CHRN Salary Guide 2026: Complete Earnings Analysis

What We Can and Cannot Say About CHRN Pay

Search for "CHRN salary" and you will find confident numbers floating around the internet. Be careful with them. The acronym CHRN is shared by several unrelated credentials, and salary pages routinely blend data across all of them. This guide is about one credential only: the Certified Hyperbaric Registered Nurse, overseen by the Baromedical Nurses Association Certification Board (BNACB) and administered and graded by the National Board of Diving and Hyperbaric Medicine Technology (NBDHMT).

Here is the honest position: we have no verified, CHRN-specific salary statistic from the certifying bodies or from any source we can stand behind, and we will not manufacture one. Neither the BNACB nor the NBDHMT publishes a salary survey in the materials reviewed for this article. What we can do is lay out everything that does determine what a hyperbaric nurse earns, quantify what the credential costs you in dollars and hours, and give you a framework for negotiating and for deciding whether the credential pays for itself in your situation.

What the Credential Actually Is

Before talking about pay, it helps to be precise about what you are paying for. The Certified Hyperbaric Registered Nurse credential recognizes registered nurses who have demonstrated knowledge of hyperbaric medicine and nursing practice in that environment. If you are new to the terminology, our explainers on what CHRN is and what CHRN stands for cover the basics.

Note that this is the basic CHRN certification. It is not ACHRN, not CHRNC, and not an administrative renewal pathway. Within hyperbaric documents, "CHT" refers to Certified Hyperbaric Technologist, the technician-level counterpart that often works alongside nurses in the chamber. That distinction matters for pay because facilities frequently staff chambers with both nurses and technologists, and compensation structures differ between the two roles.

The Eligibility Ladder Is Itself an Earnings Signal

The prerequisites tell you something about who holds this credential and why employers value it. Per the current-linked materials, a candidate needs:

• An unrestricted RN license
• Two years of hospital or clinic experience, or one year of critical care
• A recent active year in hyperbaric practice
• An approved 40-hour introductory course (or applicable 40 Category A replacement credits)
• 480 post-course patient-care hours
• Approval from a qualified preceptor
• An employer recommendation

That is a meaningful bar. It means certified nurses are not entry-level clinicians; they are experienced RNs who have already been working in hyperbaric settings under supervision. Employers often view certification as proof that a nurse can run treatments safely without constant oversight, which is the real driver of value. Our full breakdown of CHRN requirements walks through each prerequisite in order.

Who Hires Certified Hyperbaric Registered Nurses

Hyperbaric oxygen therapy is delivered in a limited set of settings, and the setting is one of the biggest variables in any nurse's compensation. Our overview of CHRN jobs goes deeper, but the main employer categories are:

• Hospital-based hyperbaric departments. Typically tied to wound care or emergency services, and often multiplace or monoplace chambers within a larger system whose pay scales and benefits apply.
• Outpatient wound care and hyperbaric centers. Many are operated by management companies that staff chambers with nurses, technologists, and a supervising physician.
• Dedicated hyperbaric medicine facilities. Smaller operations where a nurse may take on broader responsibilities, including scheduling, documentation, and chamber operations.
• Facilities handling emergency indications. Settings that treat decompression sickness or carbon monoxide poisoning may require on-call availability, which affects total compensation.

Because the exam content spans everything from chamber physics to nursing management of the patient, certified nurses are positioned to move between roles: bedside clinician, safety officer, program coordinator, or educator.

What Moves a Hyperbaric Nurse's Earnings

Without a published CHRN salary figure, the most useful thing we can offer is a map of the factors that shape pay. Use this to benchmark offers against local RN wage data rather than relying on a headline number.

The Cash Outlay: Fees You Can Verify

The cost side of the ledger is where we can be precise. The current-linked June 2026 initial application confirms three fee tiers based on membership status:

The application requires evidence of membership, and it asks you to register 30 days before the test. The older June 2024 manual lists US$100 for a repeat examination; no newer retake-fee override turned up in the retrieved initial application, so confirm the current retake fee with NBDHMT before you budget for a second attempt.

The nonmember premium over BNA membership is US$150, so if you were already considering joining the Baromedical Nurses Association, the membership math may favor joining first. Check current BNA dues before deciding, as we do not have a verified dues figure. For a consolidated view of every line item, see our complete CHRN certification cost breakdown.

