SPECIALISTS EXAM
WGU D115 OBJECTIVE ASSESSMENT (OA)
EXAM 2025 NEWEST ACTUAL EXAM COMPREHENSIVE
QUESTIONS AND VERIFIED ANSWERS GRADED A+
|100% PASS
Describe some direct and indirect ways for transmission of infectious diseases? - ✔✔✔ Correct
Answer > Direct transmission is through direct contact with infections of another person
(fungal, skin lesions, scabies, STIs, lice, herpes). Indirect transmission is through contact with
contaminated materials or surfaces.
Detail characteristics of HIV including causes, transmission, risks, treatments, etc. - ✔✔✔
Correct Answer > - causes Acquired Immodeficiency Syndrome (AIDS) - transmission-blood or
blood products, IV drug use, intercourse - major immunologic finding in AIDS is the striking
decrease in the number of CD4 + Th Cells. - Treatment for HIV infection is a combination of
drugs called highly active antiretroviral therapy (HAART), that attacks different portions of the
viral replication pathway
How do the incidence and prevalence rate differ? - ✔✔✔ Correct Answer > Incidence rate is
the number of new cases of a disease reported during a specific period, divided by the number
of individuals
SPECIALISTS EXAM
, SPECIALISTS EXAM
in the population. Prevalence rate is the proportion of the population affected by a disease at a
specific point in time.
How is relative risk used in relation to disease processes? - ✔✔✔ Correct Answer > Relative
risk is a probability, not an actual outcome, to determine the relative risk you take the increased
rate of the disease among individuals exposed to a risk factor and divide by the incidence rate
of the disease among individuals not exposed to a risk factor.
What are some examples of diseases that correspond with the liability model? - ✔✔✔ Correct
Answer > - Liability threshold model
Pyloric stenosis
Autism spectrum
Congenital malformations
What are empirical risks and how do they affect disease? - ✔✔✔
Correct Answer > Empirical risks are risks based on direct observation
What are the four distinct phases of infectious disease? - ✔✔✔ Correct Answer > 1.
Incubation Period - initial exposure to onset of the first symptoms 2. Prodromal Stage -
occurrence of initial symptoms which are usually mild 3. Invasion Period- pathogen is
multiplying rapidly- the immune and inflammatory responses have been activated.
4. Convalescence- immune-inflammatory system removes infection, symptoms subside...or
disease could be fatal
How do multifactorial disease and single-gene disease differ? - ✔✔✔ Correct Answer > In
contrast to most single-gene diseases, recurrence risks for multifactional disease can change
significantly from one population to another because gene frequencies, as well as
environmental factors, can differ among populations.
What are some effective countermeasures for infectious disease transmission? - ✔✔✔ Correct
SPECIALISTS EXAM
WGU D115 OBJECTIVE ASSESSMENT (OA)
EXAM 2025 NEWEST ACTUAL EXAM COMPREHENSIVE
QUESTIONS AND VERIFIED ANSWERS GRADED A+
|100% PASS
Describe some direct and indirect ways for transmission of infectious diseases? - ✔✔✔ Correct
Answer > Direct transmission is through direct contact with infections of another person
(fungal, skin lesions, scabies, STIs, lice, herpes). Indirect transmission is through contact with
contaminated materials or surfaces.
Detail characteristics of HIV including causes, transmission, risks, treatments, etc. - ✔✔✔
Correct Answer > - causes Acquired Immodeficiency Syndrome (AIDS) - transmission-blood or
blood products, IV drug use, intercourse - major immunologic finding in AIDS is the striking
decrease in the number of CD4 + Th Cells. - Treatment for HIV infection is a combination of
drugs called highly active antiretroviral therapy (HAART), that attacks different portions of the
viral replication pathway
How do the incidence and prevalence rate differ? - ✔✔✔ Correct Answer > Incidence rate is
the number of new cases of a disease reported during a specific period, divided by the number
of individuals
SPECIALISTS EXAM
, SPECIALISTS EXAM
in the population. Prevalence rate is the proportion of the population affected by a disease at a
specific point in time.
How is relative risk used in relation to disease processes? - ✔✔✔ Correct Answer > Relative
risk is a probability, not an actual outcome, to determine the relative risk you take the increased
rate of the disease among individuals exposed to a risk factor and divide by the incidence rate
of the disease among individuals not exposed to a risk factor.
What are some examples of diseases that correspond with the liability model? - ✔✔✔ Correct
Answer > - Liability threshold model
Pyloric stenosis
Autism spectrum
Congenital malformations
What are empirical risks and how do they affect disease? - ✔✔✔
Correct Answer > Empirical risks are risks based on direct observation
What are the four distinct phases of infectious disease? - ✔✔✔ Correct Answer > 1.
Incubation Period - initial exposure to onset of the first symptoms 2. Prodromal Stage -
occurrence of initial symptoms which are usually mild 3. Invasion Period- pathogen is
multiplying rapidly- the immune and inflammatory responses have been activated.
4. Convalescence- immune-inflammatory system removes infection, symptoms subside...or
disease could be fatal
How do multifactorial disease and single-gene disease differ? - ✔✔✔ Correct Answer > In
contrast to most single-gene diseases, recurrence risks for multifactional disease can change
significantly from one population to another because gene frequencies, as well as
environmental factors, can differ among populations.
What are some effective countermeasures for infectious disease transmission? - ✔✔✔ Correct
SPECIALISTS EXAM
