- The OK-CMA Basic Written Examination requires a 70% passing score on 65 multiple-choice questions.
- You need approximately 46 correct answers out of 65 to clear the 70% threshold.
- Administer Medication carries 27 questions (41%); missing too many here is the fastest way to fail.
- Newly trained candidates get three attempts, spaced at least three days apart, before repeating full training.
The OK-CMA Passing Score, Explained
If you're preparing for the Oklahoma Certified Medication Aide (CMA) Basic Written Examination, the number that matters most is simple to state and harder to guarantee: 70%. That's the passing score set for the exam administered through the Oklahoma CareerTech Testing Center's Health and Professional Certification Project, on behalf of the Oklahoma State Department of Health Nurse Aide Registry.
The current operational testing table, effective July 1, 2025 and last edited January 7, 2026, confirms the exam consists of 65 multiple-choice questions administered in a two-hour testing window. This matches the currently linked study guide (revised January 1, 2017). Note that an earlier July 2025 coordinator manual referenced a 70-question exam - that figure is outdated and superseded by the operational testing table, so don't let it confuse your prep.
How the Raw Score Math Actually Works
A 70% passing score on a 65-question exam translates to roughly 46 correct answers (70% of 65 rounds to about 45.5, which functions as 46 correct in practice for a passing outcome). That means you have roughly 19 questions of margin - but that margin isn't evenly distributed across the exam. Because Administer Medication alone accounts for 27 of the 65 questions, a candidate who struggles specifically with medication administration content can burn through that entire margin in a single domain.
This is why treating the OK-CMA exam as "get 70% of anything right" is the wrong mental model. You need to think in terms of domain-level accuracy, not just an overall percentage. A candidate who scores 90% on the smaller domains but only 55% on Administer Medication can still fail the exam overall, because that one domain is nearly half the test.
Key Takeaway
Don't just aim for "70% overall" - aim for strong accuracy specifically in Administer Medication and Legal and Ethical Guidelines, since together they make up 59% of your score.
Domain-by-Domain Question Counts
The study guide's published weights are rounded percentages, but the official domain question counts give you the exact number of items per section. Use these numbers, not just the percentages, when you're deciding how much time to spend on each content area. For a full walkthrough of what's tested inside each domain, see the OK-CMA Exam Domains 2026: Complete Guide to All 6 Content Areas.
| Domain | Weight | Question Count |
|---|---|---|
| Administer Medication | 41% | 27 |
| Comply with Legal and Ethical Guidelines | 18% | 9 |
| Observe, Report, and Document Client Status | 14% | 12 |
| Apply Knowledge of Body Systems and Common Diseases | 11% | 7 |
| Apply Principles of Safety | 8% | 5 |
| Apply Knowledge of Measurement Systems | 8% | 5 |
Notice that Observe, Report, and Document Client Status is weighted at 14% but carries 12 questions - proportionally more than its percentage might suggest relative to some other domains. Meanwhile Legal and Ethical Guidelines sits at 18% with only 9 questions, meaning each question there carries slightly more per-item weight. This is exactly the kind of nuance a generic "study everything equally" approach misses.
Administer Medication (27 questions)
This is the domain that decides most pass/fail outcomes. Candidates must know the seven medication rights, correct administration techniques, and the boundaries between basic CMA scope and advanced pathways.
- The seven rights: right client, medication, dose, route, time, documentation, and reason
- Distinguishing basic CMA authority from advanced insulin/glucose-monitoring, feeding-tube, and inhaler/nebulizer endorsement pathways
- PRN administration through Oklahoma's licensed-nurse assessment or authorization requirements
Comply with Legal and Ethical Guidelines (9 questions)
Fewer questions, but high stakes per item. Expect scenario-based items on scope of practice, documentation legality, and reporting obligations tied to Oklahoma's nurse-aide framework.
- What falls inside vs. outside basic CMA scope
- Confidentiality and resident-rights scenarios
- Consequences of practicing outside authorized medication duties
Why 70% Isn't the Same as "Easy 70%"
Some candidates hear "70% to pass" and assume that's a low bar. In practice, the closed-book, no-calculator, no-translated-exam format removes several crutches candidates might rely on in other testing environments. You can't use an oral reader, a translated version of the exam, or a calculator during the OK-CMA Basic Written Examination - it is administered in English only, closed-book, at an approved test site.
That means measurement conversions (an entire domain worth 8% / 5 questions) must be done mentally or with proctor-supplied scratch paper, which must be returned at the end of the session. If you haven't internalized basic dosage and measurement conversions before test day, you're spending precious minutes doing arithmetic you should already know cold.
