- What Does OK-CMA Actually Stand For?
- Who Governs and Administers the Exam
- Exam Format: 65 Questions, Two Hours, 70%
- The Six Content Domains
- Who Can Sit for the OK-CMA
- What a Basic CMA Can and Cannot Do
- Test-Day Rules and Logistics
- Renewal, Fees, and Continuing Education
- Building a Study Plan Around the Domains
- Who Hires OK-CMAs
- Frequently Asked Questions
- OK-CMA is the Oklahoma Certified Medication Aide Basic Written Examination, credential 8606/6A.
- The current exam is 65 multiple-choice questions, two hours, with a 70% passing score.
- Administer Medication is the largest domain at 41%, followed by Legal and Ethical Guidelines at 18%.
- Candidates get three written-test attempts, spaced at least three days apart, before retraining is required.
What Does OK-CMA Actually Stand For?
OK-CMA stands for the Oklahoma Certified Medication Aide (CMA) Basic Written Examination - the credentialing test that qualifies an already-certified nurse aide in Oklahoma to administer medications in long-term-care, home-health, or ICF/IID settings. It is a state-specific credential tied to Oklahoma's Nurse Aide Registry, and it is entirely separate from any similarly named credential you may find associated with other states or professional bodies. If you're researching this exam, everything on this site refers strictly to that Oklahoma basic assessment, identified in state documents as exam 8606/6A.
For a deeper breakdown of the terminology itself, see OK-CMA Meaning and What Does OK-CMA Stand For?. This article focuses on what the credential is, who administers it, and what candidates actually need to know to pass.
Who Governs and Administers the Exam
Two organizations share responsibility for the OK-CMA credential. The Oklahoma State Department of Health's Nurse Aide Registry is the governing body that oversees certification, eligibility, and disciplinary standing. The written assessment itself is delivered through the Oklahoma CareerTech Testing Center's Health and Professional Certification Project, administered at approved test sites.
This dual structure matters for candidates: your underlying nurse-aide certification status is tracked by the Health Department, but your test registration, scheduling, and score reporting run through CareerTech's approved testing network. If you're unclear on how these pieces fit together for your own timeline, the OK-CMA Requirements guide walks through eligibility step by step, and OK-CMA Exam Dates covers scheduling mechanics in more detail.
Exam Format: 65 Questions, Two Hours, 70%
The current operational specification for the OK-CMA basic written exam is straightforward:
- 65 multiple-choice questions
- Two hours of testing time
- 70% passing score
This specification comes from the operational testing table effective July 1, 2025 and edited January 7, 2026, and it matches the currently linked official study guide (revised January 1, 2017). There is a conflicting 70-question figure that appears in an older July 2025 coordinator manual, but the 65-question table is the authoritative, current specification candidates should prepare against.
Key Takeaway
Trust the 65-question, two-hour, 70%-passing specification. If you see a source citing 70 questions, it's referencing an outdated manual, not the current test blueprint.
Testing is computer-based, but that does not mean remote or at-home testing - every OK-CMA exam is proctored in person at an approved test site. For a full discussion of exactly what "passing" requires and how the score is calculated, see OK-CMA Passing Score.
The Six Content Domains
The written exam is built from six content domains, each with a published weight and an official question count. Understanding both numbers helps you calibrate how much time to spend studying each area.
| Domain | Weight | Approx. Questions |
|---|---|---|
| Administer Medication | 41% | 27 |
| Legal and Ethical Guidelines | 18% | 9 |
| Body Systems and Common Diseases | 11% | 12 |
| Observe, Report, and Document Client Status | 14% | 5 |
| Principles of Safety | 8% | 5 |
| Measurement Systems | 8% | 7 |
Note that the rounded percentages and the official question counts don't line up in a perfectly proportional way for every domain - that's expected, since the percentages are the study guide's published rounded weights while the question counts are the exam blueprint's actual totals. Either way, two domains dominate: Administer Medication and Legal and Ethical Guidelines together account for well over half the exam.
Domain 1: Administer Medication (41%)
This is the heart of the exam. Candidates must know the seven medication rights, correct administration routes and techniques, dosage calculation basics, and how to respond when something doesn't match the physician's order.
- Right client, right medication, right dose, right route, right time, right documentation, right to refuse
- Recognizing when a medication order requires licensed-nurse review before administration
- PRN medication administration through Oklahoma's licensed-nurse assessment or authorization process
Domain 3: Comply with Legal and Ethical Guidelines (18%)
The second-largest domain covers scope of practice, resident rights, confidentiality, and the legal boundaries of what a basic CMA is authorized to do versus what requires a licensed nurse.
- Understanding the limits of basic CMA authority
- Documentation as a legal record
- Reporting obligations and chain of accountability
The remaining four domains - Observe, Report, and Document Client Status; Principles of Safety; Measurement Systems; and Body Systems and Common Diseases - round out the blueprint. For a domain-by-domain breakdown with study strategies for each, see the OK-CMA Exam Domains Guide.
