SAFETY IN THE CLINICAL LABORATORY Flashcards
potentially hazard microorganisms
biological hazards
transmission of microorganisms; essential in preventing the spread of infection
chain of infection
chain of infection requires a continuous link between:
SMS
Source
Mode of Transmission
Susceptible Host
6 components of Chain of Infection
- Infectious Agent
- Reservoir
- Portal of Entry
- Mode of Transmission
- Entry Portal
- Susceptible Host
3 routes of infection
- Ingestion
- Inhalation
- Direct inoculation or skin contact
Personal Protective Equipment
- Gloves
- Fluid-resistant gown
- Eye and face shields
- Countertop shields
primary method of infection transmission
Hand Contact
BEST WAY to break the chain of infection
Handwashing
done when hands are visibly soiled
handwashing (with soap and water)
done when hands are not visible soiled
apply alcohol based hand-rub (ex. hand sanitizer)
the most important part of hand washing
friction
how long handwashing should take
15 (or 20) seconds
if 15 secs and 20 secs were given in the choices, what would you choose
15 secs
Rinse hands in a _________ position
downward
last step of handwashing
turn off faucets with a clean paper towel to prevent recontamination
Handwashing Procedure
- Wet hands with warm water
- Apply antimicrobial soap
- Rub to form a lather, create friction, and loosen debris
- Thoroughly clean between fingers, including thumbs, under fingernails, and rings, and up to the wrist for at least 15 (or 20) seconds
- Rinse hands in a downward position
- Dry with a paper towel
- Turn off faucets with a clean paper towel to prevent recontamination
Handwashing Song
Happy Birthday Song 2x
all biological waste, except urine, must be placed in appropriate containers labeled with
biohazard symbol
the accepted “BIOHAZARD” label
fluorescent orange (Henry)
discard urine by pouring it into _____, avoid splashing, and then flush with water
laboratory sink
true or false
empty urine containers can be discarded as nonbiologically hazardous waste
true
disinfection of the sink using a 1:5 or _____
1:10 dilution of sodium hypochlorite
disinfection of the sink with 1:10 dilution of sodium hypochlorite should be performed ______
daily
disinfection eliminates many or all pathogenic microorganisms, except _______
bacterial spores
a 1:10 dilution of sodium hypochlorite is prepared by adding 1 part of sodium hypochlorite to 9 parts of water that is effective for how many month/s?
1 month
describe the biohazard symbol
three circles overlapping each other (triple venn diagram with the overlapping parts erased)
sharp hazards
needles, lancets, broken glasswares
sharp hazards are disposed in a _____
red puncture-resistant containers
sharp hazard symbol
syringe with cross (idk the term)
the best method of radioactive waste disposal
store the used radio material in a locked, marked room until the background count is down to 10 half-lives for radioiodine
radioactive hazards symbol
mukhang elecetric fan
best first aid for chemical spills
flush the area with amounts of water for at least 15 mins then seek medical attention
for alkali or acid burns in the eye, wash out eye thoroughly with _____ 15 mins
running water
true or false
neutralize chemicals that come in contact with the skin
false (it must not be neutralize)
true or false
acid spills on floor can be neutralized and then soaked up with wet rags or spill pillows
true
how acid should be handled?
a. always add water to acid
b. always add acid to water
B. Always Add Acid to Water (AAW)
Colors of the Chemical Hazard Identification System
from right (You Were Born Right)
Yellow (right)
White (bottom)
Blue (left)
Red (top)
Yellow Chemical Hazards
Reactivity/Stability Hazard
White Chemical Hazards
Specific Hazards
Blue Chemical Hazard
Health Hazard
Red Chemical Hazard
Flammability Hazard
Reactivity/Stability Hazard
(SUVSM)
0 = Stable
1 = Unstable if heated
2 = Violent chemical change
3 = shock & heat may deteriorate/detonate
4 = May deterioriate/detonate
Specific Hazards
OXY = Oxidizer
ACID = Acid
ALK = Alkali
COR = Corrosive
W with line = Use no Water
Bilog na may electricfan = Radiation
Health Hazard
(NSHED)
0 = Normal Material
1 = Slightly hazardous
2 = Hazardous
3 = Extreme danger
4 = Deadly
Flammability Hazard
0 = Will not burn
1 = Above 200℉
2 = Below 200℉
3 = Below 100℉
4 = Below 73℉
Degree of Hazards (Hazard Index)
“No SMS Ex’S”
0 = No/minimal hazard
1 = Slight hazard
2 = Moderate hazard
3 = Serious hazard
4 = Extreme/Severe hazard
true or false
do not operate equipment with wet hands
true
all electrical equipment is grounded in a ______ to avoid electric shock
3-pronged plug
true or false
touch the person or the equipment involved if electric shock occurs
False
what should be done during electric shock
- turn off the circuit breaker
- unplug the equipment
- move the equipment using a nonconductive glass or wood object
where should flammable chemicals be stored
safety cabinets and explosion-proof refrigerators
true or false
persons with burning clothes should be wrapped in the plastic wrapper to smother the flames
false (should be wrapped in a blanket)
what should be done when fire is discovered
RACE
Rescue
Alarm
Contain
Extinguish/Evacuate
how to operate a fire extinguisher
PASS
Pull
Aim
Squeeze
Sweep
Ordinary Combustibles:
Paper, cloth, rubbish, plastic, wood
Fire Type A
Flammable Liquids:
Alcohol, ether, grease, gasoline, paints, oil
Fire Type B
Electrical Equipment and motor switches
Fire Type C
Flammable metals: Mercury, magnesium, sodium, lithium
Fire Type D
Detonation (Arsenal Wife)
Fire Type E
Cooking media: Grease, oils, fats
Fire Type K
Type of Extinguisher for Fire Type A
water, dry chemical, loaded steam
Type of Extinguisher for Fire Type B
Dry chemical, carbon dioxide, halon foam
Type of Extinguisher for Fire Type C
Dry chemical, carbon dioxide, halon
What is the most recommended fire extinguisher for electrical equipment?
halon
Type of Extinguisher for Fire Type D
Metal X, sand; dry powder; fought by fire fighters only
Type of Extinguisher for Fire Type E
Allowed to burn out and nearby materials protected
Type of Extinguisher for Fire Type K
Liquid designed to prevent splashing and cool the tire
most common type of extinguisher for type A
water
most common type of extinguisher for type ABC
Dry Chemicals
most common type of extinguisher for type BC
Carbon Dioxide and Halon
what is the most common all-purpose extinguisher
Dry Chemical Extinguishers
Fire types that should be handled only by trained personnel
Class D and E fire
Work related and include strain due to repeated positions
Ergonomic Hazards
hazards due to extremely low temperatures
Cryogenic hazards
hazards that include centrifuges, refrigerators, autoclaves, homogenizers, and glasswares
Mechanical Hazards
Hazards that include running in rooms and hallways and wearing dangling jewelries
Physical Hazards