own outlines and rules, so study from the issuing body's materials for the credential you are actually pursuing.
For scale, the AAMA reported 4,171 exams administered from July 2024 to April 2025, with a 69% first-time pass rate. Treat that as context about the candidate pool, not a prediction of your own result.
| Domain | Outline sections | Scored questions | Percent |
|---|---|---|---|
| Clinical Competency | I.A–I.D: patient intake and discharge, safety and infection control, procedures and examinations, pharmacology | 106 | 59% |
| General | II.E–II.F: legal and ethical issues, communication | 38 | 21% |
| Administrative | III.G–III.H: billing, coding, and insurance; scheduling and health information management | 36 | 20% |
| Total | — | 180 scored (20 pretested of 200 administered) | 100% |
Official sources: AAMA CMA examination content outline effective through June 2027 — Content Outline for the CMA (AAMA) Certification Exam, Certifying Board of the American Association of Medical Assistants; Certification — AAMA certification page: exam format, scoring, retakes, IV microcredential, and CSMA FAQs
Format, scoring, and retakes
You get 200 multiple-choice questions, of which 180 are scored and 20 are pretested, delivered in four 40-minute segments with 160 minutes of test time inside a 180-minute appointment. You need a scaled score of 405 to pass.
Before the questions begin, an optional tutorial of up to five minutes shows you how to navigate the exam; that time does not count against you. The exam then runs in four 40-minute segments separated by three optional breaks totaling 20 minutes. Declining the tutorial or breaks does not extend your test time.
Scores are standardized on a scale from 200 to 800, and the Certifying Board sets the minimum passing score, currently 405. You see an official pass/fail result immediately at the end of the exam, and an emailed score report arrives roughly 24 hours later.
If you do not pass, you can reapply and pay the regular fee right away: there is no required waiting period between attempts, but you may take the exam at most six times within any 12-month period starting from your first attempt. Each attempt needs a new application and fee.
Official sources: Certification — AAMA certification page: exam format, scoring, retakes, IV microcredential, and CSMA FAQs
Which content outline applies to your exam date
The Certifying Board revised the content outline after its 2025 occupational analysis. If your exam date is before July 2027, prepare from the previously published outline; for exams on or after July 2027, switch to the updated outline.
The version used throughout this guide is the outline effective through June 2027, which is the correct preparation map for any exam date before July 2027. The revised outline reflects the findings of the AAMA's 2025 Occupational Analysis, so the weighting and some topic detail will differ.
Check your expected exam date before you build a study plan. If you are within a few months of testing, the current outline applies; if you plan to test after June 2027, download the updated outline from the AAMA and re-map your plan to it, because the domain structure described here may have changed.
Official sources: AAMA CMA examination content outline effective through June 2027 — Content Outline for the CMA (AAMA) Certification Exam, Certifying Board of the American Association of Medical Assistants; Certification — AAMA certification page: exam format, scoring, retakes, IV microcredential, and CSMA FAQs
Clinical competency: the largest domain
Clinical Competency carries 106 of the 180 scored questions, so it deserves the largest share of your study time. The outline groups it into patient intake and discharge, safety and infection control, procedures and examinations, and pharmacology.
Patient intake and discharge covers vital sign techniques for blood pressure, pulse, temperature, respiration, and pulse oximetry, plus pediatric measurements and growth charts. It also includes medical terminology, interviewing techniques, patient screenings such as cancer and depression screening, nutrition, and processing provider orders like diabetic teaching and home-monitoring instructions.
Safety and infection control runs from infectious agents and the chain of infection through standard precautions, personal protective equipment, hand hygiene, sharps safety, medical asepsis and sterilization, biohazard disposal, and emergency procedures including basic first aid responses. Procedures and examinations spans patient positioning, surgical assisting, wound care, specimen collection including venipuncture, laboratory tests, and diagnostic procedures such as electrocardiography, pulmonary function tests, and vision and hearing screens.
Pharmacology covers drug classes, actions, adverse reactions, and contraindications; storage and inventory; the rights of medication administration; dosage calculation with metric conversion; and routes from oral through injection sites, with medication documentation and immunization records. Because calculation is arithmetic you can rehearse exactly, it is one of the highest-yield skills in the domain — the exercise below shows the pattern.
Practice exercise
A provider orders 375 mg of an antibiotic suspension by mouth. The label reads 250 mg per 5 mL. How many mL do you measure? (Assumptions for a unique answer: the order and label are exactly as stated, the suspension is uniform, and no substitution is permitted.)
