Class 1-2 - Intro to Pathophysiology, Cellular Death, Injury Flashcards

1
Q

Define pathophysiology

A

The science of structural and functional changes as a result of injury on the level of the human organism

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2
Q

Define disease

A

an impairment of functioning on the cellular, tissue, organ and organ-system levels

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3
Q

Define illness

A

a state of human organism’s alteration, resulting in physical, emotional and spiritual distress

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4
Q

Describe the levels of disease prevention

A

1) Primary: prevent disease, e.g. lifestyle change, immunization
2) Secondary: early detection, e.g. colonoscopy, mammography, Pap smear
3) Tertiary: prevention of disease complications and/or progression, e.g. treatment/management of patient’s altered state

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5
Q

The term for accepted theory or hypothesis of the cause of a disease is ________
The term for accepted mechanism of a disease’ development is _______

A

etiology

pathogenesis

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6
Q

Define Risk Factors in the context of pathophysiology

A

vulnerabilities which increase the chances of the disease development

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7
Q

Define Precipitating Factors in the context of pathophysiology

A

triggers, leading to the onset of a disease

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8
Q

A disease is idiopathic if it is of ____ cause.
An iatrogenic disease is caused by _________.
A ________ disease originates within a medical facility/hospital

A

unknown

medical intervention

nosocomial

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9
Q

Compare and contrast signs vs. symptoms

A

Signs are objective manifestations of disease

Symptoms are subjective manifestations of disease

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10
Q

A syndrome is ________

A diagnosis is ________

A

a characteristic set of signs and symptoms

a statement concerning with the most likely nature of a disease/syndrome

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11
Q

Differential diagnosis is _________

A

a list of altered health states, which are characterized by similar signs and symptoms

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12
Q

The most probable outcome of a disease is termed ______

Medical/health care actions which may aggravate a patient’s condition are known as _________

A

prognosis

contraindications

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13
Q

Progression of a disease in severity and extent of dysfunction is known as _______

A

complications

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14
Q

Side / Adverse Effects are defined as _________.

_______ effects may be harmful or beneficial but ________ effects are always harmful and may lead to complications, including death

A

predictable but unintended results of disease management.

Side

Adverse

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15
Q

Compare and contrast acute vs. chronic conditions

A

Acute- sudden rapid onset with typically more severe signs and symptoms

Chronic - longer duration, slow progression, little signs of change

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16
Q

A disease is communicable if it __________

A

spreads from person to person

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17
Q

Define epidemic

A

above usual rate of a disease occurrence in a certain population

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18
Q

Define endemic

A

persistently occurring/characteristic disease in a certain area

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19
Q

Define pandemic

A

an epidemic rate of a disease affecting all continents

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20
Q

Occasional occurrences of a disease with unrelated cases at random are termed ______

A

Sporadic

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21
Q

A congenital disease is ________

An acquired disease is _______

A

an altered state, present at birth

developed after birth

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22
Q

Genetic disease is ___________

Familial disease is ___________

A

inherited as a manifestation of altered genes

a disease that runs in a family but not known to be directly inherited due to a particularly altered gene/set of genes

23
Q

List various types of injurious factors (stressors).

A

Hypoxia, ischemia, Free radicals, Fat, Bilirubin, chemicals, nutritional imbalances, microorganisms, physical agents (cold, heat, electricity, UV radiation, etc)

24
Q

Atrophy is __________ due to inadequate nourishment, stimulation, or use

A

a diminuition of cell size

25
Atrophy is irreversible (T/F)
T
26
Hypertrophy is __________ due to increased work load, or congenital condition.
an increase in cell size
27
Physiological hypertrophy is reversible (T/F)
T
28
Hyperplasia is __________ due to hormonal stimulation or as a compensation reaction.
an increase in cell number
29
Hyperplasia is reversible (T/F)
T
30
Metaplasia is _______
conversion of one mature normal type tissue to another mature normal type tissue
31
Metaplasia is irreversible (T/F)
F
32
Dysplasia is ________
abnormal proliferation of cells with various degrees of cellular atypical features.
33
_______ is a direct prerequisite to cancer.
Dysplasia
34
Dysplasia is reversible (T/F)
T
35
Apoptosis is _________
programmed cell death
36
_______ is cellular and tissue death within a living organism
Necrosis
37
In metaplasia, cells can convert from one primary tissue type to another, e.g. epithelial tissue to connective tissue (T/F)
F | cell type not tissue
38
Cellular death within a dead body is called _______
autolysis
39
List various types of necrosis
``` Coagulative necrosis Liquefactive necrosis Fat necrosis Causeous necrosis gangrene ```
40
Coagulative necrosis is typically caused by ______
ischemia or infarction
41
Ischemia in the central nervous system typically leads to _______ necrosis
liquefactive
42
How does liquefactive necrosis progress in the brain?
enzymes escape from within injured brain cells leading to liquefaction
43
Describe the role of digestive enzymes in fat necrosis
digestive enzymes acting on fat from injured cells, separating fatty acids from glycerol. Fatty acids then form complexes with Ca2+ leading to formation of soaps
44
Caseous necrosis is a combination of _________ causing the damaged tissue to have a _______ appearance
coagulative necrosis and liquefactive necrosis cheese-like
45
Compare and contrast dry gangrene vs. wet gangrene
dry gangrene is mainly coagulative necrosis | wet gangrene is a combination of coagulative necrosis and liquefactive necrosis due to infection
46
Liver steatosis is also known as ________.
fatty liver
47
Describe Liver steatosis and possible etiologies.
Triglyceride metabolism in the LV is interrupted leading to fat accumulations Possible etiologies include alcoholism, obesity, nutritional imbalance
48
Dystrophic calcification is the deposition of calcium within ________ tissue. Describe pathogenesis of dystrophic calcification.
dead/injured injured cells expose negative ends of proteins. Ca2+ is attracted to negative ends, leading to calcification
49
Metastatic calcification is the deposition of calcium in _______ tissue due to ___________
normal hypercalcemia
50
List #1 and #2 etiologies of hypercalcemia and their pathogeneses
1) hyperparathyroidism - excess PTH extracts Ca2+ from bone | 2) cancer - high turnover of bone and blood cells leads to release of Ca2+ from SER
51
KD stones are a type of _______ calcification
metastatic
52
Which type of free radical is the most common? Why?
Unstable oxygen molecules are the most common because live cells use oxygen for ATP production
53
How does pathology differ from pathophysiology?
Pathology is the study of injury on the organ level, whereas pathophysiology is the study of injury on the organism level