EOH 353 - Global Perspective of Environmental Health » Spring 2020 » Midterm Exam
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Question #1
Which of the following is one of the agents responsible for many publicized outbreaks of gastrointestinal illness on cruise ships?
A.
Shigella
B.
Hepatitis A virus
C.
Novovirus
D.
Salmonella
E.
None of the above
Question #2
An internal overdose refers to the
A.
dose acquired by contact with contaminated environmental sources
B.
quantity of a substance that is administered
C.
amount of a substance that is available to the internal organs of the body.
D.
portion of a substance that becomes internalized in the body
E.
quantity of a substance that is administered
F.
None of the above
Question #3
Which of the following is not an example of an incidental additive?
A.
Insect parts
B.
Chemicals from food wrappers
C.
Stored DDT in tissues of cattle
D.
Vitamins to improve nutrition
E.
Residue from spraying crops
Question #4
According to Healthy People 2020, which of the following is not an environmental objective for outdoor air quality?
A.
Reducing the number of days the AQI exceeds 100, weighted by population and AQI; increase the use of alternative modes of transportation for work; and reducing air toxic emissions to decrease the risk of adverse health effects
B.
Reducing air toxic emissions to decrease the risk of adverse health effects
C.
Increasing use of alternative modes of transportation for work
D.
Increasing the production of clean coal as an energy source
E.
Reducing the number of days the AQI exceeds 100, weighted by population and AQI
Question #5
Chemical hazards that may be present in food include:
A.
heavy metals
B.
marine toxins
C.
Mushroom toxins
D.
monosodium glutamate
E.
All of the above
Question #6
The existence of a dose-response relationship maybe used to establish which of the following kinds of information
A.
Minimum dosages needed to produce a biological effect
B.
Causal association between a toxin and biological effects
C.
Rate of accumulation of harmful effects
D.
both causal association between a toxin and biological effects and minimum dosages needed to produce a biological effect
E.
All of the above
Question #7
A justification for the hazard analysis of critical control points is that:
A.
chemical additives are the most dangerous food associated health hazards at present
B.
health hazards can be introduced at any point from harvest to consumption
C.
food-associated illness is almost exclusively due to Salmonella
D.
poor canning practices cause the greatest number of fod-related intoxications
E.
None of the above
Question #8
The environment plays a role in human health through associations with which of the following?
A.
Acute conditions
B.
Allergic responses
C.
Disability
D.
Chronic disease
E.
All of the above
Question #9
The poisonous substance in Amanita phalloides ("death cap" mushroom) is an example of a(n)
A.
toxicant
B.
poison caused by bacterial activity
C.
Toxin
D.
anthropogenic form of poison
E.
None of the above
Question #10
What does the abbreviation GRAS stand for?
A.
Generally Recognized as Safe Chemical Additives
B.
Greatly Researched Additives that are Safe
C.
Gently Resolved as Suitable Chemicals
D.
Grossly Reported As Sanitary
E.
None of the above
Question #11
Which of the following is an interpretation of the Delaney Clause
A.
The Food Additives Amendment allows low levels of substances that cause cancer in animals but not in human beings
B.
The primary responsibility for safety of food additives rests with the local boards of health
C.
Carcinogenic chemicals are not permitted in food in any amounts
D.
Toxic chemicals are not permitted in food in any amounts
E.
None of the above
Question #12
When used as a food additive, nitrates, and nitrites
A.
have been demonstrated to have carcinogenic properties by themselves
B.
may react with other substances to form carcinogens
C.
are a significant cause of carboxyhemoglobin
D.
None of the above
E.
All of the above
Question #13
Food additives are used to achieve all of the following except:
A.
make the food more attractive
B.
keep food free from rodent filth
C.
protect the nutritional quality of foods
D.
provide effective protection from microbial growth in storage
E.
keep certain products such as table salt from caking
Question #14
In comparison with the general population, workers may receive exposure to toxic chemicals that are:
A.
more likely to be associated with acute effects than long term effects
B.
at higher concentrations for much longer time periods
C.
confined to a single time episode
D.
at lower levels for shorter time periods
E.
