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What are the 5 Chapters of the FPSI 10th Edition Study Guide?
- 1) Firefighter Orientation
- 2) Hoses and Ladders
- 3) First Aid and Rescue
- 4) Standard Operating Procedures
- 5) Emergency Incident Rehabilitation
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What are two types of non-fire related calls?
- Traffic accident
- Medical emergency
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What are a firefighter's duties at a fire?
- Connect hose lines to a hydrant
- Operate a pump to send water to high pressure hoses
- Position ladders to deliver water to the fire
- Rescue victims
- Provide medical attention
- Rescue trapped survivors
-
What percentage of fire departments provide ambulance service to patients?
About 50%
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What settings to firefighters work in?
- Urban and suburban areas
- Airports
- Chemical plants
- Industrial sites
- Grasslands
- Forests
- Hazardous materials
-
What are some of the duties a wildland firefighter?
- Suppress the blaze using heavy equipment, hand tools, and water hoses
- Create fire lines by digging out grass and other combustibles
- Smoke jumpers parachute in via plane to inaccessible areas
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What are three things firefighters do between alarms?
- Clean and maintain equipment
- Practice drills
- Practice inspections
- Participate in physical fitness activities
- Prepare written reports on fire incidents
- Review Fire Science literature
-
What are some of the risks of being a firefighter?
- Sudden cave-ins of floors
- Toppling walls
- Traffic accidents when responding to calls
- Exposure to flames and smoke
- Poisonous, flammable, or explosive gases and chemicals
- Radioactive or other hazardous materials
-
Facts about Firefighter hours
- Many work more than 50hrs in a week
- Some work 24 on 48 off
- Some work day shift of 10hrs for 3-4 days then a night shift for 3-4 nights then 3-4 days off
- Work extra hours at fires / emergencies
- Work on holidays
- Fire lieutenants and captains work same hours
-
What percentage of fire companies are volunteer?
70%
-
# of paid firefighters in 2002?
282,000
-
# of supervisors and managers in 2002?
63,000
-
# of fire inspectors in 2002?
14,000
-
What is public safety organization in some cities?
- Fire prevention
- Fire education
- Safety
- Emergency medical services
-
Criteria for firefighting jobs
- Pass written test
- Strength test
- Physical stamina
- Coordination
- Agility
- Medical exam / drug screen
-
Topics learned in fire academy
- Firefighting techniques
- Fire prevention
- Hazardous meterials control
- Local building code
- Emergency medical procedures
- First aid and cardiopulmonary resucitation
-
Some departments have appreticeship programs that last up to 5 years. What are some of the technical instruction programs?
- Firefighting techniques and equipment
- Chemical hazards associated with various combusitible building materials
- Emergency medical procedures
- Fire prevention and safety
-
Training sessions through US National fire Academy
- Executive development
- Anti-arson techniques
- Disaster preparedness
- Haz materials control
- Public fire safety and education
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Personal qualities of a firefighter?
- Mental alertness
- Self-Discipline
- Courage
- Mechanical aptitude
- Endurance
- Strength
- Sense of public service
- Initiative
- Good judgement
- Dependable
- Gets along with others
- Leadership qualities
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How do you promote?
- Written exam results
- Job performance
- Interviews
- Seniority
-
Typical line of promotion -
- Firefighter
- Engineer
- Lieutenant
- Captain
- Battalion Chief
- Assistant Chief
- Deputy Chief
- Fire Chief
-
Median hourly for firefighter in 2002
- $17.42 / hour
- $17.92 local government
-
Median annual salary for first line supervisors/managers of firefighting and prevention workers in 2002 -
- $55,450
- $56,390 - Local government
-
Median salary for fire inspectors in 2002 -
- $44,250
- $46,820 - Local government
-
Positions and min base salary -
- Fire chief - $64,134
- Deputy Chief - $56,522
- Assistant Fire Chief - $55,645
- Battalion Chief - $54,935
- Fire Captain - $45,383
- Fire Lieutenant - $41,800
- Fire Prevention / Code Inspector - $40,837
- Engineer - $38,656
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General Firefighter benefits
- Overtime pay
- Medical and liability insurance
- Vacation and sick leave
- Some paid holidays
- Protective clothing - helmets, boots, coats
- Breathing aparatus
- Dress uniforms
- Pension plans
- Retirement at half pay after 25 years
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How many deaths does CVD account for in the US?
