Chain of Infection

Question 1

Contact transmission

Answer 1

for patients with diseases or conditions transmitted by patient contact or contact with items in patients environment

Question 2

Droplet transmission

Answer 2

for patients with diseases transmitted by large infectious droplets

Question 3

Airborne transmission

Answer 3

for patients known to have or suspected of having a disease transmitted by airborne droplets

Question 4

Common vehicle transmission

Answer 4

common source with multiple case, food poisoning

Question 5

Vector transmission

Answer 5

transmission by mosquitoes

Question 6

Fomite

Answer 6

contaminated object, doorknob

Question 7

Tier 1 precautions

Answer 7

standard precautions

Question 8

Tier 2 precautions

Answer 8

expanded precautions:

• droplet
• airborne
• contact

Question 9

Spill clean up

Answer 9

• 10% bleach
• clean visible blood first then disinfect
• let bleach sit for 20-30 minutes

Question 10

Bloodborne pathogens

Answer 10

• babesiosis
• colorado tick fever
• Hep B, C, D
• HIV
• Human T-cell lymphotropic
• malaria
• syphilis

Question 11

How long can hep B virus survive for in dried blood?

Answer 11

1 week

Question 12

Protists

Answer 12

single celled organisms

Question 13

Helminthes

Answer 13

wormlike

Question 14

Prions

Answer 14

molecules of infectious proteins

Question 15

What do you do if a family enters the room without proper precautions?

Answer 15

instruct the family member regarding the proper isolation protocol

Question 16

HAI

Answer 16

healthcare associated infection