None of the above
Question #15
Reasons for the potential spread of avian influenza include which of the following?
A.
Demonstrated person to person transmission
B.
Intensive animal husbandry practices
C.
Restriction of international travel
D.
Both restriction of international travel and demonstrated person to person transmission
E.
All of the above
Question #16
The advantages of genetically modified foods do not include:
A.
development of herbicide resistance
B.
reduction in genetic diversity
C.
increased nutritional value of foods
D.
increased resistance of food animals to disease
E.
increased crop yields
Question #17
Which of the following abbreviations is used to describe toxic effects of chemicals?
A.
LD50
B.
TFR
C.
TLV
D.
VOCs
E.
AQI
Question #18
Compared with adults, children represent a group that is especially vulnerable to environmental hazards for the following reasons, except:
A.
They may inadvertenly ingest toxic substances
B.
They maybe exposed more often to toxins in outdoor air
C.
They spend more time indoors
D.
Their immune system are still developing
E.
They maybe exposed more often to toxins in the soil
Question #19
With respect to the policy cycle, what problem(s) maybe encountered in the agenda setting stage?
A.
Lack of sound scientific data
B.
Lack of information on risk; lack of coordination
C.
Inability to coordinate and assess research information
D.
Lack of governmental support
E.
Poorly defined problems
Question #20
With respect to the policy cycle, what problem(s) maybe encountered in the assessment/evaluation stage?
A.
Lack of sound scientific data
B.
Poorly defined problems
C.
Lack of government support
D.
Lack of information on risk; lack of coordination
E.
Inability to coordinate and assess research information
Question #21
With respect to the policy cycle, what problem(s) maybe encountered in the problem definition stage?
A.
Lack of information on risk; lack of coordination
B.
Poorly defined problems
C.
Lack of sound scientific data
D.
Lack of government support
E.
inability to coordinate and assess research information
Question #22
What problem(s) maybe encountered in the policy implementation stage?
A.
Lack of information on risk; lack of coordination
B.
inability to coordinate and assess research information
C.
Lack of government support
D.
Lack of sound scientific data
E.
Poorly defined problems
Question #23
What problem(s) maybe encountered in the policy establishment stage?
A.
Poorly defined problems
B.
Lack of information on risk; lack of coordination
C.
Lack of government support
D.
Lack of sound scientific data
E.
inability to coordinate and assess research information
Question #24
How can the built environment encourage healthy lifestyles?
A.
By encouraging the use of public transportation
B.
By encouraging people to walk more
C.
By encouraging the people to walk more, encouraging the use of public transporation, and colocating businesses and residences
D.
By causing greater use of private automobiles
E.
By colocating businesses and residences
Question #25
Which of the following describes the precautionary principles?
A.
Preventive measures should be taken when an activity raises threats of harm to the environment
B.
A strong, just, and wealthy society can be consistent with a clean environment
C.
A polluter should bear the expense of carrying out pollution prevention and control measures
D.
all people in society should receive equal treatment with respect to environmental laws and policies
E.
None of the above
Question #26
Which of the following describes the principle of environmental sustainability?
A.
A strong, just, and wealthy society can be consistent with a clean environment
B.
A polluter should bear the expense of carrying out pollution prevention and control measures
C.
all people in society should receive equal treatment with respect to environmental laws and policies
D.
Preventive measures should be taken when an activity raises threats of harm to the environment
E.
None of the above
Question #27
Which of the following describes the polluter-pays principle?
A.
all people in society should receive equal treatment with respect to environmental laws and policies
B.
A strong, just, and wealthy society can be consistent with a clean environment
C.
A polluter should bear the expense of carrying out pollution prevention and control measures
D.
Preventive measures should be taken when an activity raises threats of harm to the environment
E.