Leading cause of deaths at 1MM per year
-
US Fire Administration aims to reduce FF deaths by what percentage by 2005?
25%
-
What is Cardiovascular disease (CVD)?
A state of disease in the blood vessels, where vessels become narrowed of obstructed then blood and the oxygen and nutrients that it carries cannot be delivered to the organs of the body.
-
What happens when blood flow to the heart muscle is impeded?
A heart attack occurs.
-
What is CHD and CAD?
Coronary Heart Disease and Coronary Artery Disease which are specific forms of CVD in which blood vessels supplying the heart muscles are blocked.
-
What is ischemia?
Lack of oxygen to tissue.
-
What is infarction?
Death of heart muscle tissue.
-
What is atherosclerosis?
Disease condition in which fatty substances and cholesterol builds up the arterial wall causing the size of the vessel opening to become narrower.
-
What is a modifiable risk factor?
A factor that can be minimized by diet, exercise, or personal habits.
-
What are the six modifiable risk factors?
- Smoking (leading avoidable cause)
- Hypertension
- Hypercholesterolemia
- Diabetes
- Obesity
- Physical activity
-
What are four risk factors that cannot be modified?
-
What percentage of the adult population smokes?
25%
-
How many deaths per year are caused by smoking?
430,000
-
What are the four risks that smoking increases?
- Sudden cardiac arrest
- Aortic aneurysm
- Peripheral vascular disease
- Stroke
-
What is hypertension?
Chronic elevation of blood pressure, over 140/90.
-
What percentage of hypertensive patients die from coronary heart disease?
50%
-
What percentage of hypertensive patients die from stroke?
33%
-
What percentage of hypertensive patients die from renal failure?
10 - 15%
-
What are blood lipids?
Comprised of triglycerides and cholesterol.
-
What are LDLs?
Low density lipoproteins or "bad cholesterol".
-
What are HDLs?
High density lipoproteins or "good cholesterol".
-
Who has a nine times elevated risk for heart attack?
Adult males in the top 25% quartile for cholesterol.
-
What % increase in risk for every 10mg/dl of cholesterol?
20-30%
-
What are two major factors that decrease triglycerides and increase HDL levels?
Weight loss and aerobic exercise.
-
What % of the population is obese?
20% of adults
-
What % of the population is overweight?
25-30% of adults
-
What is the health risk associated with excess body weight?
Increased risk of cardiovascular disease.
-
What happens to your body if you only exercise?
Lose fat and muscle.
-
What happens to your body if you diet and exercise?
Lose mostly fat.
-
What is diabetes?
Metabolic disorder characterized by the inability to use sugar effectively and haev a 300-500% increased chance of cardiac events.
-
What % of deaths from CVD are patients with diabetes?
70%
-
What is the term and the cluster of risk factors including diabetes?
- Metabolic Syndrome X
- Abdominal obesity
- Hypertension
-
What is the CVD risk factor for physically inactive people?
2x that of an active person.
-
What risk factors are influenced by exercising moderately?
- Decreased blood pressure
- Improved Lipid profile
- Decreased body fat
- Improved glucose tolerance
- Eliminates physical activity
-
What risk factor are influenced by eating a balanced diet?
- Improved lipid profile
- Decreased body weight
- Improved glucose tolerance
- May decrease blood pressure
-
What are the 5 benefits of being flexible?
- Decreases risk of injury
- Increases physical efficiency and performance
- Increases tissue temperature
- Increases neuromuscular coordination
- Reduces muscle soreness
-
What are the 4 benefits of strength training?
- Improved body composition
- Improved physical functioning
- Decreased risk for osteoarthritis and osteoporosis
- Improved flexibility
-
What are the two Ergonomic-Related Disorders?
