Weber State

In our society, the acceptable rate of death due to chemical exposure at work is:

1 death per 100,000 people

List three different ways in which you can get burned when using an autoclave. BE SPECIFIC! 1. 2. 3.

1. Avoid bumping containers, as they may boil over and burn you 2.Allow liquids to settle (stop boiling)before moving flasks 3.Avoid touching insides of autoclave, inside of door, or any containers to prevent burns

List three standard microbiological practices that you, as a student, would be expected to follow when working in a classroom microbiology lab. 1. 2. 3.

1. Wash hands before and after, wear gloves and lab coat. 2. Before and after, disinfecting the stable with sterile spray. 3. Throw away used agar in the biohazard bag, as well broken glass in the broken glass container.

When storing a chemical, information regarding chemical incompatibilities can be found in Section __?__ of the chemical's Safety data Sheet (SDS).

7

In order for the herd effect/herd factor to protect a population from a disease outbreak, approximately ___?___ of the population must be immunized.

95%

Match the following Fire classes with their Fuel Source

A: Ordinary combustible materials (wood, paper, etc) B: Flammable liquids C: Electrical equipment D: Combustible metals K: Cooking media (kitchen, oil, grease)

As seen in the posted YouTube video, when calcium carbide is mixed with water, a flammable gas is produced. This gas is:

Acetylene

Acute Effect, Synergistic Effect, Cumulative Effect

Acute: Death within 4 minutes from an allergic response to a bee sting. Synergistic: Liver damage from combining acetaminophen (Tylenol, etc) with ALCOHOL Cumulative: Decreased mental ability in a child who regularly eats fish with a high mercury content.

Which of the following is/are considered a biohazard?

All of the choices Bacteria, Fungus, Virus, Bacteria and Fungus.

Internal pressure must read "zero" before opening:

An autoclave

The use of a hand sanitizer is specifically a form of:

Antisepsis

The warning sign pictured above means?

Biohazard

A broken test tube that is not contaminated should be disposed of in a:

Broken glass discard box

It is important to have boys and girls vaccinated against the HPV (human papillomavirus) before they become sexually active because this vaccine can help prevent:

Certain types of cervical and penile cancer

The written document that outlines employee training, proper lab safety protocols, employee health monitoring requirements, and names a Chemical Hygiene Officer is called a(n):

Chemical Hygiene Plan

Risk ranking is also known as ?

Comparative Risk

The container pictured above is used for the disposal of ?

Contaminated Petri/plates/dishes

If you have a kitchen grease fire in a pan on a stove, you should turn off the heat source and:

Cover the pan with a lid or a damp towel

The study of the incidence of disease within a population is

Epidemiology

As seen in the YouTube video, alkali metals, such as sodium and cesium, can react intensely with water. These types of reactions are:

Exothermic

A dust fire can occur when fine dust particles are exposed to water. True or False

False

A self-closing door with locks is required for a Biosafety Level 1 lab. True or False

False

Acids and bases are both classified as corrosives, so they can be stored together on the same shelf in a corrosion-proof cabinet. True or False

False

All natural products (from plants, mushrooms, etc.) are safe because they are normally found in nature. True or False

False

An ABC fire extinguisher can also be used on type D and type K fires.

False

Autism has been scientifically shown to be linked to childhood vaccines. True or False

False

In Utah, the only ways that a parent can get a vaccine exemption fro their child is for religious or a specific medical condition.

False

Jonas Salk developed the first vaccine against smallpox. True or False

False

Threshold Limit Values (TLVs) set by the American Conference of Government Industrial Hygienists (ACGIH) are the legal limits/standards for chemical exposure in the workplace. True or False

False

University labs are not subject to OSHA regulations? True or False?

