Practice Test Geeks(CHS) Certified Hyperbaric Specialist Practice Test
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Emergency Procedures & Regulatory Compliance Questions and Answe Flashcards

7 cards from real CHS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Emergency Procedures & Regulatory Compliance Questions and Answe flashcards as text

  1. During a hyperbaric treatment, a patient develops a grand mal seizure at 2.4 ATA. What is the immediate first action?

    Answer: Remove the oxygen mask and maintain depth until seizure subsides

    During an oxygen convulsion, the mask is removed to stop oxygen delivery and the patient is kept at depth until the seizure ends before controlled ascent.

  2. Under NFPA 99, hyperbaric chambers are classified into which categories based on occupancy?

    Answer: Class A (multi-place), Class B (mono-place), Class C (animal/research)

    NFPA 99 classifies hyperbaric facilities as Class A (multi-occupant), Class B (single occupant), and Class C (non-human occupancy).

  3. A fire breaks out inside a Class A multi-place hyperbaric chamber during treatment. What is the FIRST priority action?

    Answer: Initiate emergency decompression and notify the fire department

    Life safety is the first priority; emergency decompression removes occupants while fire suppression and emergency services are simultaneously activated.

  4. Which federal agency has primary regulatory oversight over hyperbaric oxygen therapy facilities in the United States?

    Answer: The Centers for Medicare & Medicaid Services (CMS)

    CMS sets coverage and safety standards for HBO therapy, and accreditation bodies like The Joint Commission enforce compliance for reimbursement.

  5. What minimum oxygen concentration in the chamber atmosphere triggers a fire hazard emergency response per NFPA 99?

    Answer: 23.5%

    NFPA 99 identifies an oxygen-enriched atmosphere as greater than 23.5% O2, at which point fire risk increases significantly and emergency protocols activate.

  6. A hyperbaric chamber operator discovers a patient is experiencing arterial gas embolism (AGE) immediately after surfacing from a dive. The treatment protocol of choice is:

    Answer: US Navy Treatment Table 6 with oxygen breathing

    USN Table 6 at 2.8 ATA with oxygen periods is the standard recompression treatment for AGE and severe decompression sickness.

  7. According to UHMS guidelines, which staff credential is required to supervise inside a multi-place hyperbaric chamber during patient treatment?

    Answer: A Certified Hyperbaric Technologist (CHT) or Registered Nurse trained in hyperbaric medicine

    UHMS and accreditation standards require that an inside attendant be a trained CHT or equivalently credentialed clinical professional.