Show answer
7.5 mL.
Set up the ratio from the label: 250 mg per 5 mL means 50 mg per mL. The required amount is (375 ÷ 250) × 5 = 7.5 mL. Two pitfalls worth naming: rounding 7.5 up to 8 mL for convenience changes the delivered dose, and inverting the ratio to 5 mL per 250 mg produces a nonsense answer. After computing, check the result against the order — 7.5 mL at 50 mg/mL delivers 375 mg, so the arithmetic closes. The outline lists dosage calculation and the rights of medication administration as tested pharmacology topics, so practice until the ratio-direction check is automatic.
- I.A Clinical Workflow: Patient Intake and Discharge — vital signs, screenings, terminology, provider orders
- I.B Safety and Infection Control — precautions, asepsis, biohazards, emergency management
- I.C Procedures/Examinations — positioning, surgical assisting, specimen collection, lab and diagnostic tests
- I.D Pharmacology — drug knowledge, dosage calculation, administration routes, documentation
General domain: legal, ethical, and communication topics
The General domain holds 38 scored questions across two sections: Legal and Ethical Issues, and Communication. Expect scenario items about privacy, consent, documentation, and adapting your communication to the patient.
The legal and ethical section is built around the Health Insurance Portability and Accountability Act (HIPAA), protected health information and release-of-information rules, consent in its informed, implied, and exception forms, and advance directives such as living wills and medical durable power of attorney. It also covers federal and state regulations including professional liability torts, mandatory reporting statutes, pharmaceutical laws, and immunization resources from the CDC such as Vaccine Information Statements.
The communication section tests therapeutic and adaptive responses: cultural diversity and bias awareness, barriers such as hearing or vision impairment and non-English-speaking patients, defense mechanisms, de-escalation, listening skills, learning styles, and health care team roles. Items in this domain are usually behavioral: given a situation, which response communicates accurately and respectfully while staying inside the role.
Do not memorize statute names in isolation. The outline pairs each legal topic with the assistant's behavior — maintaining confidentiality verbally and in writing, documenting care with subjective and objective data, making addenda and corrections — so study each rule as an action you would take.
Administrative domain: billing, coding, and scheduling
The Administrative domain carries 36 scored questions covering billing, coding, and insurance in one section, and scheduling appointments and health information management in the other.
Coding applications include Current Procedural Terminology (CPT) with modifiers, International Classification of Diseases Clinical Modification (ICD-CM) diagnostic coding, and Healthcare Common Procedure Coding System (HCPCS) Level II, along with linking procedure and diagnosis codes to medical necessity. The section also names insurance fraud and abuse concepts such as upcoding, downcoding, and bundling.
Insurance and finance topics run from eligibility verification, insurance types including Medicare, Medicaid, TRICARE, and managed care, through precertification and prior authorization, the Advance Beneficiary Notice, and financial terminology such as deductible and accounts receivable. Patient account procedures cover posting charges, payments, adjustments, and end-of-day reconciliation.
The scheduling section includes new and established patient visits, routine versus urgent sequencing, cancellations and no-shows, reception and registration with identity protection, electronic health record tasks such as patient portals and organizing medical reports, and telephone etiquette with message protocols. These items reward clean procedural knowledge rather than judgment calls, so flashcard-style drilling works well here.
Reading stems and practicing documentation
Scenario items reward disciplined reading: find the final question first, identify whose action is requested, then match options to the facts the stem actually states. Documentation items reward short, factual, timestamped entries.
Use two passes. On the first, answer the question from the stem alone; on the second, check each surviving option against the stem's stated facts. Guard against over-answering: if the vignette never mentions an allergy or a splash exposure, an option assuming one is not better. Options describing the provider's decision do not answer a question about the assistant's action, and a question asking what to do 'first' rules out answers that skip reporting or documentation.
Documentation items follow the outline's structure for recording care: the chief concern, subjective data from the patient, objective examination findings, and corrected entries made properly. A strong entry records what the patient said in their own words, what you observed, times, and any notification — and omits judgments or advice that are not yours to give. Try the exercise below before moving on.
Practice exercise
While rooming a patient for a scheduled follow-up, she tells you, "I've had a dull headache since I woke up this morning." Blood pressure and temperature are within the ranges you normally record for her. Which chart entry is best? (Assumptions: your office protocol routes any patient-reported symptom to the provider, and the visit has not yet begun.) A) "Headache — likely tension, no action needed." B) "Patient states: 'I've had a dull headache since I woke up this morning.' Reported to provider per protocol at 9:15 a.m." C) "Headache resolved. Denies complaints." D) "Headache since morning; advised patient it is probably nothing."
