BME 5050 – Exam 1 Study Guide (Biomedical Engineering Graduate Review, Key Concepts &
Practice Questions with Answers)
false - ANS ✔✔(T/F) the type of ventilation found in most hospital patient rooms is a closed
zone system
mechanical floor - ANS ✔✔fresh air enters the hospital on what floor?
ASHRAE - ANS ✔✔the primary standards making organization for ventilation of hospitals
room temperature, room lighting, personal sensitivity - ANS ✔✔what can affect sensitivity to
chemical exposure?
modify building system itself - ANS ✔✔what is the most effective way of resolving problems in a
building system?
true - ANS ✔✔(t/f) patient infection in the hospital can be affected by the ventilation system
higher - ANS ✔✔the pressure in an operating room is set at xx pressure than the corridor to
prevent airborne contaminants from entering the room
laminar flow system - ANS ✔✔system designed to reduce surgical site microbial contamination
during long procedures
negative, 12 - ANS ✔✔a patient with tuberculosis needs positive/negative pressure and what
ach?
Closed zone and recirculating air - ANS ✔✔2 types ventilation systems
,temperature, humidity, even distribution, clean air - ANS ✔✔4 purposes of ventilation system
closed zone - ANS ✔✔type of ventilation system where there is a local heating/cooling source
with radiators/air conditioners
recirculating air - ANS ✔✔type of ventilation system where there's a central furnace which
warms/humidifies air and circulates it, or there's HVAC
air in, room in building, and air our - ANS ✔✔3 components of basic ventilation system
volume, temperature, humidity, pressure, odors, particulates, % fresh air - ANS ✔✔components
of air in and room in building for ventilation
volume - ANS ✔✔components of air out for ventilation
supply volume, supply temperature, supply humidity, supply fresh air, exhaust volume - ANS
✔✔5 aspects ventilation design
ANSI.ASHREA/ASHE Standard 170-2017 ventilation healthcare facilities, CDC Hospital Ventilation
Specifications (2003), Guidelines for Design and Construction of Hospitals (AIA-Facilities
Guidelines Institute, 2018) - ANS ✔✔3 major HVAC standards
ASHRAE Handbook: Chapter 9, 2019 - ANS ✔✔HVAC Guideline that discusses air conditioning in
disease prevention and treatment, hospital air quality, facility design and operation
HVAC Design Manual for Hospitals and Clinics - ANS ✔✔HVAC guideline that discusses design
strategies and best practices
,emergency departmnt waiting area, AII rooms, laboratory, autopsy - ANS ✔✔rooms with
negative air pressure to adjacent areas
airborne infectious isolation - ANS ✔✔AII rooms stands for
operating rooms, surgery & critical care, protective isolation, X-ray, clean rooms - ANS
✔✔rooms with positive air pressure to adjacent areas
20/hr - ANS ✔✔min air change per hour for OR
12/hr - ANS ✔✔min air change per hour for Protective isolation and AII
ASHRAE 62.2 - 2016 - ANS ✔✔guideline that sets ventilation for acceptable indoor air quality,
where it discusses air exchange rates, fresh air %, occupied vs. unoccupied standards, total air
supply flow rate, CO2 levels 700 ppm above outside air, CO2 levels 1000 ppm maximum, 15
cfm/person fresh air, 30-60% humidity
air filtration systems - ANS ✔✔HEPA filters, activated carbon filters, whole facility HVAC
systems, area systems, biological cabinets, laminar work flow benches, pathology workstations,
OR systems (ortho rooms)
Minimum Efficiency reporting values (MERVs) - ANS ✔✔how are filters rated, report a filter's
ability to capture larger particles between 0.2 and 10 microns
better - ANS ✔✔the higherthe MERV rating, the xx the filter is at trapping specific types of
particles
true HEPA filter - ANS ✔✔filters 99.97% of particles 0.3 microns in size
, ULPA (ultra low particulate air) - ANS ✔✔filters 99.9995% of particles down to 0.12 microns
HEPA filter - ANS ✔✔sometimes provides 99% particles filtration of particles 2 microns in size
engineering controls, administrative controls, personnel protective equipment (PPE) - ANS ✔✔3
hierarchy of controls
engineering controls - ANS ✔✔preferred method to control, attempt to remove, isolate, or
reduce contamination without self-protective action (substitution, isolation, ventilation, process
and equipment modifications)
- control source contamination
- filtration
-ventilation
-room pressure
-remove porous surface
control source contamination, filtration, ventilation, local exhaust, relocate exhaust vents, adjust
pressures - ANS ✔✔engineering solutions examples (6)
filtration - ANS ✔✔remove particles
ventilation - ANS ✔✔dilute chemicals
high, dilute, raise, larger - ANS ✔✔engineering solutions can cause xx ventilation rates, xx
contaminent contents, xx fuel costs, xx heating and cooling equipment
administrative controls - ANS ✔✔control which reduces the likelihood of exposure (examples
are limiting access, changing way task performed, job rotation, signs and warning labels)
Practice Questions with Answers)
false - ANS ✔✔(T/F) the type of ventilation found in most hospital patient rooms is a closed
zone system
mechanical floor - ANS ✔✔fresh air enters the hospital on what floor?