- CTD or Cumulative Trauma Disorders
- Back Disorders
-
What are CTDs and two examples?
- Wear and tear on the joints surrounding tissue because of overuse.
- Tendonitis
- Nerve Compression
-
What are 7 risk factors of on the job CTDs?
- Repetition
- Force
- Awkward postures
- Contact Stress
- Vibration
- Temperature extremes
- Stressful conditions
-
Back Disorder
Pulled or strained muscles, ligaments, tendons, and discs
-
What are 7 types of Back Disorders
- Lumbosacral strain
- Sacroiliitis
- Lumbosacral sprain
- Postural low back pain
- Muscular insufficiency
- Herniated disc
- Degenerated disc
-
What are 8 risk factors for back disorders?
- Heavy physical work
- Lifting
- Bending, stretching, and reaching
- Twisting
- Pushing and pulling
- Prolonged sitting and standing
- Vibrations
- Accidents
-
What are the common diameters for fire hoses?
-
What are the two types of hoses?
-
What are two types of Suction Hoses?
-
What is a hard suction hose?
Rubber lined and jacketed with metal or wire bands between the rubber layers, used to draft water from a reservoir. Comes in 10 foot lengths.
-
What is a soft suction hose?
Rubber lined with a double woven cotton fabric jacket.
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What are the three categories of discharge hoses?
- Woven-jacket, rubber lined house
- Supply Hose
- Booster Hose
-
What is a Hose Wagon?
Sometimes responds with an engine. Carries tools and hose to augment the engine company.
-
Discharge Hose
Means of moving water under pressure from the pumper to the area of need
-
Fog nozzle
Mechanically breaks the stream of water coming from the hose into tiny particles. Absorbs more heat than a straight stream.
-
Engine
Triple combination motorized vehicle with a pump which carries house and water.
-
Straight Stream Nozzle
Nozzles in sizes 1/8 to 2.5 inch. Used to shape a stream for maximum reach
-
Master Stream Appliances
All nozzles and straight stream devices of 500 GPM and over
-
Common diameter for single jacketed hoses?
1.5 and 2.5 inch, used for building occupants for interior fire protection
-
Common diameter for double jacketed hoses?
1, 1.5, 1.75, 2.5, 3, 3.5, 4. 2.5 most common size and usually pre connected to the pump. 1.75 most common lightweight house.
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What is the maximum GPM for handheld streams?
250GPM
-
How much 2.5 inch house do most engines carry?
1200-2000 feet
-
How many GPM can 2-4 inch hose carry?
500-1000 gal
-
What size house to master supply appliances require?
3 inch
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Supply Hose
Hose that moves large volumes of water from hydrant to engine, engine to engine, engine to truck, or engine to master stream appliance.
-
Two types of supply hose?
Single and double jacket
-
What are available diameters of supply hose?
2.5, 4, 4.5, 5, and 6 inch
-
Booster hose
Rubber jacketed and rubber lined hose. Common size .75 and 1 inch. Pressure of 400PSI, up to 1,000PSI. 1 inch carries 2x .75 hose.
-
Coupling
Metal or metal alloy device for connecting hose ends or other fire service equipment.
-
4 Ways fire hose gets damaged
- Mechanical
- Chemical
- Heat
- Mildew
-
Egging
Out of roundness of a hose
-
Water Hammer
Occurs when a valve is abruptly closed causing increased pressure
-
Engine speed governor
Prevents damage to the pump by not allowing the RPM to vary
-
Two types of ladders
Ground and aerial
-
Ground ladder length
10-65ft and require 1 to 6 people to operate
-
Aerial ladder length
55-160ft, additionally classified into elevating platforms, aerial baskets, and snorkels
-
Fly
Portion of the extension type ladder which are elevated as the halyard rope is pulled
-
Bed
Bottom section of an extension ladder
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Attic ladder
10ft folding ladder used to get into attic or scuttle holes.
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Locks, Pawls, or Dogs
Device used for holding and locking the extended fly portions.
-
What's the proper climbing angle?
