Mech 1

Intro to mech (8/26)

health

the absence of disease, the adaptability to different conditions, no impediments on the body’s function or survival

health according to WHO

a state of complete physical, mental, and social well-being, not merely the absence of disease or infirmity.

etiology

the study of causation of diseases and conditions

disease

overt signs and symptoms that disrupt normal bodily functions

acute (def and example)

sudden, flu

chronic (def and example)

a long-lasting condition, diabetes

name three etiological factors

endogenous, exogenous, both 1 and 2

endogenous

originating from within the body, such as genetic or hormonal factors.

exogenous

originating from outside the body, such as environmental or lifestyle factors.

Overlap of exogenous and endogenous

refers to factors that have both external influences and internal biological responses, UV rays + predisposition to cancer

what 2 reasons make it very important to understand mechanisms of disease

prevention and providing care

signs

what the healthcare provider can see/ feel - objective

symptoms

what the patient comes into the clinic with- subjective

diagnosis

the results of labs and tests

prognosis

patient’s future- quality of life, life expectancy

remission

asymptomatic, not cured

relapse

following remission, symptoms start up again

pathogenicity

the ability of a microorganism to cause disease

idiopathic

we don’t know the cause

epidemiology

the study of how diseases are distributed in society + the factors that can influence them

what is morbidity rate

percentage of ill people within a population

equation for morbidity rate

=Population at risk during that period/ Number of new cases in a given period​×100

equation for mortality rate

Mortality Rate=Total population at risk  during that period/Number of deaths in a given period

x100

mortality rate

percentage of those who will die within a population

iatrogenic

illness caused by medical mistake

susceptible

person(s) more likely to contract a disease

nosocomial infection

infection that is contracted in dr’s office or clinic

zoonosis

contracted from vertebral animal

virulence

severity of disease

infection

agent in the host becomes lodged and multiples

disease

the infection causes symptoms

pathogenesis

the development of disease