None of the above
Question #28
Which of the following statements about zoonotic diseases is most likely to be true?
A.
Children younger than 5 maybe at reduced risk for morbidity from zoonotic diseases
B.
Immunocompromised persons maybe at reduced risk for morbidity from zoonotic diseases
C.
An animal infected with zoonotic agentmaybe free from symptoms
D.
A zoonotic disease is always associated with transmission by a vector
E.
None of the above
Question #29
Methods for transmissin of zoonotic pathogens include?
A.
ingestion of contaminated foods
B.
contact with the skin
C.
bite or scratch of an animal
D.
direct inhalation
E.
All of the above
Question #30
Examples of disease vectors are:
A.
ticks
B.
mosquitoes
C.
sand flies
D.
rats and mice
E.
All of the above
Question #31
Which of the following is an example of a vector-borne disease?
A.
The "black death"
B.
Q-fever
C.
Trichinellosis
D.
Measles
E.
None of the above
Question #32
The most deadly form of malaria is caused by
A.
P. vivax
B.
P. ovale
C.
P.falciparum
D.
P. malariae
E.
None of the above
Question #33
Resurgence of malaria has been attributed to :
A.
evidence of increased person - to - person transmission
B.
both discontinuance of DDT spraying and Mosquitoes' development of resistance
C.
discontinuance of DDT spraying
D.
discontinuance of DDT spraying, mosquitoes' development of resistance, and evidence of increased person to person transmission
E.
mosquitoes' development of resistance
Question #34
The causative agent for malaria is a type of
A.
bacterium
B.
rickettsial agent
C.
virus
D.
protozoa
E.
prion
Question #35
The causative agent for leishmaniasis is a type of
A.
virus
B.
prion
C.
bacterium
D.
rickettsial agent
E.
protozoa
Question #36
Minimata disease was associated with ingestion of seafood tainted with which of the following
A.
Lead
B.
Mercury
C.
Arsenic
D.
Cadmium
E.
None of the above
Question #37
Itai-itai disease was a form of poisoning associated with ingestion of which of the following?
A.
Arsenic
B.
Cadmium
C.
Mercury
D.
Lead
E.
None of the above
Question #38
Which of the following metal is not classified as a major toxic metal with multiple effects?
A.
Mercury
B.
Berylium
C.
Chromium
D.
Silver
E.
Arsenic
Question #39
Possible methods for exposure to metals include which of the following?
A.
Inhalatin of dusts
B.
Skin contact with dusts
C.
Ingestion
D.
Inhalation of metal fumes
E.
All of the above
Question #40
Which of the following statements about heavy metal is true?
A.
Their specific gravity exceeds that of water by five or more times
B.
All of them are toxic even at trace levels
C.
None of them is necessary to sustain life
D.
None of the above
E.
All of the above
Question #41
Bioaccumulation (biomagnification) of heavy metal is a particular hazard associated with which of the following?
A.
Manganese
B.
Copper
C.
Iron
D.
Mercury
E.
None of the above
Question #42
The symptoms of long-term exposure to lower levels of toxic metals include which of the following
A.
Chronic illness effects
B.
convulsions
C.
Vomiting and stomach pain
D.
Sudden onset of headaches
E.
All of the above
Question #43
For fetuses, infants, and children, the hazards of heavy meatls include:
A.
some forms of cancer
B.
brain damage
C.
damage to internal organs
D.
All of these are correct
E.
impairment of physical and mental development
Question #44
On Airs, Waters, and Places was significant because it:
A.
described the unsafe and hazardous working environment
B.
identified an environmental cause of cancer
C.
described the toxic properties of sulfur and zinc
D.
emphasized the role of the environment in people's health
E.
None of the above
Question #45
Lemuel Shattuck's proposals set forth in the Report of the Sanitary Conditions of Massachusetts
A.
ultimately were adopted by public health departments and are now in use
B.
argued for the creation of state health departments
C.
were extremely innovative for their time
D.
described how environmental sanitation affected heatlh
E.
