Midterm

Question 0

Aerosols

Answer 0

Less than 50 um, most are less than 5 um, invisible

Question 1

Spatter

Answer 1

Greater than 50 um, visible, less suspension time

Question 2

Standard precautions

Answer 2

Integrate and expand Universal precautions, applies to contact with blood, bodily fluids, non intact skin, mucous membranes

Question 3

6 essential features

Answer 3

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

Question 4

EPA standards for drinking water

Answer 4

Less than 500 CFU/ml of heterotrophic water bacteria

Question 5

Hepatitis that is a clinical concern

Answer 5

Types B C and D

Question 6

How many herpes strains infect humans

Answer 6

8

Question 7

Responsible for herpetic lesions

Answer 7

HSV-1

Question 8

HSV-2

Answer 8

Genital herpes

Question 9

CD4+ lymphocytes more than 500

Answer 9

Acute seroconversion syndrome

Question 10

CD4+T lymphocytes 200-500 cells

Answer 10

Early symptomatic HIV disease

Question 11

CD4+T cells count falls below 200

Answer 11

AIDS

Question 12

Respiratory mask filtration standard

Answer 12

Blocks 95% of particles as small as 3u

Question 13

Most important single procedure for prevention of cross contamination:

Answer 13

Hand washing

Question 14

Latex type 1 hypersensitivity

Answer 14

Immediate reaction

Question 15

Latex type IV hypersensitivity

Answer 15

Delayed reaction (6-72 hours)

Question 16

Cleaning procedures

Answer 16

Instrument washer/thermal
Disinfector
Ultrasonic processing
Manual cleaning

Question 17

Sterilization

Answer 17

Process by which all forms of life including bacterial spores are destroyed by physical or chemical means

Question 18

Approved sterilization methods

Answer 18

Moist heat (steam under pressure)
Dry heat
Chemical vapor

Question 19

Autoclave types

Answer 19

Gravity displacement

High-speed prevacuum

Question 20

Gravity displacement time and temp

Answer 20

250 for 15-30 min 15 psi

Question 21

High speed prevacuum time and temp

Answer 21

270 for 3.5 to 10 min 15 psi

Question 22

Dry heat time and temp

Answer 22

320 for 2 hours or
340 for 1 hour
Principle of action: oxidations

Question 23

Chemical vapor sterilization time and temp

Answer 23

270 for 20 min at 20-40 psi

Question 24

High level disinfectant

Answer 24

Inactivates spores and all form of bacteria, fungi, and viruses

Question 25

Intermediate level

Answer 25

Inactivate all forms of microorganisms but does not destroy spores

Question 26

Low level disinfectant

Answer 26

Inactivates vegetative bacteria and certain lipid type viruses but do not destroy spores, tubercle bacilli or nonlipid viruses

Question 27

Critical object

Answer 27

Penetrates soft tissue or bone ex needle

Question 28

Semi critical object

Answer 28

Touch intact mucous membranes oral fluids, does not penetrate ex mirror

Question 29

Non critical

Answer 29

Does not touch mucous membranes ex chair, a/w syringe

Question 30

Environmental

Answer 30

No contact with patient surfaces

Question 31

OSHA

Answer 31

Occupational Safety and Health Administration

Question 32

Fundamental premise of OSHA

Answer 32

Employees have a right to know about the hazards and know how to protect themselves

Question 33

GHS is giving employees the

Answer 33

Right to understand

Question 34

Hazard communication standard label information must include

Answer 34

Name of chemical | Warnings about any hazards the material presents

Question 35

Safety Data Sheets

Answer 35

New format requires 16 sections

Question 36

National Fire Protection Association

Answer 36

``` Uses 4 different colored diamonds: Blue: health Red: Flammability Yellow: reactivity White: special Hazard ```

Question 37

Carpal tunnel syndrome

Answer 37

Caused by compression of the median nerve

Question 38

Thoracic outlet syndrome

Answer 38

Compression of the brachial nerve plexus

Question 39

Types of mirrors

Answer 39

Plane Concave Front Two sided

Question 40

Goal of dental hygiene instrumentation

Answer 40

The complete removal of hard and soft deposits from the teeth with no damage to the hard or soft tissues

Question 41

Adaptation

Answer 41

The relationship between the instrument and surface of the tooth or soft tissues

Question 42

Digital palpitation

Answer 42

Use of single finger or more fingers

Question 43

Bidigital

Answer 43

Finger and thumb of the same hand

Question 44

Bimanual

Answer 44

Use of finger or fingers and thumb from each hand applied in coordination

Question 45

Bilateral

Answer 45

Both sides simultaneously

Question 46

Blister form lesion types

Answer 46

Vesicles, pustules, or bullae

Question 47

Non blister form types of lesions

Answer 47

Papules, nodules, tumors, or plaques

Question 48

Base as wide as the lesion

Answer 48

Sessile lesion

Question 49

Attached by a narrow stalk or pedicle

Answer 49

Pedunculated lesion

Question 50

Depressed lesions

Answer 50

Ulcers

Question 51

Flat lesions

Answer 51

Same level as normal skin or mucosa, have regular and irregular form ex macule

Question 52

Filiform papilla

Answer 52

Numerous cone shaped projections

Question 53

Fungi form

Answer 53

Less numerous mushroom shaped

Question 54

Foliate

Answer 54

On lateral sides of tongue

Question 55

Circumvallate

Answer 55

Big buds in back; house ducts of Von Ebner