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HSA 535 MIDTERM EXAM PART 1

HSahsh1212Question 1
One of the important concepts from the Nuremberg Code is that of ____, which means that the subject understands the scope of the study and can make an informed decision to participate.

informed consent

voluntary consent

beneficence

primary agent
Question 2
The biological cause of a problem or disease is known as ____.

hypothesis

etiology

consent

agent
Question 3
The first step in any epidemiological investigation is to ____.

understand causation

establish risk factors

track trends and determine if particular diseases are increasing or decreasing in the population

describe the population demographically by age, race, sex, education, and other relevant indicators
Question 4
HIV, the virus that causes AIDS, is currently a ____.

non-modifiable risk factor

pandemic

modifiable risk factor

distribution
Question 5
Physical, biological, social, cultural, and behaviors that influence health are known as ____.

risk factors

health-related states

agents

determinants
Question 6
The normal occurrence of a disease or condition common to persons within a localized area is known as a(n) ____.

transmission

pandemic

endemic

epidemic
Question 7
A disease or condition that affects a greater than expected (normal) number of individuals within a population, community, or region at the same time is referred to as an ____.

epidemic

endemic

outbreak

epidemic threshold
Question 8
For chronic diseases, the time between exposure and symptoms is called the ____ period, which can range from a few months to many years.

latency

incubation

temporal

plausibility
Question 9
Risk factors or exposures that we think might affect the outcome are known as ____.

indirect causes

direct causes

dependent variables

independent variables
Question 10
A test given to people who have no symptoms to check for the presence of a particular disease is known as a ____.

predictive value

diagnosis

prevention

screening test
Question 11
Identifying diseases prior to the clinical stage means that prevention efforts can begin immediately. Because the disease is already present, this is an example of ____ prevention.

primary

secondary

tertiary

quaternary
Question 12
The modern epidemiologic triangle includes groups of populations, causative factors, and ____.

alternate explanations

risk factors

results

coherence
Question 13
The aspect of consistency means that ____.

an increasing amount of exposure increases the risk

the association should be compatible with existing theory and knowledge

the association is consistent when results are repeated in studies in different settings using different methods

the findings agree with currently accepted understanding of pathological processes
Question 14
While Austin Bradford Hill is well-known for his work in developing guidelines for establishing causality for studies of non-infectious diseases, his other contributions to the field of epidemiology and ____ are remarkable.

psychology

statistics

sociology

mathematics
Question 15
The number of new cases of disease in a specified time (usually one year) divided by the population ‘at-risk’ to develop the disease is known as ____.

prevalence proportion

incidence rate

contingency

case severity
Question 16
The number of existing cases of disease divided by the population is known as ____.

crude rate

person time

incidence rate

prevalence proportion
Question 17
A proportion measured over a period of time is known as a ____.

period prevalence

prevalence proportion

point prevalence

rate
Question 18
Prevalence equals ____.

incidence times duration of disease

incidence divided by duration of disease

incidence plus duration of disease

incidence divided by duration of disease times 100
Question 19
Consider a food borne illness that is being investigated from a restaurant during a one week period. Anyone who ate at that restaurant, and had vomiting and diarrhea during that week, could be considered a(n) ____ even if they had not gone to see their doctor.

incidence

prevalence

suspect case

case
Question 20
While many people are used to hearing proportions represented as a percentage, many population samples in epidemiology are often presented per ____.

1,000

10,000

100,000

1,000,000
Question 21
The representation of a numerator as a fraction of a denominator is known as a(n) ____.

proportion

rate

incidence rate

specific rate
Question 22
A table in epidemiology that arranges numbers to allow the comparison of exposure and outcome is called a ____ table.

proportion

contingency

specific

crude
Question 23
A(n) ____ is an infected individual capable of transmitting disease during and after clinical disease.

convalescent carrier

passive carrier

active carrier

inactive carrier
Question 24
One of the most important emerging problems with the control of infectious diseases has to do with ____.

deadly parasitic infections

antibiotic resistant viral infections

antibiotic resistant bacterial infections

vaccine resistant viral infections
Question 25
The disease carrier of most concern is known as a(n) ____, which is an infected person who never gets clinically ill, but can transmit the etiologic agent to others.

healthy or passive carrier

pregnant carrier

convalescent carrier

active carrier
Question 26
Infectious diseases are responsible for ____% of worldwide deaths in children under 15 years old and ____% of deaths in people aged 15-59 years old.

90; 70

98; 50

50; 90

20; 80
Question 27
If a bacterium carries several resistance genes, it is called a ____.

multidrug resistant drug or super-drug

multidrug resistant bacterium or superbug

resistant bacterium or streptococcus bacterium

killer bacterium or deadly bacterium
Question 28
____ is the transmission of a disease from person to person, and may be directly from one person to another, or indirectly from one person through an intermediate item to another person.

Horizontal transmission

Vertical transmission

Quick transmission

Polar transmission
Question 29
There is ____ in the overall crude death rate in the United States from the year 1900 until 1996.

a definite increase

a slight decrease

hardly any change

a clear decline
Question 30
____ is the transmission of a disease from mother to child during pregnancy or delivery.

Horizontal transmission

Vertical transmission

Lateral transmission

Polar transmission