ASHRAE - ANS ✔✔the primary standards making organization for ventilation of hospitals
room temperature, room lighting, personal sensitivity - ANS ✔✔what can affect sensitivity to
chemical exposure?
modify building system itself - ANS ✔✔what is the most effective way of resolving problems in a
building system?
true - ANS ✔✔(t/f) patient infection in the hospital can be affected by the ventilation system
higher - ANS ✔✔the pressure in an operating room is set at xx pressure than the corridor to
prevent airborne contaminants from entering the room
laminar flow system - ANS ✔✔system designed to reduce surgical site microbial contamination
during long procedures
negative, 12 - ANS ✔✔a patient with tuberculosis needs positive/negative pressure and what
ach?
Closed zone and recirculating air - ANS ✔✔2 types ventilation systems
,temperature, humidity, even distribution, clean air - ANS ✔✔4 purposes of ventilation system
closed zone - ANS ✔✔type of ventilation system where there is a local heating/cooling source
with radiators/air conditioners
recirculating air - ANS ✔✔type of ventilation system where there's a central furnace which
warms/humidifies air and circulates it, or there's HVAC
air in, room in building, and air our - ANS ✔✔3 components of basic ventilation system
volume, temperature, humidity, pressure, odors, particulates, % fresh air - ANS ✔✔components
of air in and room in building for ventilation
volume - ANS ✔✔components of air out for ventilation
supply volume, supply temperature, supply humidity, supply fresh air, exhaust volume - ANS
✔✔5 aspects ventilation design
ANSI.ASHREA/ASHE Standard 170-2017 ventilation healthcare facilities, CDC Hospital Ventilation
Specifications (2003), Guidelines for Design and Construction of Hospitals (AIA-Facilities
Guidelines Institute, 2018) - ANS ✔✔3 major HVAC standards
ASHRAE Handbook: Chapter 9, 2019 - ANS ✔✔HVAC Guideline that discusses air conditioning in
disease prevention and treatment, hospital air quality, facility design and operation
HVAC Design Manual for Hospitals and Clinics - ANS ✔✔HVAC guideline that discusses design
strategies and best practices
,emergency departmnt waiting area, AII rooms, laboratory, autopsy - ANS ✔✔rooms with
negative air pressure to adjacent areas
airborne infectious isolation - ANS ✔✔AII rooms stands for
operating rooms, surgery & critical care, protective isolation, X-ray, clean rooms - ANS
✔✔rooms with positive air pressure to adjacent areas
20/hr - ANS ✔✔min air change per hour for OR
12/hr - ANS ✔✔min air change per hour for Protective isolation and AII
ASHRAE 62.2 - 2016 - ANS ✔✔guideline that sets ventilation for acceptable indoor air quality,
where it discusses air exchange rates, fresh air %, occupied vs. unoccupied standards, total air
supply flow rate, CO2 levels 700 ppm above outside air, CO2 levels 1000 ppm maximum, 15
cfm/person fresh air, 30-60% humidity
air filtration systems - ANS ✔✔HEPA filters, activated carbon filters, whole facility HVAC
systems, area systems, biological cabinets, laminar work flow benches, pathology workstations,
OR systems (ortho rooms)
Minimum Efficiency reporting values (MERVs) - ANS ✔✔how are filters rated, report a filter's
ability to capture larger particles between 0.2 and 10 microns
better - ANS ✔✔the higherthe MERV rating, the xx the filter is at trapping specific types of
particles
true HEPA filter - ANS ✔✔filters 99.97% of particles 0.3 microns in size
, ULPA (ultra low particulate air) - ANS ✔✔filters 99.9995% of particles down to 0.12 microns
HEPA filter - ANS ✔✔sometimes provides 99% particles filtration of particles 2 microns in size
engineering controls, administrative controls, personnel protective equipment (PPE) - ANS ✔✔3
hierarchy of controls
engineering controls - ANS ✔✔preferred method to control, attempt to remove, isolate, or
reduce contamination without self-protective action (substitution, isolation, ventilation, process
and equipment modifications)
- control source contamination
- filtration
-ventilation
-room pressure
-remove porous surface
control source contamination, filtration, ventilation, local exhaust, relocate exhaust vents, adjust
pressures - ANS ✔✔engineering solutions examples (6)
filtration - ANS ✔✔remove particles
ventilation - ANS ✔✔dilute chemicals
high, dilute, raise, larger - ANS ✔✔engineering solutions can cause xx ventilation rates, xx
contaminent contents, xx fuel costs, xx heating and cooling equipment
administrative controls - ANS ✔✔control which reduces the likelihood of exposure (examples
are limiting access, changing way task performed, job rotation, signs and warning labels)