For a deeper look at what makes this exam genuinely challenging versus what's manageable with the right prep, read How Hard Is the OK-CMA Exam? Complete Difficulty Guide 2026.
Format Mechanics That Affect Your Score
A few structural details of the OK-CMA exam directly influence how you should pace yourself and where points are won or lost:
- Two-hour time limit for 65 questions - this works out to roughly 1.8 minutes per question on average, generous enough that rushing shouldn't be your default failure mode, but tight enough that getting stuck on one hard item can cascade.
- Closed-book, no calculator - every measurement conversion and dosage calculation must be done by hand or mentally.
- Proctor-supplied scratch paper only - and it must be returned, so don't count on keeping notes for later review.
- English-only administration - no oral readers or translated versions are permitted under current rules.
These mechanics matter because they shape how you should practice. If you've only ever answered practice questions on a phone with unlimited time, you haven't simulated the actual constraint set you'll face. Practicing under timed, closed-book conditions using resources like our OK-CMA practice test platform gets you used to the real pacing before test day.
What Happens If You Miss the Cutoff
Missing the 70% passing score is not the end of the road, but it does come with structure. Newly trained candidates are allowed three written-test attempts, with a required minimum of three days between attempts. If a candidate fails a third time, Oklahoma rules require repeating the approved training program - which includes at least 40 hours total, with at least 16 hours of supervised practical training - before testing again.
This retake structure is one more reason the domain-weighted study approach matters more than generic review. If your first attempt reveals you missed most of your points in Administer Medication or Legal and Ethical Guidelines, your second attempt prep should be laser-focused on those two domains rather than spread evenly across all six.
Key Takeaway
Use your first attempt's weak areas (if applicable) to reallocate your remaining study days toward Administer Medication and Legal and Ethical Guidelines before attempt two.
For the full eligibility picture - age, training hours, and the required nurse-aide certification in good standing - see OK-CMA Requirements 2026: Eligibility, Prerequisites & How to Qualify.
A Domain-Weighted Prep Timeline
Rather than a generic study calendar, allocate your prep time in proportion to the exam's actual weighting. If you have roughly four weeks before your scheduled test date, here's how the math should influence your schedule:
Administer Medication (41% / 27 questions)
- Master the seven medication rights and administration routes
- Study PRN administration rules under Oklahoma's licensed-nurse authorization requirements
- Learn the line between basic CMA scope and advanced insulin, feeding-tube, and inhaler/nebulizer pathways
Legal/Ethical (18%) and Observation/Documentation (14%)
- Review scope-of-practice scenarios and reporting obligations
- Practice documentation language and what must be reported to a licensed nurse
Body Systems (11%), Safety (8%), Measurement (8%)
- Drill unit conversions without a calculator, since none is permitted on test day
- Review common disease processes tied to medication administration
- Cover fall prevention and infection-control safety principles
Full Simulation and Weak-Spot Repair
- Take timed, closed-book practice exams under two-hour conditions
- Re-drill any domain scoring below 70% individually
- Confirm your certification and testing paperwork ahead of exam day
This kind of proportional scheduling is covered in more depth, alongside sample question styles, in OK-CMA Study Guide 2026: How to Pass on Your First Attempt. If you want a condensed, single-page reference to keep nearby during your final review days, the OK-CMA Cheat Sheet 2026: One-Page Review of Must-Know Facts distills the highest-yield facts by domain.
Frequently Asked Questions
You need a 70% passing score on the 65-question multiple-choice exam, which works out to approximately 46 correct answers.
It is 65 questions. The operational testing table effective July 1, 2025 and edited January 7, 2026 confirms 65 questions, matching the currently linked study guide. A conflicting 70-question figure appears in an outdated July 2025 coordinator manual and should be disregarded.
Administer Medication, which accounts for 27 of 65 questions (41%), followed by Comply with Legal and Ethical Guidelines at 9 questions (18%). Together these two domains make up nearly 60% of your total score.
No. The exam is closed-book and administered in English only; oral readers, translated exams, and calculators are all prohibited under current testing rules.
Newly trained candidates get three attempts total, with at least three days required between attempts. After a third failed attempt, you must repeat the approved training program before testing again.
Understanding the exact passing score is only half the picture - pairing it with a clear sense of question difficulty, domain weighting, and realistic timing is what actually moves your score above 70% on test day. For broader context on how this all fits into your certification and career path, explore OK-CMA Certification and OK-CMA Jobs.