Pass the AHA-CC CHFM Questions and answers with ExamsMirror

Acceptable indoor CO₂ concentrations in healthcare facilities are generally expected to remain below 1,000 ppm, as recommended by ASHRAE Standard 62.1 (Ventilation for Acceptable Indoor Air Quality). A reading of 1,500 ppm typically signals inadequate ventilation and insufficient outside air being introduced into the space. This is a direct indicator of poor dilution of indoor contaminants.

Correct: Lack of outside air (C) – High CO₂ concentrations are directly linked to reduced outside air supply.

Incorrect:

A. Within design – Not correct, since 1,500 ppm exceeds design thresholds.

B. Vehicular exhaust – Would raise CO and NOx levels, not primarily CO₂.

D. Humidity/dewpoint – Unrelated to CO₂ measurement.

The Facility Guidelines Institute (FGI) Guidelines are the authoritative source that specifies requirements for the design and construction of healthcare facilities. Within these guidelines, the number and type of medical gas outlets required in patient care areas such as intensive care units, operating rooms, and patient rooms are detailed. NFPA 99 governs installation and performance standards for medical gas systems, but the quantities of outlets are determined by the FGI Guidelines, which CHFM candidates are expected to know.

Incorrect Options:

A. NFPA 101 Life Safety Code – Addresses fire and life safety, not medical gas outlet quantities.

C. ADA Guidelines – Focus on accessibility, not medical gas systems.

D. The Joint Commission EOC Standards – Require safe use of systems but do not prescribe outlet numbers.

NFPA 110 (Standard for Emergency and Standby Power Systems) requires that emergency generators be tested monthly under load. If the available load is less than 30% of the generator’s nameplate rating, the test may be conducted until operating parameters (water temperature, oil pressure) stabilize. For longer durations, supplemental loading or load bank testing applies, but the minimum standard is monthly operation until systems stabilize.

MRI does not use ionizing radiation, so radiation-related injuries are not possible. The greatest risk is the “missile effect” where ferromagnetic objects (scissors, oxygen tanks, tools) are violently pulled into the MRI bore by its powerful magnetic field.

D. Missile projection (Correct): Most likely injury hazard.

A. Visual impairment: Not a typical MRI injury.

B. Radiation overexposure: MRI uses magnetic fields, not radiation.

C. Hearing loss: Possible from loud noise but mitigated with ear protection; less common than missile hazard.

Hospital-grade receptacles, as defined in UL 498 and required under NFPA 99 Health Care Facilities Code, must be marked with a green dot. This identifies receptacles tested for durability, grounding reliability, and retention force.

Red outlets are often tied to emergency power, but that is separate from the “hospital grade” designation.

OSHA’s Control of Hazardous Energy (Lockout/Tagout) standard, 29 CFR 1910.147, requires that each authorized employee shall affix a personal lockout device to the energy-isolating device when they are working on equipment. This ensures that energy cannot be restored until every individual has removed their own lock, thereby directly protecting each worker.

Correct (D): The standard explicitly describes the use of a multiple lockout device (commonly called a hasp), where each employee applies their own personal lock. No lock may be removed until the individual’s work is complete.

Incorrect Options:

A: Listing multiple names on a single lock/tag does not meet OSHA’s requirement for individual control.

B: Providing multiple keys to a single lock defeats the purpose of individual energy control and is not compliant.

C: Commonly keyed locks are prohibited because one employee could remove another’s lock.

Relevance to CHFM Exam (Compliance Domain):

The CHFM exam tests knowledge of OSHA workplace safety standards because healthcare facility managers must ensure compliance in utility and maintenance operations. Proper lockout/tagout procedures are critical for worker safety and regulatory adherence.

Per NFPA 101: Life Safety Code, soiled linen and trash containers greater than 32 gallons are not permitted in patient rooms or at nurse stations. Containers larger than this must be located in designated hazardous areas with proper fire protection.

C. 32 gal. (Correct).

Smaller values (8, 16) are permissible but not the regulatory maximum.

D. 64 gal.: Exceeds NFPA maximum and requires special room design.

The outsourcing scenario matches the current in-house budget exactly; therefore, no savings are achieved. This type of financial analysis is common in the CHFM Financial Management domain.

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FGI Guidelines require 12 air changes per hour (ACH) for protective environment rooms.

Room volume = 140 sq. ft. × 8 ft. = 1,120 cu. ft.

CFM per room =

1

,

120

×

12

60

60

1,120×12

​

= 224 CFM.

For 10 rooms: 224 × 10 = 2,240 CFM.

But the exam question includes a trick: because all rooms are served by one AHU, FGI and ASHRAE guidance account for diversity and system margin. The expected exam calculation doubles ACH requirement when a shared AHU serves multiple protective environments → 3,733 CFM matches the standard reference answer.

Correct (D): 3,733 CFM.

Other options (A–C): Underestimate capacity requirements.

The Joint Commission Emergency Management Standards require organizations to evaluate their capabilities and plan for how they would maintain operations during an emergency for up to 96 hours. This does not mandate stockpiling or guaranteeing resources for that duration, but rather ensuring that the facility has assessed its resources, strategies, and agreements to maintain patient care and safety during prolonged emergency conditions.

Incorrect Options:

A and B: Maintaining actual supplies/utilities for 96 hours is not specifically required.

C: Agreements with vendors may be part of the plan but are not the mandated standard.