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Preparing for the CHT or CHRN exam

International ATMO has two different types of study material to help you prepare for your CHT or CHRN certification exam. They approach the information in different ways; and you may find one approach more helpful to you than the other. Although you might use both to prepare for the exam, they were not intended to be companions to one another. Customer feedback about both of these materials has been overwhelmingly positive.

CHT/CHRN Certification Exam Review Course (DVD format)

This 3-disc set contains 6 hours of material. It was recorded at a live Review Course. The two presenters are experienced hyperbaric professionals who hold CHT and CHRN certifications. The viewer will see both the presenter and the slide images on video. The presentations use video clips and images to illustrate key points. The graphics make it easier to understand physics, physiology, dive tables, and equipment issues. Included is a presentation on test-taking strategies. Pros: This material is useful for people who are better incorporate information when presented verbally or visually. Cons: Watching a video presentation is a passive learning activity. Many people incorporate information better when more actively engaged.

CHT and CHRN Certification Exam Practice Book

This 180 page book contains hundreds of multiple choice questions and answers. The book teaches relevant information likely to be on the exam through question and answer format. Rationale is given for right and wrong answers; and background knowledge is given in the rationale. Unlike actual exam questions, this book builds your knowledge of particular topics by using a series of related questions. The book is divided into different sections, including: physics, barotrauma, decompression theory, decompression tables, therapeutic mechanisms of HBO, treatment indications and profiles, equipment, patient and staff safety, and transcutaneous oximetry. The introduction to the book also includes test-taking strategies. Pros: The Q&A format is an active learning process. The Q&A format is helpful to exam candidates who are inexperienced or uncomfortable with multiple choice exams. Cons: The book has limited use of graphics.

Robert Sheffield, BA, CHT
Director of Education
International ATMO

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