(M) Natural History and Spectrum of Disease; and The Levels of Disease Prevention Flashcards
refers to the progression of a disease process in an individual over time, in the absence of treatment
Natural History of Disease
untreated infection with HIV causes a spectrum of clinical problems beginning at the time of seroconversion (primary HIV) and terminating with AIDS and usually death.
This may take 10 years or more for AIDS to develop after seroconversion.
Example of Natural History of Disease
Natural History of Disease - T or F
Many, if not most, diseases have a characteristic natural history
T
may history ang isang disease <3
the time frame and specific manifestations of disease may?
vary from individual to individua
what is the influence of a disease
Influenced by preventive and therapeutic measures
If left untreated, a disease would evolve through a series of ?
Stages
what are the series of stages are meant when a disease is left untreated?
stages that characterize its natural history
if an intervention is applied to a disease, what would happen?
the natural history is modified
T or D
when the natural history is modified, it will not produce a typical clinical course for the condition
F (it will produce a typical….)
What are the components of natural history of disease timeline
- Stage of Susceptibility
- Stage of Subclinical Disease
- Stage of Clinical Disease
- Stage of Recovery, Disability or Death
When does the exposure happen?
After the stage of suceptibility
identify what stage of the disease process
patholofic changes
Stage of Subclinical Disease
Onset of symptoms?
after the Stage of Clinical Disease
may symptoms lang pero walang manifestation of diease
can be tested, to make sure <3
When does usual time of diagnosis occurs?
Between Stage of Subclinical and Clinical Disease
what is the final disease timeline?
Stage of Recovery, Disability, or Death
womp womp
May vary from person to person and are influenced by preventive and therapeutic measures
Natural History of Disease Timeline
per person to okay? okay
The natural history of diseases for descriptive purposes has two phase
- Prepathogenesis
- Pathogenesis
his is the phase before man is involved
wala pa sakit, agents is not inside me (host)
Prepathogenesis
T or D
everyone is in the period of pre-pathogenesis of many diseases because disease agents are present in the environment where man lives
T
di lang napapasukan??? or naaffect
Interaction of the agent, the host and environmental factors, the agent finally reaches man
Period of Pre-pathogenesis
Strong winds can transport anopheline mosquitoes from an endemic area to a distant non-malarious one, thus bringing into proximity the vectors and prospective hosts.
Period of Pre-pathogenesis
The host must be in the area when the mosquitoes are blown by the wind.
This phase includes the successful invasion and establishment of the agent in the host.
Pathogenesis
what needs in the period of pathogenesis for a disease to manifest?
Incubation .
Incubation Period dude
After a period of incubation, whereby the agent multiplies and develops, or gets absorbed and fixed in the tissues, sufficient tissue or physiologic changes may have taken place to produce detectable evidence of the disease process in man
clinical horizon