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List the 7 steps to health
1. Be a non-smoker and avoid second hand smoke
2. Eat 5-10 servings of fruits and veggies
3. Regular physical activity
4. Protection from the sun
5. Follow cancer screening guidelines
6. Visit doctor if experiencing changes
7. Follow health & safety guidlines
Health indicators
age, gender, genetics, environment, activity level
Examples of Disease Prevention
Maintain routine vaccinations
Screening programs (Breast exams, prostate exams, etc.)
Community health programs
Regular routine doctor visits
Gross level
organ or system level
Microscopic level
cellular level
Biopsy
the removal of living tissue from the body for diagnostic examination
Autopsy
Examination of the body and organs after death
Diagnosis
the identification of a disease or condition
Etiology
Causative factors in a particular disease
Idiopathic
unknown cause
"I don't know"
iatrogenic
illness caused by medical examination or treatment
predisposing factors
Tendencies that promote development of a disease in an individual
Pathogenesis
development of disease or sequence of events
Acute disease
Develops quickly, marked signs, short term
chronic disease
develops gradually, mild symptoms, long term
Remission
signs and symptoms subside (less severe) or absent
Exacerbation
manifestations of the disease increase
precipitating factors
condition that triggers an acute episode
Sequelae
unwanted outcomes of primary condition
prognosis
probability for recovery or for other outcomes
Atrophy
decrease in the size of cell
-Reduced tissue mass
-Reversible
-Disuse, insufficient blood flow, malnutrition

Hypertrophy
Increase cell size
-enlarged tissue mass
-increased workload

Hyperplasia
increase number of cells
-hormonal stimulation, enlarged tissue mass
Metaplasia
Mature cell type is replaced by a different mature cell type
Dysplasia
infarction
area of dead cells as a result of oxygen deprivation
gangrene
necrotic tissue infected by bacteria
benign tumor
encapsulated, reproduce slow, expands but doesn't spread
Malignant tumor
undifferentiated, unorganized, reproduce quickly, no apoptosis
metastasis
spread to distant sites via blood, lymph, other fluids
effects of malignant tumors
1. weight loss & cachexia
2. Anemia
3. Fatigue
4. Effusions (fluid buildup in body cavities)
5. Infections
6. Bleeding
7. Paraneoplastic syndrom
local effects of malignant tumors
pain, obstruction, tissue necrosis and ulceration
Systemic Effects of Malignant Tumors
Weight loss and cachexia
Anemia
Severe fatigue
Effusions
Infections
Bleeding
Paraneoplastic syndrome
Invasion spread of malignant tumors
-Local spread
-Tumor cells grow into adjacent tissues
-Example: Uterine carcinoma invades vagina
adverse effects of radiation
bone marrow depression,
epithelial cell damage, infertility,
nonspecific fatigue and lethargy
Infertility
physical stressors
Pain
illness
Extremes in temperature
Exercise
Psychological stressors
loss of loved one
nursing school
finances
divorce
Stage 1: Alarm
response to stressor
CNS activated
Increase BP
Stage 2: Resistance
when a stressor is present for more than a few hours