70 degrees
-
How far away from the house should the ladder go?
Take the ladder height, divide by 5 and add 2.
-
How many people are allowed on the ladder?
1 person for every 10 feet of ladder
-
Tormentor, brace or banger poles
Used on long extension ladders for control
-
4 ladder truck configurations
- Standard aerial truck ladder
- Tower ladder
- Aerial articulating ladder
- Special trucks
-
Aerial truck ladder lengths
- 65
- 75
- 85
- 100
- Special order
- 105
- 125
- 165
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How long can the brain go without permanent damage?
4 minutes
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Ventilation
Process of supplying oxygen to the body through the lungs and the simultaneous removal of carbon dioxide.
-
Once CPR is started, it must be continued until one of the following occurs
- Sufficient circulation and ventilation are restored. Patient is functioning on his own.
- Another qualified individual assumes responsibility for the CPR
- Physician orders you to stop
- You are too exhausted to continue
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How many inches is the lower sternum depressed for an adult for CPR?
1.5 to 2 inches
-
Compression ratio for adults in CPR?
30 compressions to 2 breaths
-
Rate of compressions
100 compressions per minute
-
How many inches is the lower sternum depressed for an children and infants for CPR?
1/3 of an inch
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What part of the heart is usually affected by an MI?
Left Ventricle
-
What is angina pectoris?
- Spasmodic chest pain
- Restricted blood flow to the heart
- Relieved with nitroglycerin
-
Three consequences of MI?
- Death from heart's inability to move blood
- Congestive heart failure
- Shock
-
6 Symptoms of MI?
- Chest pain
- Shortness of breath
- Sudden weakness, nausea, sweating
- Anxiety
- Unconsciousness
- Death
-
What is a CVA?
Cerebrovascular Accident - restricted blood supply to some part of the brain
-
Three causes of CVA?
- Blockage of cerebral artery when a blood clot forms at site of damage
- Rupture of an artery causing interruption of blood flow. Damage can be caused by blood flow into brain tissue or lack of blood
- Blood clot that formed elsewhere in the body and moves into the brain area
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How many risk factors of CVA are influenced by exercise?
5
-
How many risk factors can be modified?
6
-
How many risk factors cannot be modified?
4
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Aneurysm -
When a blood pressure reaches high level and blood vessel becomes weakened and protrudes
-
Signs of a stroke?
High blood pressure and low pulse
-
Indication of internal blood loss with puncture wound?
Low blood pressure due to internal organ damage
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Neurogenic Shock
When muscles of the blood vessels are temporarily paralyzed. Vessels tend to dilate and more blood flow than normal is required to fill them.
-
Internal bleeding signs
- Bright red blood vomited
- Dark brown stool or rectum bleeding
-
Hemorrhagic shock
Blood loss
-
Obstructive shock
Inadequate supply of blood
-
Neurogenic shock
Loss of nervous control of the vascular system
-
Psychogenic shock
Fainting caused by dilation of blood vessels from emotional stimulation
-
Cardiogenic shock
Inadequate functioning of the heart
-
Anaphylactic shock
Allergic reaction
-
Metabolic shock
Loss of bodily fluids and minerals as in dehydration
-
8 Signs of shock
- Restlessness and anxiety
- Weak, rapid pulse
- Cold, moist skin
- Face, lips, and nail beds become cyanotic
- Respirations are shallow and labored
- Extreme thirst and sensation of needing to vomit
- Blood pressure falls
- Unconsciousness
-
Symptoms of heat stroke
- All sweating ceases
- Body temperature of 105 or higher
- Collapse
-
Burns that should be treated as critical -
- 3rd degree burns involving critical areas - face, hand, feet
- 3rd degree burns involving more than 10% of body
- Respiratory tract burns
- 2nd degree burns over 30% of body
- Very old or young patients
- Additional diseases or chronic medical conditions
-
Moderate burns
- 2-10% of body 3rd degree (non-critical areas)
- 2nd degree 15-30%
- 1st degree 50-75%
-
