CHRN - Certified Hyperbaric Registered Nurse

The Certified Hyperbaric Registered Nurse (CHRN) certification is a specialized credential for registered nurses who provide care in hyperbaric medicine. This certification is granted through the Baromedical Nurses Association Certification Board (BNACB). The National Board of Diving and Hyperbaric Medical Technology (NBDHMT) administers the training and exam. This certification recognizes nurses' expertise in hyperbaric oxygen therapy (HBOT) and wound care. The CHRN certification is designed for nurses involved in the treatment of decompression sickness, chronic wounds, and other conditions that benefit from HBOT.

Completion Time: 2 hours

Cost:

• BNA Members $250

• UHMS/ACHM Members $300

• Non-members $400

• Exam re-take $100

• Advanced certification (additional to certification fees) $20

Exam Format

The CHRN exam includes 120 multiple-choice questions covering topics such as hyperbaric medicine principles, patient assessment and care in the hyperbaric environment, wound healing, and safety standards.

The exam assesses knowledge of the operational aspects of hyperbaric chambers and the physiological effects of hyperbaric oxygen.

A passing score is 70%.

Eligibility criteria include an RN license and clinical experience in hyperbaric medicine.

The application process involves submitting documentation of professional experience and educational qualifications.

If unsuccessful on the exam, candidates can reapply following the certifying organization's reexamination policies.

A current, active RN license and experience in hyperbaric medicine or wound care are typical prerequisites.

CHRN certification typically requires renewal every 4 years. Renewal involves meeting continuing education requirements and paying a renewal fee.

Requirements:

• Hold an active, unrestricted RN license

• Complete 40 hours of continuing education within the past four years, with at least 20 hours specific to hyperbaric medicine.

Renewal Fees:

• BNA Members: $150 USD

• UHMS or ACHM Members: $200 USD

• Non‑Members: $250 USD

• Reinstatement (if certification has lapsed): additional $100 USD added to the recertification fee

Specific CE requirements typically include courses or training related to hyperbaric medicine and wound care.

Detailed records of these activities must be maintained and submitted during the renewal process.

For authoritative and detailed information on Certified Hyperbaric Registered Nurse certification, including application guidelines, exam preparation materials, and renewal processes, it is recommended to consult the website or contact the office of the relevant certifying organization, such as the Baromedical Nurses Association (BNA) or the Undersea & Hyperbaric Medical Society (UHMS).

The NBDHMT offers exam candidates:

• Resource Manual, includes a study guide

• Aproved Training Courses

Additional resources might include workshops, seminars, and practical training in hyperbaric facilities.

The BNACB offers the Advanced Certified Hyperbaric Registered Nurse (ACHRN).

After obtaining CHRN certification, nurses may pursue further certifications in wound care or hyperbaric medicine.