NURS 231 Portage Pathophysiology Module 1
Problem Set Questions & Answers
1. Define pathophysiology
Answer changes that occur with disease across cells and/ororgans and the effects
these changes have on total body function
2. Name the 5 etiologic factors and give an example
Answer 1. physical force (burns)
2. chemical agents (poison)
3. bioloigcal agents (bacteria)
4. genetic predisposition
5. nutritional excesses/deficiencies
3. Expand on disease etiology
Answer Disease etiology can be one or multiple factorsleading to disease and can
effect one or multiple organ systems. Most etiologiesare idiopathic and/or
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nonspecific in nature.
4. What are 2 types of risk factors?
Answer congenital (hereditary and environmental)and acquired (injury, exposure,
diet, habits, etc)
5. What is the difference between morphology and histology?
Answer Morphology isthe structure of cells and tissues. Histology is the study of
cells.
6. Describe the difference between signs and symptoms and given an exampleof
each
Answer A sign is an objective manifestation (fever, edema) whereas a symptom isa
subjective complaint (dizziness, pain, difficulty breathing)
7. What are 3 important processes when coming to a diagnosis?
Answer 1. patienthistory
2. physical examiniation
3. diagnostic testing
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8. Define epidemiology and some things that it tracks
Answer The study of disease occurrence in human populations. For example, they
may track age, race, nutritionalhabits, lifestyle, and/or geographic location
9. Incidence
Answer the number of new cases in a population at risk during a specified time
10. Prevalence
Answer number of people with the disease in a population at a given time
11. Validity
Answer how a tool measures what it is intended to measure
12. Reliabilty
Answer likelihood of the same result occuring with repeated testing
13. Sensitivity
Answer proportion of people with a disease who test positive for that dis-ease
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