Minor burns
- 3rd degree less than 2%
- 2nd degree less than 15%
- 1st degree less than 50%
-
Care for burns
- Immerse burn in cool water for 2-5 minutes
- Cover with sterile dressing
- Cool, wet applications
- Oxygen
- Start IV to replace lost fluids as a result of the burn
-
Care for Chemical Burns
Flush for 15-20 minutes
-
Acid
- Positive hydrogen ions
- Can cause burns and has sour taste
- Can be neutralized by a base
-
Alkali
Contains a base of salts or metals and can cause burns
-
Pancreas
- Located behind the stomach
- Produces insulin
-
Symptoms of diabetes mellitus
- Frequent urination
- Great thirst
-
Diabetic Coma
Body metabolizes fat, increases acid levels, loss of body fluids from vomit/urination
-
Symptoms of diabetic coma
- Air hunger
- Dehydration
- Sweet or fruity odor
- Rapid, weak pulse
- Slightly low blood pressure
- Various degrees of unresponsiveness
-
Insulin Shock
When too much insulin has been given, or patient has not eaten enough, or exercised excessively
-
Symptoms of insulin shock
- Normal respiration
- Pale, moist skin
- Dizziness and headache
- Full, rapid pulse
- Normal BP
- Unconsciousness
-
Primary issue with drug use
Respiration levels are low
-
Potential water hazards
- Current
- Depth
- Underwater and surface hazards
- Visibility
- Possible hazardous contaminates
-
2 water search patterns
Parallel and sweep patterns
-
Vacation time minimum
6 hours
-
Time that vacation must be requested
10am previous day
-
How do you call in sick leave?
- Before 5:30am
- To Battalion 201
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Multi-patient incident
Fewer than 25 patients
-
Mass casualty incident
25-100 patients
-
Disaster
More than 100 patients
-
General Tactical Objectives
- Remove endangered occupants and treat the injured
- Stabilize the incident and provide for life safety
- Ensure the functions of triage, extrication, treatment and transportation are established
- Provide for the safety, accountability, and welfare of rescue members and victims
- Conserve property
- Completion of a Triage Report
- Declaration of ALL IMMEDIATES Transported
-
What is the priority order of patients to be transported?
- Immediate
- Immediate - Delayed
- Delayed
- Minor
-
Initial Actions at a scene?
- Initiate triage
- Rapid hazard assessment and safe zone
- Initiate traffic control zone and provide a safe work area
- Hazard Protection
- Call additional resources
- Radio a triage report to alarm
- Stabilize hazards and/or remove patients to treatment area
- Assign crew tasks to accomplish through sectorization or by location
- Initiate patient assessment and treatment functions
- Coordinate patient transportation
-
When do you use triage tags?
More than 3 immediate patients or 10 patients
-
The incident commander is responsible for the strategic level of command structure and should do these 8 things -
- Determine strategy
- Establish incident objectives
- Set priorities
- Develop and communicate plan
- Obtain and assign resources
- Initiate planning based on evaluating interventions and predicting outcomes
- Communicate Objective to tactical level units
- Initiate Unified command with other agencies
-
What is PAR?
- Personnel Accountability Report
- A confirmation that all members are accounted for
-
When is a PAR warranted?
- Report of missing or trapped firefighter
- Change from offensive to defensive
- Sudden hazardous event at the incident
- When call for an "all clear"
- Every 30 minutes of elapsed time
- At report of fire under control
- Anytime command feels it is necessary
-
What does an Accountability Sector Officer do?
- Plan to track and account for personnel
- Ensure that Accountability Officers are implemented in each sector
- Request and manage sector resources as needed
- Provide progress reports to command
- Initiate PAR upon benchmarks or as needed
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Passport rules of thumb -
- Never enter the hot zone
- Maintained at the point of entry into the hot zone
- Reflect only those presently in the hot zone
- Crews turn in upon entering and retrieve upon exiting the hot zone
-
What is a RIC?
- Rapid Intervention Crew
- Used for working fires and those that pose a special hazard
-
What is a firefighter accountable for?
