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.   Novovirus
B.   Salmonella
C.   Shigella
D.   Hepatitis A virus
E.   None of the above
Question #2
An internal overdose refers to the
A.   quantity of a substance that is administered
B.   portion of a substance that becomes internalized in the body
C.   quantity of a substance that is administered
D.   amount of a substance that is available to the internal organs of the body.
E.   dose acquired by contact with contaminated environmental sources
F.   None of the above
Question #3
Which of the following is not an example of an incidental additive?
A.   Vitamins to improve nutrition
B.   Residue from spraying crops
C.   Chemicals from food wrappers
D.   Stored DDT in tissues of cattle
E.   Insect parts
Question #4
According to Healthy People 2020, which of the following is not an environmental objective for outdoor air quality?
A.   Increasing the production of clean coal as an energy source
B.   Reducing the number of days the AQI exceeds 100, weighted by population and AQI
C.   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
D.   Reducing air toxic emissions to decrease the risk of adverse health effects
E.   Increasing use of alternative modes of transportation for work
Question #5
Chemical hazards that may be present in food include:
A.   marine toxins
B.   heavy metals
C.   monosodium glutamate
D.   Mushroom toxins
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.   both causal association between a toxin and biological effects and minimum dosages needed to produce a biological effect
B.   Rate of accumulation of harmful effects
C.   Causal association between a toxin and biological effects
D.   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.   health hazards can be introduced at any point from harvest to consumption
B.   chemical additives are the most dangerous food associated health hazards at present
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.   Disability
B.   Allergic responses
C.   Chronic disease
D.   Acute conditions
E.   All of the above
Question #9
The poisonous substance in Amanita phalloides ("death cap" mushroom) is an example of a(n)
A.   Toxin
B.   anthropogenic form of poison
C.   toxicant
D.   poison caused by bacterial activity
E.   None of the above
Question #10
What does the abbreviation GRAS stand for?
A.   Gently Resolved as Suitable Chemicals
B.   Grossly Reported As Sanitary
C.   Generally Recognized as Safe Chemical Additives
D.   Greatly Researched Additives that are Safe
E.   None of the above
Question #11
Which of the following is an interpretation of the Delaney Clause
A.   The primary responsibility for safety of food additives rests with the local boards of health
B.   The Food Additives Amendment allows low levels of substances that cause cancer in animals but not in human beings
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.   protect the nutritional quality of foods
B.   keep food free from rodent filth
C.   keep certain products such as table salt from caking
D.   make the food more attractive
E.   provide effective protection from microbial growth in storage
Question #14
In comparison with the general population, workers may receive exposure to toxic chemicals that are:
A.   at lower levels for shorter time periods
B.   more likely to be associated with acute effects than long term effects
C.   at higher concentrations for much longer time periods
D.   confined to a single time episode
E.   None of the above
Question #15
Reasons for the potential spread of avian influenza include which of the following?
A.   Restriction of international travel
B.   Intensive animal husbandry practices
C.   Demonstrated person to person transmission
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.   increased resistance of food animals to disease
B.   increased crop yields
C.   development of herbicide resistance
D.   reduction in genetic diversity
E.   increased nutritional value of foods
Question #17
Which of the following abbreviations is used to describe toxic effects of chemicals?
A.   TFR
B.   TLV
C.   LD50
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.   Their immune system are still developing
B.   They maybe exposed more often to toxins in outdoor air
C.   They may inadvertenly ingest toxic substances
D.   They maybe exposed more often to toxins in the soil
E.   They spend more time indoors
Question #19
With respect to the policy cycle, what problem(s) maybe encountered in the agenda setting stage?
A.   Lack of governmental support
B.   Inability to coordinate and assess research information
C.   Lack of information on risk; lack of coordination
D.   Poorly defined problems
E.   Lack of sound scientific data
Question #20
With respect to the policy cycle, what problem(s) maybe encountered in the assessment/evaluation stage?
A.   Inability to coordinate and assess research information
B.   Lack of government support
C.   Poorly defined problems
D.   Lack of sound scientific data
E.   Lack of information on risk; lack of coordination
Question #21
With respect to the policy cycle, what problem(s) maybe encountered in the problem definition stage?
A.   inability to coordinate and assess research information
B.   Poorly defined problems
C.   Lack of information on risk; lack of coordination
D.   Lack of sound scientific data
E.   Lack of government support
Question #22
What problem(s) maybe encountered in the policy implementation stage?
A.   inability to coordinate and assess research information
B.   Lack of sound scientific data
C.   Lack of government support
D.   Poorly defined problems
E.   Lack of information on risk; lack of coordination
Question #23
What problem(s) maybe encountered in the policy establishment stage?
A.   Lack of information on risk; lack of coordination
B.   Poorly defined problems
C.   inability to coordinate and assess research information
D.   Lack of sound scientific data
E.   Lack of government support
Question #24
How can the built environment encourage healthy lifestyles?