All of the above
Question #46
Affluent Romans may have suffered from chronic lead poisoning from lead pipes used to carry the water supply
A.
FALSE
B.
TRUE
Question #47
Cholera outbreaks occurred in New York City during the mid 1800s
A.
TRUE
B.
FALSE
Question #48
In The Jungle (1904) Upton Sinclair described the deplorable conditions in the meat processing industry
A.
TRUE
B.
FALSE
Question #49
Rachel Carson published Silent Spring to highlight the dangers of pesticide
A.
TRUE
B.
FALSE
Question #50
A contemporary environmental issue is the release of greenhouse gases and their possible contribution to global warming
A.
FALSE
B.
TRUE
Question #51
Van Leeuwenhoek identified the yellow fever virus during the early 1900s
A.
FALSE
B.
TRUE
Question #52
The fatal 1930 incident in Muese Valley, Belgium was associated with leakage of toxic chemicals from a former dump site
A.
TRUE
B.
FALSE
Question #53
The legal profession has virtually no relevance to the environmental health field
A.
FALSE
B.
TRUE
Question #54
Which of the following is an example of in vitro testing for toxicology
A.
Dose-response assessments in human populations
B.
Experiments with cells derived from human sources
C.
Studies of animals exposed to toxins
D.
Experiments with volunteers who have had unintentional exposures
E.
Experiments with normal volunteers
Question #55
All of the following statements about thalidomide are true, except:
A.
it was used to treat morning sickness during pregnancy
B.
it was developed before the advent of rigorous clnical trials
C.
it was associated with heart problems among adults
D.
it was a potent teratogen
Question #56
Which term indicates that the combined effect of exposures to two or more chemicals that is greater that the sum of heir individual effects?
A.
Synergistic
B.
Additive
C.
Antagonistic
D.
Coalitve
Question #57
When several agents that have no known toxic effects interact to produce a toxic effect, it is characteristic of what type of interaction?
A.
Potentiation
B.
Coalitive
C.
Synergistic
D.
Antagonism
Question #58
Which of the following refers to toxic substances that are man-made or resultfrom human (anthropogenic) activity?
A.
Toxin
B.
Teratogen
C.
Poison
D.
Toxicant
Question #59
Normally, which of the following refers to a beneficial effect of a substance, such as relief of pain or may stand for a harmful effect, such as paralysis?
A.
Internal dose
B.
Absorbed dose
C.
Effective dose
D.
Exposure dose
Question #60
Which of the following is the measurement of the relationship between the amount of exposure and the occurrence of the unwanted health effects?
A.
Hazard assessment
B.
Dose-response assessment
C.
Exposure assessment
D.
Risk assessment
Question #61
The quality of data from what type of assessment determines the accuracy of risk assessments and therefore is a limiting factor in the risk assessment process?
A.
Hazard assessment
B.
Exposure assessment
C.
Dose-response assessment
D.
Ecologic assessment
Question #62
In the "real world" of environment exposures, most exposures are due to muliple chemicals rather than to a single chemical.
A.
FALSE
B.
TRUE
Question #63
When highly controlled and standardized conditions are desired, human subjects are used in toxicologic testing.
A.
FALSE
B.
TRUE
Question #64
In the United States, what agency is responsible for protecting human health and safeguarding the natural environment, including air, land and water?
A.
Environmental Protection Aency (EPA)
B.
Agency for Toxic Substances and Disease Registry (ATSDR)
C.
National Institute for Occupational Safety and Health (NIOSH)
D.
National Institute of Environmental Health Sciences (NIEHS)
Question #65
What piece of legislation gave the Environmental Protection Agency (EPA) the power to seek out those parties responsible for any release and assure their cooperation in the cleanup?
A.
Resource Conservation and Recovery Act
B.
Comprehensive Environmental Response, Compensation, and Liability Act
C.
