Cna 1 Unit 3 Study Questions (Lcc - Nc)

Front 1

List the six parts of the Chain of Infection?

Back 1

1. Causative agent
2. Reservoir
3. Portal of entry
4. Portal of exit
5. Mode of transmission
6. Host

Front 2

How can microorganisms be seen?

Back 2

Only through a microscope.

Front 3

How do microorganisms surround us?

Back 3

1. Air
2. On our skin and in our bodies
3. In the food we eat.
4. On every surface we touch.

Front 4

What can microorganisms cause?

Back 4

1. Illness
2. Infection
3. Disease

Front 5

How do microorganisms benefit us?

Back 5

By maintaining a balance in our environment and in our body.

Front 6

List the elements that microorganisms require to survive.

Back 6

1. Oxygen - aerobic
2. No oxygen - anaerobic
3. Warm temperatures
4. Moisture
5. Dark areas to grow.
6. Food - dead tissue (saprophytes) and living tissue (parasites).

Front 7

List the body's external natural defenses.

Back 7

1. Skin as a mechanical barrier.
2. Mucus membrane
3. Cilia - fine microscopic hairs in the nose.
4. Coughing and sneezing.
5. Hydrochloric acid in stomach.
6. Tears.

Front 8

List the body's internal natural defenses.

Back 8

1. Phagocytes
2. Inflammation
3. Fever
4. Immune response

Front 9

List how non-pathogenic organisms benefit man.

Back 9

1. Produce cultured milk products.
2. Cause fermentation.
3. Cause bread to rise.
4. Cause decomposition of organic materials.
5. Make vitamins in colon.

Front 10

List the type of causative agents - pathogens in the Chain Of Infection.

Back 10

1. Bacteria
2. Viruses
3. Fungi
4. Protozoa

Front 11

List the types of reservoirs of the causative agent in the Chain Of Infection.

Back 11

1. Humans with active cases of disease or those that carry disease without having symptoms.
2. Animals/insects
3. Fomites
4. Environment

Front 12

List the types of portals of entry of causative agent in the Chain Of Infection.

Back 12

1. Cuts/break in skin.
2. Openings in mucus membrane.
3. Respiratory system
4. Gastrointestinal system
5. Urinary system
6. reproductive system
7. Mother to fetus.

Front 13

List the types of portals of exit for causative agent in the Chain Of Infection.

Back 13

1. Tears (slight risk)
2. Saliva/respiratory tract secretions
3. Urine
4. Feces
5. Wound drainage
6. Reproductive tract secretions

Front 14

List the types of modes of transmission for the Chain Of Infection.

Back 14

1. Contact (direct - person to person, indirect - fomite to person, and droplet - common cold)
2. Common vehicle - salmonella in food
3. Airborne - tuberculosis
4. Vector-borne - mosquito harbors malaria parasite

Front 15

What is a host in the Chain Of Infection?

Back 15

Any individual who harbors infectious organisms.

Front 16

What is medical asepsis?

Back 16

The practice used to remove or destroy pathogens and to prevent their spread from one person or place to another person and place; clean technique.

Front 17

Identify the practices the NA can use to promote medical asepsis in personal life and in the work setting.

Back 17

1. Washing hands after use of bathroom.
2. Washing hands prior to handling food.
3. Washing fruits and vegetables before serving or consuming.
4. Covering nose and mouth prior to coughing, sneezing, blowing nose and then washing hands.
5. Bathing, washing hair and brushing teeth on a regular basis.
6. Washing cooking and eating utensils with soap and water after each use.
7. Following sanitation practices (proper disposal of garbage and waste materials).
8. Washing hands before and after caring for each resident.
9. Using approved waterless hand cleaner.
10. Washing residents hands before meals.
11. Cleaning resident's unit.
12. Cleaning all reusable equipment after use.

Front 18

List the methods to kill or control microorganisms.

Back 18

1. Disinfection
2. Sterilization
3. Care of supplies or equipment.
4. Other aseptic measures.

Front 19

What does disinfection kill?

Back 19

It kills most microorganisms, but not spores.

Front 20

What does sterilization kill?

Back 20

It kills all microorganisms, including spores.