A.   By encouraging people to walk more
B.   By encouraging the use of public transportation
C.   By colocating businesses and residences
D.   By encouraging the people to walk more, encouraging the use of public transporation, and colocating businesses and residences
E.   By causing greater use of private automobiles
Question #25
Which of the following describes the precautionary principles?
A.   A polluter should bear the expense of carrying out pollution prevention and control measures
B.   Preventive measures should be taken when an activity raises threats of harm to the environment
C.   A strong, just, and wealthy society can be consistent with a clean environment
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.   all people in society should receive equal treatment with respect to environmental laws and policies
C.   Preventive measures should be taken when an activity raises threats of harm to the environment
D.   A polluter should bear the expense of carrying out pollution prevention and control measures
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.   Preventive measures should be taken when an activity raises threats of harm to the environment
D.   A polluter should bear the expense of carrying out pollution prevention and control measures
E.   None of the above
Question #28
Which of the following statements about zoonotic diseases is most likely to be true?
A.   Immunocompromised persons maybe at reduced risk for morbidity from zoonotic diseases
B.   Children younger than 5 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.   direct inhalation
D.   bite or scratch of an animal
E.   All of the above
Question #30
Examples of disease vectors are:
A.   ticks
B.   sand flies
C.   rats and mice
D.   mosquitoes
E.   All of the above
Question #31
Which of the following is an example of a vector-borne disease?
A.   The "black death"
B.   Trichinellosis
C.   Q-fever
D.   Measles
E.   None of the above
Question #32
The most deadly form of malaria is caused by
A.   P.falciparum
B.   P. ovale
C.   P. malariae
D.   P. vivax
E.   None of the above
Question #33
Resurgence of malaria has been attributed to :
A.   discontinuance of DDT spraying, mosquitoes' development of resistance, and evidence of increased person to person transmission
B.   evidence of increased person - to - person transmission
C.   both discontinuance of DDT spraying and Mosquitoes' development of resistance
D.   mosquitoes' development of resistance
E.   discontinuance of DDT spraying
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.   rickettsial agent
B.   protozoa
C.   prion
D.   bacterium
E.   virus
Question #36
Minimata disease was associated with ingestion of seafood tainted with which of the following
A.   Arsenic
B.   Cadmium
C.   Mercury
D.   Lead
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.   Mercury
C.   Lead
D.   Cadmium
E.   None of the above
Question #38
Which of the following metal is not classified as a major toxic metal with multiple effects?
A.   Chromium
B.   Berylium
C.   Mercury
D.   Arsenic
E.   Silver
Question #39
Possible methods for exposure to metals include which of the following?
A.   Inhalation of metal fumes
B.   Ingestion
C.   Skin contact with dusts
D.   Inhalatin of dusts
E.   All of the above
Question #40
Which of the following statements about heavy metal is true?
A.   None of them is necessary to sustain life
B.   All of them are toxic even at trace levels
C.   Their specific gravity exceeds that of water by five or more times
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.   Mercury
C.   Iron
D.   Copper
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.   Vomiting and stomach pain
C.   convulsions
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.   damage to internal organs
C.   All of these are correct
D.   impairment of physical and mental development
E.   brain damage
Question #44
On Airs, Waters, and Places was significant because it:
A.   identified an environmental cause of cancer
B.   described the toxic properties of sulfur and zinc
C.   emphasized the role of the environment in people's health
D.   described the unsafe and hazardous working environment
E.   None of the above
Question #45
Lemuel Shattuck's proposals set forth in the Report of the Sanitary Conditions of Massachusetts
A.   were extremely innovative for their time
B.   ultimately were adopted by public health departments and are now in use
C.   argued for the creation of state health departments
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.   FALSE
B.   TRUE
Question #48
In The Jungle (1904) Upton Sinclair described the deplorable conditions in the meat processing industry
A.   FALSE
B.   TRUE
Question #49
Rachel Carson published Silent Spring to highlight the dangers of pesticide
A.   FALSE
B.   TRUE
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.   TRUE
B.   FALSE
Question #52
The fatal 1930 incident in Muese Valley, Belgium was associated with leakage of toxic chemicals from a former dump site
A.   FALSE
B.   TRUE
Question #53
The legal profession has virtually no relevance to the environmental health field
A.   TRUE
B.   FALSE
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 volunteers who have had unintentional exposures
C.   Experiments with normal volunteers
D.   Experiments with cells derived from human sources
E.   Studies of animals exposed to toxins
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 associated with heart problems among adults
C.   it was a potent teratogen
D.   it was developed before the advent of rigorous clnical trials
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.   Additive
B.   Coalitve
C.   Antagonistic
D.   Synergistic
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.   Coalitive
B.   Synergistic
C.   Potentiation
D.   Antagonism
Question #58
Which of the following refers to toxic substances that are man-made or resultfrom human (anthropogenic) activity?
A.   Toxicant
B.   Teratogen
C.   Toxin
D.   Poison
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.   Absorbed dose
B.   Exposure dose
C.   Internal dose
D.   Effective 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.   Exposure assessment
C.   Dose-response 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.   Dose-response assessment
B.   Exposure assessment
C.   Ecologic assessment
D.   Hazard assessment
Question #62
In the "real world" of environment exposures, most exposures are due to muliple chemicals rather than to a single chemical.