Toxic Substances Control Act
D.
National Environmental Policy Act
Question #66
The term cap and trade is used to describe a method for reducing greenhouse gas emissions from facilities such as electric generating plants.
A.
FALSE
B.
TRUE
Question #67
When the nature of the risks associated with an environmental hazard or toxin is uncertain, planners are left in quandary about what aspects of the exposure require policy interventions.
A.
FALSE
B.
TRUE
Question #68
Despite medical advances, infectious diseases are taking an increasing toll in the developed world.
A.
FALSE
B.
TRUE
Question #69
Which toxic heavy metal is associated with melanosis, a dermatologic condition that can cause the darkening of the skin of the entire body?
A.
Beryllium
B.
Arsenic
C.
Mercury
D.
Cadmium
Question #70
Itai-itai disease, which began occurring in the Jinzu River basin in japan as early as 1912, is one of the conditions attributed to which toxic metal?
A.
Arsenic
B.
Cadmium
C.
Mercury
D.
Beryllium
Question #71
What metal is believed to play a role in reducing the occurrence of common infection and is theorized to be necessary for children's growth and for maintaining the health of pregnant women?
A.
Nickel
B.
Zinc
C.
Iron
D.
Copper
Question #72
Contact with high concentrations of toxic metals is most likely to occur in an occupational setting.
A.
FALSE
B.
TRUE
Question #73
Less developed countries increasingly are being selected as the dumping grounds for electronic waste, which is scavenged by unwitting individuals who are not aware of the hazardous naure of this waste.
A.
FALSE
B.
TRUE
Question #74
The term abortive human rabies refers to a case that:
A.
None of these is correct.
B.
was caused by Francisella tularensis
C.
also experienced comorbidity with monkeypox
D.
recovered without receiving intensive care
E.
required an abortion in oder to survive
Question #75
In what sense is influenza a zoonotic diseaase?
A.
It has animal reservoirs,especially birds and swine
B.
The main reservoir is wild carnivores
C.
None of these is correct.
D.
It is transmitted frequently by contact with wool
E.
It is transmitted by "stealth" arthropods
Question #76
Methods for the conrol of mosquito-borne diseases Include:
A.
removing standing water around the home
B.
monitoring the presence of viruses in sentinel chickens and birds
C.
wearing long clothing
D.
use of mosquito-eating fish
E.
All of these are correct
Question #77
Which of the following is true about rabies?
A.
Outside the United States, the most common vector is Gambian rats.
B.
Postexposure prophylaxis has prevented human rabies successfully.
C.
The disease has a low medium fatality rate.
Question #78
During the sporegenic cycle, the malaria parasite is transferred to the human host when the mosquito takes a blood meal.
A.
FALSE
B.
TRUE
Question #79
Amastigotes are an extracellular form of the organism that has flagella, whereas promastigotes are nonflagellated intracellular forms.
A.
TRUE
B.
FALSE
Question #80
Which of he following indicates he ocurrence of a similar illness among the two or more people that an investigation linked o consumption of a common meal or food items?
A.
Foodborne outbreak
B.
Foodborne intoxication
C.
Foodborne infection
D.
Foodborne disease
Question #81
Just one case of what foodborne illness is considered an outbreak?
A.
Trichinellosis
B.
Listeriosis
C.
Salmonellosis
D.
Botulism
Question #82
What organism can thrive in an environment that has a heavy concentration of salt or sugar, an environment in which most other bacteria are unable to tolerate?
A.
Clostridium botulinum
B.
Escherichia coli
C.
Salmonella typhi
D.
Staphylococcus aureus
Question #83
Foodborne intoxications are included by infectious agents, such as some bacteria,that cause foodborne illness directly.
A.
TRUE
B.
FALSE
Question #84
The development of antimicrobial-resistant Salmonella has been tied to the administration of antibiotics to animals consumed for food.
A.
FALSE
B.
