Costley Module 1

Question 1

What are the 6 essential features for disease transmission

Answer 1

Infectious agent
Reservoir
Port of entry
Port of exit
Mode of transmission 
Susceptible host

Question 2

What factors influence development of infection

Answer 2

of organisms

Virulence
Immune status
General physical health and nutritional status of host

Question 3

What is a reservoir

Answer 3

A place where organism live and multiply

Question 4

What can serve as a reservoir

Answer 4

Inanimate objects
Insects
Cells
Blood

Question 5

What are the modes of transmission

Answer 5

Direct
(Person to person)
Indirect
(Indirect object to person)

Question 6

What contributes to control of dust born pathogens in the office

Answer 6

Surface disinfection

Question 7

Airborne particles are classified by?

Answer 7

Size

Question 8

Two types of airborne particles

Answer 8

Aerosols

Spatter

Answer 9

50u

5u

Question 10

Aerosols are —- and remain in the air —-

Answer 10

Invisible

A Long time

Question 11

Aerosols are sometimes called

Answer 11

Droplet nuclei

Question 12

Spatter particles are greater than —-

In diameter and usually fall how far from origin?

Answer 12

50um

2ft

Question 13

Universal precautions only dealt with transfer of disease through —–

Answer 13

Blood

Question 14

You should flush lines for — between patients

Answer 14

20-30sec

Question 15

Less than —– CFU/ml of heterotrophic water bacteria is acceptable

Answer 15

500

Question 16

What is drug resistant TB

Answer 16

Pt is non compliant in taking medication

Question 17

TB is transmitted through?

Answer 17

Inhalation of aerosolized droplet nuclei from sputum and saliva

Question 18

Maximum communicability of TB is usually?

Answer 18

Just before the disease I diagnosed

Question 19

In TB

Infection of the —- is most common

Answer 19

Lungs

Question 20

People with active TB can only be seen?

Answer 20

For URGENT dental care and In a facility with an airborne isolation room

Question 21

Causes of viral hepatitis

Answer 21

Viral/bacterial infections
Toxins
Certain medications
Heavy alcohol use

Question 22

Hep — and — are spread fecal-oral

Answer 22

A and E

Question 23

Hep — , —- , —- are spread by blood or other infected body fluids

Answer 23

B
C
D

Question 24

HepB occurs at —- age

Answer 24

Any

Question 25

HepB can be spread by what routes

Answer 25

Blood or other body fluid

Inanimate objects that were contaminated

Question 26

Hep B is transmitted through —- and —- exposure

Answer 26

Percutaneous

Permucosal

Question 27

Percutaneous includes:

Answer 27

Intravenous
Intramuscular
Subcutaneous

Question 28

Does hepB have a carrier state

Answer 28

Yes

Question 29

HepB has an incubation period of

Answer 29

2-6mo

Avg 60-90d

Question 30

HepB is communicable when?

Answer 30

Before and during clinical signs

Question 31

HepB vaccine schedule

Answer 31

First one at birth
Second one a month later
Third one 6mo later

Question 32

HepB vaccine is effective at —%

Answer 32

90+

Question 33

A person can get protective immunity to HBV if?

Answer 33

Get vaccinated
Or
Antibodies develop after infection

Question 34

HepC is transmitted by

Answer 34

Blood
Percutaneous exposure
Needle exposure

Question 35

HepA is passed

Answer 35

Fecal oral

Question 36

Does hepA have a carrier state

Answer 36

No

Question 37

Best way to prevent HepA

Answer 37

2-dose vaccine

Question 38

HepC is primarily transmitted

Answer 38

Parenterally

Question 39

Transmission of HepC rarely comes from

Answer 39

Mucous membrane exposure to blood

Question 40

HepD can’t cause infection unless

Answer 40

You have HepB

Question 41

Herpes viruses occur in —- with high prevalence

Answer 41

Perio pockets