A.   TRUE
B.   FALSE
Question #63
When highly controlled and standardized conditions are desired, human subjects are used in toxicologic testing.
A.   TRUE
B.   FALSE
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.   National Institute for Occupational Safety and Health (NIOSH)
C.   National Institute of Environmental Health Sciences (NIEHS)
D.   Agency for Toxic Substances and Disease Registry (ATSDR)
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.   Comprehensive Environmental Response, Compensation, and Liability Act
B.   Toxic Substances Control Act
C.   National Environmental Policy Act
D.   Resource Conservation and Recovery 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.   TRUE
B.   FALSE
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.   TRUE
B.   FALSE
Question #68
Despite medical advances, infectious diseases are taking an increasing toll in the developed world.
A.   TRUE
B.   FALSE
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.   Mercury
C.   Cadmium
D.   Arsenic
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.   Beryllium
B.   Cadmium
C.   Arsenic
D.   Mercury
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.   Copper
C.   Zinc
D.   Iron
Question #72
Contact with high concentrations of toxic metals is most likely to occur in an occupational setting.
A.   TRUE
B.   FALSE
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.   TRUE
B.   FALSE
Question #74
The term abortive human rabies refers to a case that:
A.   was caused by Francisella tularensis
B.   also experienced comorbidity with monkeypox
C.   None of these is correct.
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 is transmitted frequently by contact with wool
B.   The main reservoir is wild carnivores
C.   It is transmitted by "stealth" arthropods
D.   It has animal reservoirs,especially birds and swine
E.   None of these is correct.
Question #76
Methods for the conrol of mosquito-borne diseases Include:
A.   All of these are correct
B.   removing standing water around the home
C.   monitoring the presence of viruses in sentinel chickens and birds
D.   wearing long clothing
E.   use of mosquito-eating fish
Question #77
Which of the following is true about rabies?
A.   Postexposure prophylaxis has prevented human rabies successfully.
B.   The disease has a low medium fatality rate.
C.   Outside the United States, the most common vector is Gambian rats.
Question #78
During the sporegenic cycle, the malaria parasite is transferred to the human host when the mosquito takes a blood meal.
A.   TRUE
B.   FALSE
Question #79
Amastigotes are an extracellular form of the organism that has flagella, whereas promastigotes are nonflagellated intracellular forms.
A.   FALSE
B.   TRUE
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 disease
C.   Foodborne infection
D.   Foodborne intoxication
Question #81
Just one case of what foodborne illness is considered an outbreak?
A.   Listeriosis
B.   Trichinellosis
C.   Botulism
D.   Salmonellosis
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.   Salmonella typhi
C.   Escherichia coli
D.   Staphylococcus aureus
Question #83
Foodborne intoxications are included by infectious agents, such as some bacteria,that cause foodborne illness directly.
A.   FALSE
B.   TRUE
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.   TRUE
B.   FALSE
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.   Coherence
B.   Temporality
C.   Plausibility
D.   Specificity
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.   Morbidity
B.   Prevalence
C.   Incidence
D.   Mortality
Question #88
What term is normally used to describe the aggregation of relatively uncommon events or diseases?
A.   Grouping
B.   Randomizing
C.   Clustering
D.   Sampling
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.   Case series study
B.   Ecologic studies
C.   Case-conrol studies
D.   Cross-sectional 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.   FALSE
B.   TRUE
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.   a description of disease according to person variables
B.   one cause of spurious or chance clustering
C.   a description of disease according to etiologic factors
D.   a new insect pest that is invading the southwest.
E.   None of these is correct.
Question #94
Which of the following activities characterizes the epidemiologic approach (as opposed to the clinical approach)?
A.   None of these is correct.
B.   Description of a single individual's symptoms
C.   Study of cancer occurrence in populations
D.   Diagnosis of a disease in a sinlge individual
E.   Treatment of a patient with lung cancer
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.   None of these is correct.
D.   (X/Z) x 100,000
E.   (X/Y) x 100,000
Question #96
The risk of acquiring a given disease during a time period is best determined by which of the following?
A.   The incidence rate for that disease in a given period of time
B.   The prevalence for that disease during the past year
C.   A spot map that records all cases of the disease in the past year
D.   The case fatality rate (CFR) from that disease in the 0 to 4 age group
E.   The number of deaths due to that disease during a given 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.   K.J. Rothman
C.   Socrates
D.   Sir Percival Pott
E.   John Snow
Question #98
Prevalence measures aid in:
A.   describing the scope of health problems
B.   the development of hypothesses
C.   assessing variations in disease occurrence, the development of hypothesses, and describing the scope of health problems
D.   assessing variations in disease occurrence
E.   determining the risk of disease
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 malariae
B.   Plasmodium vivax
C.   Plasmodium falciparum
D.   Plasmodium ovale
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.   John Snow
B.   Walter Reed
C.   Henry David Thoreau
D.   Upton Sinclair

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