TRUE
Question #85
In a case-control sudy, cases are those wo have the outcome of interest and the conrols are those who do not.
A.
FALSE
B.
TRUE
Question #86
According to Hill's Criteria of Causality,what criterion suggests that the cause and effect interpretation of our data should not seriously conflict with the generally known facts of the natural history and biology of disease?
A.
Temporality
B.
Specificity
C.
Plausibility
D.
Coherence
Question #87
The use of what measure as a study endpoint has several advantages, including the fact that it may be relevant to agents that have a subtle effect over a long time period?
A.
Mortality
B.
Incidence
C.
Morbidity
D.
Prevalence
Question #88
What term is normally used to describe the aggregation of relatively uncommon events or diseases?
A.
Grouping
B.
Clustering
C.
Sampling
D.
Randomizing
Question #89
Which of the following is a study in which the units of analysis are populations or groups of people rather than individuals?
A.
Ecologic studies
B.
Case series study
C.
Cross-sectional studies
D.
Case-conrol studies
Question #90
What type of study design classifies subjecs according to their exposure to a factor of interest and then observes them over time to document the accurence of new cases or other health events?
A.
Cohort study
B.
Cross-sectional study
C.
Case-conrol study
D.
Case series study
Question #91
An ecologic study is one that examines a group as the unit of analysis.
A.
TRUE
B.
FALSE
Question #92
Used in cohort sudies, the relative risk is a measure of the strength os association between a possible risk factor and a disease.
A.
FALSE
B.
TRUE
Question #93
The Texas Sharpshooter Effect illustrates:
A.
one cause of spurious or chance clustering
B.
a description of disease according to etiologic factors
C.
None of these is correct.
D.
a description of disease according to person variables
E.
a new insect pest that is invading the southwest.
Question #94
Which of the following activities characterizes the epidemiologic approach (as opposed to the clinical approach)?
A.
Diagnosis of a disease in a sinlge individual
B.
Study of cancer occurrence in populations
C.
Description of a single individual's symptoms
D.
Treatment of a patient with lung cancer
E.
None of these is correct.
Question #95
A national survey of asthma conducted on May 1, 2012, obtained the following results for the state of Oklahoma: X = The number of residents with asthma. Y=The population of the state on June 30, 2012. and all members of the population were considered at risk. Z=The number of new cases of asthma diagnosed during 2012. The incidence rate of asthma during 2012 (per 100,000) would be expressed as:
A.
(Z/Y) x 100,000
B.
(Z/X) x 100,000
C.
(X/Y) x 100,000
D.
(X/Z) x 100,000
E.
None of these is correct.
Question #96
The risk of acquiring a given disease during a time period is best determined by which of the following?
A.
A spot map that records all cases of the disease in the past year
B.
The incidence rate for that disease in a given period of time
C.
The number of deaths due to that disease during a given year
D.
The case fatality rate (CFR) from that disease in the 0 to 4 age group
E.
The prevalence for that disease during the past year
Question #97
Which of the following historical figures was among the first to expound on the role of environmental factors in causing diseases?
A.
Hippocrates
B.
Sir Percival Pott
C.
John Snow
D.
K.J. Rothman
E.
Socrates
Question #98
Prevalence measures aid in:
A.
assessing variations in disease occurrence
B.
the development of hypothesses
C.
determining the risk of disease
D.
assessing variations in disease occurrence, the development of hypothesses, and describing the scope of health problems
E.
describing the scope of health problems
Question #99
Which of the following is the most deadly type of malaria that may produce kidney failure, seizures, mental confusion, coma, and ultimately death?
A.
Plasmodium ovale
B.
Plasmodium falciparum
C.
Plasmodium malariae
D.
Plasmodium vivax
Question #100
The exposé written by what man was instrumental in the passage of the first Food and Drug Act that was instituted in the United States in 1906?
A.
Walter Reed
B.
Upton Sinclair
C.
Henry David Thoreau
D.
John Snow
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