CMSRN stands for Certified Medical-Surgical Registered Nurse, a specialty credential issued by the Medical-Surgical Nursing Certification Board (MSNCB). It validates that a registered nurse has advanced knowledge in medical-surgical nursing, the largest nursing specialty in the United States. Earning the credential signals expertise to employers and often opens doors to higher pay and leadership roles.
What the CMSRN Credential Covers
Medical-surgical nurses care for adult patients with a wide range of conditions, from post-operative recovery and chronic disease management to acute illness. The CMSRN certification tests knowledge across several domains: patient and care management, holistic patient care, interprofessional concepts, professional concepts, and nursing teamwork and collaboration. Because med-surg nurses encounter nearly every body system and diagnosis, the exam is broad rather than deep in a single specialty.
Eligibility Requirements
To sit for the CMSRN exam, you need an active, unrestricted RN license and documented clinical practice hours in a medical-surgical setting. MSNCB requires a minimum number of practice hours within a defined timeframe before your application. The exact thresholds are outlined in the official CMSRN Certification Handbook, which MSNCB recommends reviewing before applying since requirements can be updated between certification cycles.
Exam Format and Passing Score
The CMSRN exam consists of 150 multiple-choice questions, but only 125 of them count toward your score. The remaining 25 are unscored pilot questions used to develop future exams. You won’t know which questions are scored and which aren’t, so you need to treat every question seriously.
You get three hours to complete the exam. To pass, you need a standard score of 95, which translates to roughly 71% of the scored questions answered correctly. Your raw score (the number you actually got right out of 125) gets converted to a standard score so that results are comparable across different versions of the exam. The test is administered through Pearson VUE testing centers, and you can take a demo test on their site beforehand to get comfortable with the format.
Exam Fees
Cost depends on whether you’re a member of the Academy of Medical-Surgical Nurses (AMSN). As of 2026, the initial exam fee is $267 for AMSN members and $394 for non-members. Both prices include a non-refundable $79 processing fee. If you don’t pass on your first attempt, a discounted retake is available within one year: $189 for members and $315 for non-members. You must be an active AMSN member at the time you apply to qualify for the member rate.
How to Prepare
MSNCB and AMSN offer several official study resources, and using the exam blueprint as your starting framework is the most efficient approach. The blueprint breaks down exactly which topics appear on the exam and in what proportion, so you can focus your study time where it counts.
Beyond the blueprint, your main options include:
- Live Certification Review Course: A two-day, in-person course led by a CMSRN certification expert. It earns you 14 continuing education contact hours upon completion.
- Online Certification Review Course: A self-paced program with nine modules covering the most common diseases, symptoms, and patient issues in med-surg nursing. Each module includes practice questions and downloadable workbooks. Completing the full course earns 20.5 contact hours.
- CMSRN Practice Exam: A 150-question timed practice test aligned with the current exam blueprint. It mirrors the real exam’s three-hour time limit and covers all five domains. Completing it earns 3 contact hours.
MSNCB also publishes the list of references the exam was built from, which can guide you toward specific textbooks and clinical resources if you want to go deeper on weak areas. Keep in mind that no prep course guarantees a passing score. These resources are meant to supplement, not replace, your clinical knowledge and experience.
Career and Salary Benefits
Holding a CMSRN credential often translates directly into higher compensation. Many hospitals offer hourly pay differentials or one-time bonuses for certified nurses. The credential is also recognized in Magnet-designated hospitals, where a higher percentage of certified nurses on staff is part of the designation criteria. This means Magnet facilities actively encourage and sometimes financially support certification efforts.
Beyond pay, the CMSRN can strengthen your candidacy for charge nurse positions, clinical educator roles, and unit leadership opportunities. It signals to hiring managers that you’ve invested in your professional development beyond the baseline RN license, which is particularly valuable when competing for roles at high-acuity facilities.
Recertification Every Five Years
The CMSRN credential is valid for five years. To renew, you need to meet two requirements: at least 1,000 practice hours in a medical-surgical setting during that five-year period, and 90 verified continuing education contact hours. Of those 90 hours, at least 68 must be specifically designated as medical-surgical content. The remaining 22 can fall under general professional development topics.
You can also recertify by retaking the exam if you prefer that route over accumulating contact hours. Most nurses choose the contact hour pathway since continuing education is already part of routine professional development at most hospitals.
CMSRN vs. ANCC Medical-Surgical Certification
The CMSRN from MSNCB is not the only med-surg certification available. The American Nurses Credentialing Center (ANCC) offers a separate credential called MEDSURG-BC. Both exams use the same basic format: 150 questions, 125 scored, three-hour time limit. Both are nationally recognized.
The key difference is the issuing organization. MSNCB is the certification arm of AMSN, the professional organization dedicated specifically to medical-surgical nursing. ANCC is a subsidiary of the American Nurses Association and offers certifications across dozens of nursing specialties. In practice, most employers accept either credential equally. Your choice may come down to which organization’s membership benefits, review courses, and community appeal to you more. If you’re already an AMSN member, the discounted CMSRN exam fee makes that route the more cost-effective option.