WGU D115 OBJECTIVE ASSESSMENT (OA) EXAM | NEWEST ACTUAL EXAM COMPREHENSIVE QUESTIONS AND VERIFIED ANSWERS GRADED A+ | 100% PASS | 2025 UPDATE!

WGU D115 OBJECTIVE ASSESSMENT (OA) v v v v




EXAM | NEWEST ACTUAL EXAM COMPR v v v v v




EHENSIVE QUESTIONS AND VERIFIED AN v v v v




SWERS GRADED A+ | 100% PASS | 2025 U v v v v v v v v




PDATE!

What are the four distinct phases of infectious disease? -
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v ✔✔✔ Correct Answer > 1. Incubation Period -
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vinitial exposure to onset of the first symptoms 2. Prodromal Stage -
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voccurrence of initial symptoms which are usually mild 3. Invasion Period-
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vpathogen is multiplying rapidly- v v v



vthe immune and inflammatory responses have been activated.
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4. Convalescence- immune-
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inflammatory system removes infection, symptoms subside...or disease v v v v v v v



could be fatal v v




How do multifactorial disease and single-gene disease differ? -
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v✔✔✔ Correct Answer > In contrast to most single-
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gene diseases, recurrence risks for multifactional disease can change signi
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ficantly from one population to another because gene frequencies, as wel
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l as environmental factors, can differ among populations.
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What are some effective countermeasures for infectious disease transmi
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ssion? - v



v✔✔✔ Correct Answer > Control insect vector population, modern sa
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nitation facilities, clean water, vaccines.
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, Define a gene-environment interaction? -
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v✔✔✔ Correct Answer > A genetic condition that causes symptoms tha
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t is aggravated by environmental sources. -
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Cystic fibrosis causes pulmonary edema which is worsened by smoking.
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What are some common diseases that are categorized as multifactorial in
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nature? -
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✔✔✔ Correct Answer > HTN, CAD, Cancers, Diabetes, Obesity, Alzhei
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mer's Disease v




Describe some direct and indirect ways for transmission of infectious dise
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ases? - v



v✔✔✔ Correct Answer > Direct transmission is through direct contact
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with infections of another person (fungal, skin lesions, scabies, STIs, lice, h
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erpes). Indirect transmission is through contact with contaminated mater
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ials or surfaces.
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Detail characteristics of HIV including causes, transmission, risks, treatme
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nts, etc. - ✔✔✔ Correct Answer > -
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causes Acquired Immodeficiency Syndrome (AIDS) - transmission-
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blood or blood products, IV drug use, intercourse -
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major immunologic finding in AIDS is the striking decrease in the number
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of CD4 + Th Cells. -
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Treatment for HIV infection is a combination of drugs called highly active
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antiretroviral therapy (HAART), that attacks different portions of the viral
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replication pathway v




How do the incidence and prevalence rate differ? -
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✔✔✔ Correct Answer > Incidence rate is the number of new cases of a
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