The Costs the Application Doesn't Show

The exam fee is only part of the total. Candidates also need to account for:

• The approved 40-hour introductory course (or equivalent Category A credits), whose price varies by provider
• Travel to an approved testing site, since the exam is proctored and not a default home-testing experience
• Study materials and practice resources
• Any unpaid time off during the course or exam

Many employers cover some or all of these, which is why the reimbursement conversation above carries real weight.

Recurring Costs: Four-Year Renewal Mechanics

Certification is not a one-time purchase. The credential renews every four years, and the renewal requirements are demanding enough to affect your career planning. Per the August 2025 renewal form, you need:

• An active RN license
• 40 continuing education hours over the four-year cycle, including 20 Category A hours
• Employer or medical director confirmation of at least one year of hyperbaric experience, including 480 hours within the previous 12 months

A lapse adds US$100 and removes member discounts, so a nurse who lets certification expire pays both the penalty and the higher nonmember rate. That makes calendar discipline a genuine financial matter.

Skills That Make You Hard to Replace

Compensation follows demonstrated competence, and the CHRN exam content maps closely onto the skills that hyperbaric employers say they need. The exam spans sixteen content areas, laid out in our complete guide to all 16 CHRN content areas. A few clusters stand out for their on-the-job value.

Safety lapses in a hyperbaric chamber are among the highest-consequence events in healthcare, which is why a nurse who can demonstrate command of this material is valuable to risk-averse employers.

TcPO2 competence in particular is a practical skill that facilities with wound care programs rely on, and demonstrating it can broaden the roles you are considered for.

A Practical ROI Framework

Since we cannot give you a salary premium figure, here is a way to evaluate the credential using numbers you can gather yourself.

1. Total your known costs. Add the exam fee for your membership tier, the introductory course, study materials, travel, and any lost wages. Then add your expected renewal cost over the four-year cycle, including CE expenses.
2. Ask your employer three questions. Do you reimburse certification costs? Is there a pay differential or career-ladder step tied to the credential? Is certification required for the role you want?
3. Compare against local job postings. Look at hyperbaric nursing postings in your region and note which list certification as required, preferred, or absent. Postings are a better local signal than any national average.
4. Weigh the non-salary benefits. Job security, mobility between facilities, and eligibility for lead or coordinator roles can matter as much as an hourly differential.

If your employer already pays for the course and exam, the credential's return is largely a matter of how it positions you for advancement. If you are self-funding, the calculation is tighter and local postings matter more. Our CHRN salary guide is kept current as new verifiable data becomes available.

Protecting Your Investment on Exam Day

The cheapest exam attempt is the one you pass the first time. The exam consists of 120 multiple-choice and true/false items, with a two-hour limit and a 70% passing threshold. It contains no essays or short-answer questions. Supplemental dive tables are provided, and a pocket calculator is allowed. Testing occurs at a designated testing site, and any in-house proctorship requires NBDHMT approval. The scored versus unscored item split is not published in our source material, so we do not claim one.

A credential-specific pass rate is not publicly disclosed. A historical combined-program figure of 74% exists but is not CHRN-specific, so do not use it to gauge your odds. Our pages on the CHRN pass rate, the passing score, and how hard the exam is explain what is and is not known. For scheduling, see CHRN exam dates and deadlines.

Where Candidates Lose Points

The exam's physics and decompression content catches many clinically strong nurses off guard because it requires calculation. Be ready to:

• Differentiate atmospheric, barometric, absolute, gauge, and hydrostatic pressure
• Convert among ATA, FSW, PSI, MSW, and mmHg
• Apply Dalton's, Henry's, Boyle's, and Charles' laws to hyperbaric scenarios
• Convert temperatures among Fahrenheit, Celsius, Rankine, and Kelvin
• Work with the U.S. Navy Standard Air Decompression Table, the No-Decompression Limits and Repetitive Group Designation Table, and the Residual Nitrogen Timetable

A Short Domain-Based Prep Schedule

Because the official weighted blueprint is not verified, we do not assign percentage weights to domains. The schedule below is an editorial sequencing suggestion that front-loads calculation-heavy material and leaves safety and nursing integration for the end. For a fuller plan, see our CHRN study guide, and for last-minute review use the CHRN cheat sheet.

You can practice with realistic questions on our CHRN practice test platform, and our CHRN training overview covers the introductory course pathway.

Frequently Asked Questions