Staying with crew at all times and that his name is on the Passport at all times
-
What is an Engineer responsible for?
First engine becomes the Accountability Officer, collects Passports until relieved by a Accountability Officer or Sector Officer
-
What is a Company Officer responsible for?
Keeps crew intact and makes sure that Passport is accurate.
-
What is a Sector Officer responsible for?
Accounting for all crews in the assigned sector.
-
What is an Accountability Officer responsible for?
Teaming up with the Sector Officer and managing accountability for that sector. Collect all passports from engineers, apparatus, or sector officer.
-
What is an Accountability Sector Officer responsible for?
Managing accountability officers and system. Causes PARs to be initiated at benchmarks and reports to Command/Safety Section.
-
What is Command responsible for?
Tracking and location of all crews. Advises later assigned crews which engine or Sector, or Accountability Officer is accepting Passports.
-
How is thermal radiation measured?
Rate of heat transferred per unit area per unit time and is expressed in watts per square centimeter or calories per square centimeter per second where 1.0 watt/cm2 equals approximately 0.24 cal/cm2/sec.
-
What are Hot-Wet conditions?
- Exceeding 68 and rarely exceeding 100
- Humidity above 75%
- Rain and thunderstorms regularly
-
What are Hot-Dry conditions?
- Exceeding 68 and regularly exceeding 100
- Humidity below 75% and commonly below 25%
- Long periods without rain
-
What are Cold-Wet conditions?
- Between 14 and 68
- Changes in temp and rapid thaw/freeze cycle
-
What are Cold-Dry conditions?
- Temps less than 14
- Dry snow
-
What is a Class I fire condition?
- Small fire in room
- Temps to 140 and thermal radiation up to 0.05 watts/cm2 up to 30 min
-
What is a Class II fire condition?
- Occurs in a room that has been totally involved after the fire has been knocked down
- Temps from 105-203
- Thermal radiation from 0.05 to 0.100 watts/cm2 for up to 15 minutes
-
What is a Class III fire condition?
- Totally involved room
- Temps 204 to 482
- Thermal radiation from 0.175-4.2 watts for up to 5 minutes
-
What is a Class IV fire condition?
- During a flashover or backdraft
- Temps 483 to 1,500
- Thermal radiation from 0.175-4.2 watts for about 10 seconds
-
What is the HEAT acronym?
- High heat conditions
- Exertional level of work or training, especially on subsequent days
- Acclimatization and other individual risk factors
- Time - length and exposure and recovery time
-
What organization provides for standard PPE for firefighters?
- OSHA - Occupational Safety and Health Administration
- Title 29 Code of Federal Regulation
- Part 1910.156 structural fires
- 1910.120 for Hazmat
- 1910.1030 for blood-borne pathogens
-
What organization develops standards for design and performance of protective clothing and equipment for firefighters?
- NFPA - National Fire Protection Association
- NFPA -1971, Standard on Protective Ensembles for Structural Fire Fighting and Proximity Fire Fighting
-
What are the 3 layers of turnout clothing?
- Outer shell - Physical and flame protection, heavy woven fabric
- Middle layer - Moisture barrier, prevent the passing of liquids
- Inner Layer - Thermal barrier, insulation, usually two parts - woven face cloth next to body, and non-woven batting or layers that are oriented toward the moisture barrier. Must maintain "loft".
-
What percentage of para-aramids such as Kevlar are outer shell materials?
5-60%
-
Weight of outer shell materials?
6-7.5 oz / square yard
-
Weight of moisture barrier fabrics?
3.55 grams per square meter
-
What are benefits of modern thermal barriers?
Non-woven batting materials entrap air for more effective insulation.
-
Minimum Total Heat Loss standard by NFPA 1971 in 2000?
130 watts per sq meter
-
Minimum Total Heat Loss standard by NFPA 1971 in 2007?
205 watts per sq meter
-
Minimum Total Heat Loss standard by NFPA 1971 in 2000 for wildland fire and EMS operations?
450 watts per sq meter
-
Features of a helmet?
