Classification of Disease Flashcards
What is disease ?
Any condition which impairs health, or interferes with the normal functioning of the body is called disease.
Characteristics of disease
Aetiology
Pathogenesis
Manifestations
Complications
Outcome
Epidemiology
Aetiology
The cause of a disease or abnormal condition.
Possible Causes of Disease
Genetic
Environmental
Combination (multifactorial )
Unknown
How can you classify disease ?
Functional
Biological
Socioeconomic and health
Systems or precision medicine
Why classify disease ?
To understand and communicate.
Prognosis
Treatment
Prediction
Epidemiology
Functional disease
Sore head
Biological disease
Haemorrhage
Tumour
Trauma
Socioeconomic and health disease
Hangover
Systems or precision medicine disease
Any/all types of disease, integrated.
4 P’s of medicine
Personalised
Predictive
Participatory
Preventative
Pathogenesis
The process by which an infection leads to disease.
Mechanism by which a cause produces disease.
Morphology
Relating to the form or structure of things.
e.g. skin abscess
lung tumour
What should you do about the probability of disease ?
Think of prevention.
Idiopathic
Of an unknown cause.
Koch’s postulates
Cause must be observed
Disease must be isolated and grown
Effects must be reproduced
Recovery of microorganisms form diseased animal
Benign vs Malignant
A benign tumour has distinct, smooth, regular borders.
A malignant tumour has irregular borders and grows faster than a benign tumor.
Acute vs Chronic
Acute illnesses generally develop suddenly and last a short time, often only a few days or weeks. Chronic conditions develop slowly and may worsen over an extended period of time—months to years.
Syndrome vs Disease
A syndrome refers to a group of symptoms, while a disease refers to an established conditionS
Staging
Describes the extent or severity of a persons cancer. TNM staging
Incidence
How many times a disease will occur in a year.
Prevalence
How many people will have a disease at a given time.
