Wk 1 Pathophysiology Flashcards
Pathophysiology
study of disease and injury and how it affects the body, changes in physiology of the body
Patho
prefix for abnormal
Pathology
laboratory study of cells and tissues
Disease
disruption in homeostasis
- physical, mental, and social
Homeostasis
- the body and organs function best when in the normal range
- tendency to maintain an equilibrium
- steady state of internal chemical and physical conditions
- normal BP, temp, pH
Causes of disease
intrinsic and extrinsic
Intrinsic conditions
conditions that come from inside the body, something is going wrong inside your body
Extrinsic conditions
bacteria, virus
pathogen + conducive environment + susceptible host = disease
Intrinsic factors
genes, immunity, age extremes, biologic gender
Extrinsic
bacteria, viruses, injury, behaviors such as smoking or drinking alcohol, stressors, fungi
Process of Disease
- Identification
- Occurrence
- Diagnosis
- Etiology
- Prognosis
Identification
signs (objective) and symptoms (subjective)
Occurrence
how often and when (time of year, like less flu in June)
Diagnosis
identification, name to disease
Etiology
cause, what led to the disease, we don’t always know
Prognosis
likelihood of recovery, to get back to baseline
Stages of Disease
- Exposure
- Onset
- Remission
- Convalescence
Exposure
where, is everyone in the home okay, etc
Onset
sudden
insidious = more common with chronic, slow
latent = not active but lies in wait
prodromal = indicating onset of a disorder, pre-sickness like chills
manifestations = signs + symptoms
Remission
disease is no longer active
Convalescence
recovering from the disease
Types of diseases
idiopathic
iatrogenic
exacerbation
Idiopathic
we don’t know what the cause is, UNKNOWN, we might have ideas or theories
Iatrogenic
caused by some treatment, a “medical” cause, risks that can happen
ex: pressure ulcers, hospital acquired infections, intestinal wall perforation during colonoscopy, medication error