- Fluorescent and retroreflective markings
- Ear covers
- Either face shield or goggles or both
-
What are the top two surface area to volume ratio parts of the body?
-
What is NFPA 1975
Standard on Station/Work Uniforms for Fire and Emergency Services
-
What is Project FIRES?
- Firefighters Integrated Response Equipment System
- Purpose is to design, fabricate, laboratory and field test integrated protective clothing ensemble
-
What is Project HEROES?
- Homeland Emergency Response Operational and Equipment Systems
- Next generation on structural firefighting clothing
- Protecting from CBRN, chemical, biohazard, radiation, and nuclear, as well as fire
-
What is the temperature range where a nude human doesn't have to compensate?
80-86 F
-
What are temperature ranges for the human body?
- Tasks become impaired below 95
- Cardiac arrest possible below 85
- Brain can suffer irreparable damage above 105
-
What effect will 1% of body fluid lost to dehydration have on core temperature?
Raise the core temperature by .25-.50 degrees
-
What will a 4% loss of fluid volume do to firefighter's performance?
Decrease by 50%
-
What conditions increase risk factors in high heat?
- Dehydration and salt depletion
- Lack of heat acclimitization
- Poor fitness/excess body fat
- Skin problems
- Minor illnesses
- Medications
- Chronic disease
- Recent Alcohol use
- Prior heat injury
- Age
- Highly motivated people
- Genetics
-
Anticholinergics (atropine)
Impaired sweating
-
Antihistamines
Impaired sweating
-
Gluthemide (Doriden)
Impaired sweating
-
Phenothiazines (antipsychotics - Thorazine, stelazine trilafon)
Impaired sweating, disturbed hypothalmic temp regulation
-
Tricyclic antidepressants
Impaired sweating, increased motor activity
-
Amphetamines, cocaine, ecstacy
Increase pyschomotor activity, activated vascular endothelium
-
Ergogenic stimulants (ephedrine/ephedra)
Increased heat production
-
Lithium
Nephrogenic diabetes insipidus and water loss
-
Diuretics
Salt depletion and dehydration
-
Beta-Blockers
Diuresis, possible effects on intestinal permeability
-
How long does heat acclimatization take?
- 2hrs per day for two weeks
- 50% pysiologic complete after 1 week, 80% after 2 weeks
- If no further acclimitization, retained after a week, 75% gone after 3 weeks
-
Three common heat illnesses?
- Miliaria
- Heat Syncope
- Heat cramps
-
What is Miliaria?
- Prickly heat, acute inflamatory disease of the skin. Pores become clogged.
- Prevention - resting in cool place for portions of work cycle, bathing and drying the skin, changing into dry clothes
-
What is heat syncope?
- Fainting, caused by dilation of large blood vessels, less blood flow to brain
- Once supine, person usually recovers
-
What are heat cramps?
- Loss of electrolytes, usually affect voluntary muscles and sometimes the abdominal wall
- Saline solution, 0.1 by mouth or 0.9% by IV
-
What is heat exhaustion?
- Excessive sweat and inadequate hydration
- Peripheral vascular collapse and hypoperfusion of the body's organs
-
Symptoms of Heat exhaustion?
- Fainting
- Profuse sweating
- Headache
- Tingling sensation in extremities
- Ashen pallor
- Dyspnea
- Nausea
- Vomiting
- High systolic 130+ BP just prior, and rapid drop to normal
- Moist, cool skin
- Rapid 100-200 pulse, thready
-
What is heat stroke?
Inability to regulate temperature, cooling functions not working
-
What are symptoms of heat stroke?
- Fainting
- Disorientation
- Delirium
- Loss of consciousness
- Convulsions
- Skin is hot, flushed, and dry
- Wet and clammy skin in later stages
- Rectal temperatures of 106
- Respirations rapid and deep
- Normal Systolic, low diastolic
- Possible long term intolerance to heat
-
What temperature adjustment should you make if wearing turnouts?
- Add 10 degrees to temperature
- Monitor drills and exercise when temps above 90 and modify or suspend when above 105 degrees
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