Who Can Sit for the OK-CMA
You can't walk into the OK-CMA exam cold. Oklahoma requires candidates to meet several prerequisites before they're eligible to test:
- Age 18 or older
- A high school diploma or GED
- Demonstrated English ability
- An active, qualifying Oklahoma nurse-aide certification in good standing (long-term-care, home-health, or ICF/IID)
- At least six months of nurse-aide experience
- Completion of approved training: at least 40 hours total, including at least 16 hours of supervised practical training
After training, candidates must also complete post-training competency verification - administering medications to 20 consecutive individuals with 100% accuracy. This is completed in addition to course clinical training; it is not a separate CareerTech skills-test station. Full detail on each of these requirements, including how the six-month experience clock works, is covered in OK-CMA Requirements and OK-CMA Training.
What a Basic CMA Can and Cannot Do
One of the most commonly misunderstood parts of this credential is scope of practice. The basic OK-CMA authorizes routine medication administration within the domains tested on the exam - but it does not automatically authorize everything a medication aide might encounter in a facility.
Advanced tasks such as insulin administration and glucose monitoring, feeding-tube medication administration, and inhaler/nebulizer administration fall under separate advanced medication-aide endorsement pathways, not the basic certification covered here. A basic CMA who hasn't completed the relevant advanced endorsement should not perform these tasks independently.
PRN (as-needed) medications are another area candidates often get wrong. Rather than assuming PRN administration is prohibited outright, understand that Oklahoma requires PRN administration to go through a licensed nurse's assessment or authorization process - the CMA doesn't independently decide to give a PRN medication without that nursing oversight. Expect exam questions that test this distinction directly.
Test-Day Rules and Logistics
The OK-CMA written exam has strict administrative rules that candidates should internalize well before test day:
- Testing is conducted in English only - no oral readers or translated exam versions are permitted
- The exam is closed-book, and calculators are prohibited
- Scratch paper is supplied by the proctor and must be returned before you leave
- Testing happens at an approved, proctored site - computer-based delivery does not mean you can test remotely or from home
Because calculators aren't allowed, candidates need to be comfortable with basic measurement conversions and dosage math by hand - a topic covered in the Measurement Systems domain. Practicing this arithmetic without a calculator ahead of time avoids a nasty surprise on test day.
Renewal, Fees, and Continuing Education
Certification isn't a one-time event. CMA status renews annually, and maintaining it requires:
- A $10 renewal fee each year
- Eight hours of approved continuing education per 12-month period (waived for the first certification year)
- Keeping the underlying qualifying nurse-aide certification active
Letting your nurse-aide certification lapse jeopardizes your CMA status even if your continuing education hours are current, since the CMA credential is built on top of that underlying nurse-aide standing. A detailed cost breakdown, including how renewal fees factor into the total cost of maintaining this credential over time, is available in OK-CMA Certification Cost.
Building a Study Plan Around the Domains
Because Administer Medication and Legal and Ethical Guidelines together make up 59% of the published weighting, a sensible study plan front-loads those two domains rather than spreading effort evenly across all six.
Administer Medication
- Master the seven medication rights and administration routes
- Work through PRN authorization scenarios
- Drill dosage math without a calculator
Legal and Ethical Guidelines + Documentation
- Study scope-of-practice boundaries
- Practice charting scenarios from the Observe, Report, and Document domain
Safety, Measurement, and Body Systems
- Review unit conversions
- Connect common diseases to medication considerations
- Take full-length timed practice runs
This isn't a generic weekly template - it's sequenced specifically around the OK-CMA's published domain weights, so the heaviest-tested material gets the most repetition. For a more exhaustive walkthrough of study techniques mapped to each domain, see the OK-CMA Study Guide, and if you want a sense of how challenging candidates generally find the material, How Hard Is the OK-CMA Exam? breaks that down further. You can also review OK-CMA Pass Rate for context on exam outcomes.
Timed practice testing on our practice test platform is one of the most efficient ways to get comfortable with the 65-question, two-hour format before you sit for the real exam, since simulating the pacing removes a major source of test-day anxiety.
Who Hires OK-CMAs
The basic CMA credential is designed for nurse aides working in Oklahoma's long-term-care facilities, home-health agencies, and ICF/IID (intermediate care facilities for individuals with intellectual disabilities) settings - the same three practice settings referenced in the eligibility requirements. Employers in these settings value the credential because it expands what a certified nurse aide is legally permitted to do, moving them into a medication-administration role without requiring a nursing license.
If you're weighing whether pursuing this credential makes sense for your career path, Is the OK-CMA Certification Worth It? and OK-CMA Salary Guide explore that question further, and OK-CMA Jobs looks at where the demand for this credential tends to concentrate.
Frequently Asked Questions
This site covers the Oklahoma Certified Medication Aide (CMA) Basic Written Examination exclusively, governed by the Oklahoma State Department of Health's Nurse Aide Registry and administered through Oklahoma CareerTech. Other credentials elsewhere may share the OK-CMA abbreviation, but they are not the same exam.
The current operational specification, effective July 1, 2025 and edited January 7, 2026, lists 65 multiple-choice questions with a two-hour time limit and a 70% passing score. This matches the currently linked official study guide.
No. Computer-based delivery refers to how the test is administered, not where. All OK-CMA testing takes place at proctored, approved test sites.
Newly trained candidates receive three written-test attempts, with a required minimum of three days between attempts. After a third failed attempt, the candidate must repeat approved training before attempting the exam again.
No. Those tasks, along with inhaler/nebulizer administration, fall under separate advanced medication-aide endorsement pathways that build on top of the basic CMA certification, not the basic written exam covered here.