Tuesday, January 26, 2010

Aspects of disease process

Four Aspects of Disease Process

1. Etiology. Refers to the cause of the disease.

a. Microorganisms.

b. Risk factors.

b.1. Modifiable (diet, lifestyles, vices)

b.2. Non-modifiable (age, gender, heredity)

2.Morphological. In connection to the tissue affected.

3. Physiology.

4. Signs and symptoms.


INFLAMMATORY RESPONSES

Vascular changes
  • Vasodilation
  • Increase capillary permeability
  • Increase blood flow
  • Local tissue congestion
Cellular changes
  • Phagocytosis
  • Increase leukocytes
  • Release of chemical mediators

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