Show answer
B.
Option B records the symptom as subjective data in the patient's exact words, which is how the outline frames patient-reported information, and it documents that the report reached the provider with a time. Option A invents a diagnosis the stem never supports — nothing here establishes a cause. Option C contradicts the stem, since the patient did report a symptom. Option D records advice about a symptom, which is a clinical judgment outside the assistant's documentation role. The tested skill is separating subjective patient reports from your own conclusions and documenting both the report and its routing.
A study order that follows the weights
Editorial advice: roughly match your study time to the question weights — the most time on clinical content, then general, then administrative — and put calculation and scenario practice into every week rather than saving them for the end.
A workable sequence: first, download the outline for your exam date and mark every topic where you feel rusty, producing an honest gap list. Second, work the clinical sections in outline order, drilling dosage calculations and specimen collection details daily because they are precise and easy to test. Third, study the legal, ethical, and communication material through scenarios, since those items are behavioral. Fourth, drill the administrative lists and terminology.
In the final stretch, shift from topic review to mixed practice under time pressure. Review every wrong answer by naming the outline topic it tested and the specific reason your choice failed — misread ratio, invented stem fact, wrong subject — rather than just rereading the right answer. Adapt the pacing to your calendar; shrinking a phase beats skipping the mixed-practice weeks.
This sequencing is preparation strategy from this guide, not an AAMA requirement, and no study plan guarantees a score. Paper practice also cannot establish hands-on competence; the exam tests knowledge, and your program's training covers the rest.
Related credentials and where the CMA (AAMA) fits
The CMA (AAMA) remains the AAMA's flagship credential. Two related offerings exist: an IV add-on microcredential open only to current CMAs (AAMA), and the narrower Clinical Support Medical Assistant (CSMA) credential for completers of short medical assisting programs.
The IV microcredential is not a second certification. A current CMA (AAMA) completes a Certifying Board–approved course in IV initiation and discontinuation, submits the completion certificate with a nominal application fee, and may then use the designation "CMA (AAMA), I.V." The add-on stays valid only while the underlying CMA (AAMA) credential is active, and it requires no exam. State law matters here: roughly 8 states permit medical assistants to initiate and discontinue IVs, about 10 forbid it, and the rest are silent.
The CSMA credential was created alongside the federal Workforce Pell Grant Program for much shorter programs — roughly 150 to 599 clock hours over at least 8 but fewer than 15 weeks. The AAMA describes it as much more limited in breadth, depth, and rigor than the CMA (AAMA), and students and graduates of CAAHEP- or ABHES-accredited programs are not eligible for it; they remain eligible for the CMA (AAMA) exam under current requirements.
If your goal is the full-scope credential from an NCCA-accredited program, the CMA (AAMA) is the certification described in this guide. Check the AAMA site for the CSMA content outline and any newer developments before choosing a program.
Official sources: Certification — AAMA certification page: exam format, scoring, retakes, IV microcredential, and CSMA FAQs
Final checklist and official documents
Before test day, confirm four things against the AAMA's own pages: your eligibility route, the correct content outline for your exam date, your application and fee status, and your test accommodations if needed.
The two documents that anchor this guide are the Content Outline for the CMA (AAMA) Certification Exam effective through June 2027 and the AAMA's certification page, which carries the format, scoring, and retake policies summarized above. Both come from the American Association of Medical Assistants.
Some administrative details were outside the sources retrieved for this guide, so verify them directly: current exam and application fees, the specific eligibility route that applies to you, and recertification requirements once certified. Eligibility, fees, and policies change over time, and secondhand summaries — including this one — should not be your final word on them.
Practical last steps: create your account and confirm a personal email address you will still have access to next year, whitelist the AAMA and PSI testing addresses so score reports reach you, and if you need accommodations, complete enrollment first and then submit the request with documentation through PSI's process.
- Confirm your eligibility route and application status on the AAMA certification pages
- Study from the content outline matching your exam date (through June 2027 vs. on or after July 2027)
- Verify current fees with the AAMA before paying
- Complete enrollment before requesting test accommodations through PSI
- Plan recertification only after checking the AAMA's current requirements
Official sources: Certification — AAMA certification page: exam format, scoring, retakes, IV microcredential, and CSMA FAQs
Official sources
Facts checked against AAMA sources: