CNM
Certified Nurse-Midwife (CNM) Certification Examination
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ExploreAbout this exam
The Certified Nurse-Midwife (CNM) credential is awarded by the American Midwifery Certification Board (AMCB) to graduates of ACME-accredited nurse-midwifery programs who meet eligibility requirements and pass the national certification examination. AMCB describes the program's purpose as setting a national standard for midwifery and protecting the public by ensuring certified individuals meet pre-determined criteria for safe advanced practice. The examination targets the cognitive knowledge of a beginning advanced practice midwife, covering normal and abnormal findings, physical examination, laboratory values, physiology, pharmacology, and clinical decision making across clinical areas. It is computer-based, contains 175 multiple-choice items, and allows four hours for completion, with review and answer changes permitted during that time. Content areas and their percentages are set by the most recent Task Analysis completed by AMCB's Research Committee. Preparation should be active and broad: use the current content outline to organize study, integrate pharmacology and laboratory interpretation into clinical scenarios, and practice full-length timed sets. This page is an independent study resource and is not affiliated with AMCB.
What you'll study
About CNM preparation
What is the exam format?
The CNM certification examination is delivered by computer at PSI testing centers. It contains 175 multiple-choice items, and candidates have four hours to complete it. You may review and change previously answered items within that allotted time. Computer-based testing provides immediate official results at the testing site. A brief computer tutorial and an on-screen clock are provided.
Am I eligible to take the CNM examination?
Candidates must be successful graduates of an ACME-accredited nurse-midwifery or midwifery educational program and hold a graduate degree. CNM candidates must also have an active RN license. Since January 1, 2011, a graduate degree has been required for eligibility, including for certificants who allowed their certification to lapse.
How is the passing standard set?
AMCB uses a criterion-referenced cut-score method. The Pass-Point Subcommittee sets the passing score for the base form with facilitation by test consultants. A standard-setting study was performed on the base form in October 2022 using an Angoff-based method. The source does not publish a numeric passing score or a percent-correct cut-off.
Can I review or change answers during the exam?
Yes. During computer-based testing, you can review and change previously answered items as desired within the four-hour examination time. The screen shows a clock with remaining testing time throughout the exam. You also receive a short orientation and tutorial before starting.
What content does the exam cover?
The exam assesses cognitive knowledge expected of a beginning advanced practice midwife, including normal and abnormal physical examination findings, laboratory values, physiology, pharmacology, and clinical decision making. Knowledge and judgment for both normal and deviations from normal are tested in all clinical areas. Content areas and their percentages are determined by the most recent Task Analysis completed by the Research Committee.
Where and when can I test?
AMCB offers computer-based testing through PSI Services, with more than 120 testing sites nationally. Each state, plus Puerto Rico and the District of Columbia, has at least one test center, and centers are within a two-hour drive of the top 150 metropolitan areas. Sites are generally available five days per week, except holidays.
What happens if I fail?
Candidates who fail may request verification of results; the cost is set by the AMCB fee schedule. The source text does not state a retake policy, waiting period, or attempt limit. Check the current AMCB Candidate Handbook and fee schedule for those details before you register.
How difficult is the exam?
It is an entry-level examination, but it samples broadly across normal and abnormal care, requiring integration of physical findings, laboratory values, physiology, pharmacology, and clinical judgment. AMCB uses equivalent LOFT-generated forms, so memorizing one test version will not help. The source text does not provide a pass rate or difficulty rating.
How should I sequence my study?
Start with the current content outline based on the latest Task Analysis, then audit your weakest clinical areas. Build pharmacology and laboratory interpretation into case-based practice rather than studying them in isolation. Finish with full-length, four-hour timed sets of 175 multiple-choice items to practice pacing and answer review.
Are all candidates given the same questions?
No. AMCB uses Linear On The Fly Testing, which generates each exam form automatically. Every form must meet content and statistical requirements, so each candidate receives an equivalent form made of a unique combination of items from the available pool. Each item pool is used for 12 months.