ABPM Undersea and Hyperbaric Medicine study guide
ABPM Undersea and Hyperbaric Medicine · Work through your exam, one topic at a time.
Undersea and Hyperbaric Medicine (UHM) is a subspecialty certification offered by the American Board of Preventive Medicine (ABPM) for physicians whose work involves high-pressure environments and hyperbaric oxygen therapy. ABPM describes the discipline as dealing with prevention of injury and illness from exposure to increased ambient pressure - diving, hyperbaric chamber exposure - and with the therapeutic use of high environmental pressure and oxygen under pressure to treat disease. The scope emphasizes occupational, environmental, safety and clinical aspects of diving, hyperbaric chamber operations, compressed-air work and hyperbaric oxygen therapy. Applicants generally need an unrestricted medical license, current primary specialty certification through an ABMS member board, AOA, RCPSC or CFPC, and completion of an ACGME-accredited UHM fellowship of at least 12 months; ABPM also describes a COLT pathway for mid-career physicians, and ABEM diplomates apply through ABEM. The ABPM Undersea and Hyperbaric Medicine study guide has 4 sections and about 1,024 words.
01Diving Physiology and Barotrauma: Core Concepts
Absolute pressure is the foundation. At sea level it is 1 atm; in seawater add 1 atm per 10 m, so 30 m equals 4 ATA.
293 words, about 1 min02Hyperbaric Oxygen Therapy: Mechanisms, Indications, and Dosing
Hyperbaric oxygen therapy (HBOT) delivers a high inspired oxygen partial pressure at increased ambient pressure. It shrinks gas bubbles, hyperoxygenates ischemic tissue, supports neutrophil killing, promotes wound healing, and causes vasoconstriction that reduces edema.
234 words, about 1 min03Hyperbaric Chamber Operations and Safety
Hyperbaric chambers are pressure vessels and should follow recognized PVHO standards, with verified relief valves, gauges, communications, and door seals. The chamber atmosphere must stay below 23.5% oxygen by volume; 100% oxygen is delivered by mask, head tent, or ventilator, not used to pressurize the room.
245 words, about 1 min04Occupational and Environmental Aspects of Diving and Compressed-Air Work
Fitness-to-dive decisions ask whether a condition could cause sudden incapacitation underwater, impair gas exchange or bubble handling, or be worsened by pressure. Key systems are cardiovascular, respiratory, neurologic, ENT, endocrine, and musculoskeletal.
252 words, about 1 min