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Flashcards in Chapter 28 Deck (19)
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1

Pathogen

infectious agent that is present in a host

2

colonization

microorganism multiplies but does not cause infection

3

infectious disease

not at risk for transmission to someone else

4

Communicable disease

Disease from person to person

- HEP C

5

Symptamotic

Clinical signs and symptoms of a disease

6

Asymptomatic

No clinical signs in symptoms

-HEP C

7

Chain of infection

-infectious agent
-reservoir
-portal of exit
-mode of transmission
-portal of entry
-host

8

Infectious agent

-Potential cause depends on:
+ # of organisms (dose
+ Virulence ( ability to survive in host or outside the body)
+Ability to enter and survive in the host
+Susceptibility of the host (immune system)

9

Reservoir

-Place where pathogen can survive
-carrier
-require proper: food, oxygen, water, Low temp, PH (5-7) , light

10

Portal of exit

skin/mucous membranes, respiratory tract, urinary tract, GI tract, Reproductive tract, blood

11

Mode of transmission

-each disease has a specific mode
-major route=unwashed hands
-portal of entry can be the same as portal of exit

12

course of infection by stage

-incubation period
-prodormal stage
-illness stage
-convalescence

13

Incubation period

Interval between entrance of pathogen into body and appearance of first symptoms

14

Prodormal stage

Interval from onset of nonspecific signs and symptoms to more specific symptoms

15

illness stage

interval when client manifests signs and symptoms to specific type of infection

16

convalescence

Interval when acute symptoms of infection disappear

17

defense against normal flora

Normal flora, body systems defenses, inflammation

18

Systemtic infection

entire body

19

localized infection

pain, warmth, edema, redness @ site