False

When a strong oxidizer (such as potassium permanganate) is mixed with an organic compound (such as glycerin), it will start a fire. True or False

False

When using a fire extinguisher to put out a fire, the spray should be aimed at the top and middle of the fire. True or False

False

In the ChemAlert color coding system for storing chemicals, red signifies toxic? True or False

False Red: Flammable Blue: Health Hazard (toxics) Yellow: Reactive and Oxidizing Reagents

"The 10 Worst Lab Accidents" posted on Canvas highlighted a chemistry lab accident where nickel hydrazine perchlorate exploded when:

Friction was applied

Laminar flow hoods and Biosafety cabinets filter air through:

HEPA filters

Which of the following is a non-transmissible disease?

Heart Disease

List the three parts of the fire triangle.

Heat, Fuel and Oxidizing Agent (Oxygen)

Healthcare workers that may be exposed to blood-borne pathogens should be vaccinated when possible. For which of the following pathogens is a vaccine available?

Hepatitis B

Match the following toxin category with its appropriate target organ/system: Hepatotoxin, Pulmonary, Dermal, Nephrotoxin, Neurotoxins.

Hepatotoxins: Liver Pulmonary: Lungs Dermal: Skin Nephrotoxins: Kidney Neurotoxins: Nervous system tissues.

"The 10 Worst Lab Accidents" posted on Canvas highlighted an accident where a Physics student working alone at night in a machine shop was killed when:

Her hair got caught in a lathe, strangling her

Hydrofluoric acid is commonly used in geology as a way to extract microscopic fossils from sedimentary rock. The rock dissolves in the acid, leaving the acid-insoluble fossils behind. This can cause burns if spilled on the skin. Unless gluconate gel is applied to these burns, the high dose of fluoride could cause:

Hypocalcemia

Test tubes should NOT be capped tightly when being put:

In an Autoclave

Prior to removal from the building, dead animals and animal organs used in labs or research must be:

Incinerated

The most common occupational route of exposure is:

Inhalation

So far, the Zika virus could be classified as a:

Mutagenic Agent and Teratogenic a and b

The AMES test specifically tests for:

Mutagenicity

Five groups of ten mice each were exposed to different concentrations of Chemical X for 8 hours. After eight hours, the number of dead mice per group was counted and plotted on a graph. What is the DEPENDENT variable on the graph? OR What is the INDEPENDENT variable on the graph?

Number of dead mice. DEPENDENT Independent (concentration of Chemical X)

OSHA stands for?

Occupational Safety and Health Administration

List each step in the P.A.S.S. method of fire extinguisher use and DESCRIBE each step.

P: Pull the pin, remove the locking pin on the handler or lever. A: Aim low, direct the hose nozzle at the base of the fire, hit the base of the fire, do not aim at the flames. S: Squeeze the lever, to discharge the extinguishing agent, release when done. S: Sweep the nozzle,side to side at the base of the fire, keep aiming until fire is out. Never turn your back to the fires.

In the video., "Practicing Safe Science", several incidents of severe skin burns occurring in molecular biology labs were described. These burns were all due to:

Phenol

What surprised you most when you used a fire extinguisher to "put out a fire"?

Pulling the pin was hard at first, but when people started using it more, it was easier. Squeezing and sweeping was pretty easy to do.

Which of the following is a cultural hazard?

Skiing

A chemical or agent that causes birth defects is specifically called a(n):

Teratogen

What is the meaning of the following laboratory warning sign?

Toxic (skull-and-crossbones symbol (☠))

Drinking an amount of water above a certain dose can kill a person.

True

Hepatitis B and C are blood-borne pathogens that can be contracted by a needle-stick. True or False

True

Pyrophoric Materials can ignite when exposed to air ?

True

The flash point for a flammable substance is lower than the flash point of a combustible substance. True or False

True

The subjective way in which the public views a risk is known as risk perception. True or False

True

Using a biological safety cabinet/hood is an example of a primary barrier. True or False

True

When discarding a used pipette in a plastic benchtop pipette discard bin, the pipette should be put in the bin:

With the pipette tip down.

Which of the following is believed to cause microcephaly?

Zika virus

The general public perceives a greater risk from a hazard when it:

is involuntarily thrust upon them

The risk of getting killed while riding a motorcycle is about 1 in 1,500. The risk of dying from smoking is about 1 in 750. It is:

twice as likely to die from smoking than it is to die on a motorcycle