Midterm Short Answer Questions Flashcards

(46 cards)

1
Q

Who provides the recommendations to the hospitals infection control department when new policies are developed?

A

Centres for Disease Control and Prevention

CDC

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2
Q

How often are reports published by the CDC?

A

Weekly reports and an annual surveillance summary report

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3
Q

3 things emerging diseases include?

A
  1. New diseases appearing in the population
  2. Existing ones that are rapidly increasing in incidence or geographic range
  3. Resurgent or recurrent old diseases caused by an old or mutated pathogen
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4
Q

List the 8 factors that precipitate to disease emergence

A
  1. Increased human exposure to vectors in nature
  2. Population growth and migration to crowed cities
  3. Rapid international travel and transportation of goods
  4. Contact with new strains of dangerous pathogens
  5. Pathogen mutation caused by over-utilization of anti Microbial agents
  6. Breakdowns in public health measures
  7. Climate change
  8. Bioterroism
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5
Q

What are the 2 causes for the cholera outbreaks in South America and Africa?

A

Poor sanitation and insufficient chlorine levels

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6
Q

Where did the immigrants that reintroduced diphtheria into the USA come from?

A

Soviet Union, Russian immagrants

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7
Q

Name the disease emergence responsible for the 1993 Hantavirus pulmonary syndrome

A

6 year drought followed by a mild, wet winter and spring.
These conditions lead to an increase in the number of deer mice.
-Contracted by inhaling dust containing particles of droppings

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8
Q

List the 7 signs and symptoms of Dengue Fever

A
  • high fever
  • headache
  • muscle and joint aches
  • malaise
  • rash
  • hemorrhage
  • shock
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9
Q

What is the vector for Lyme disease?

A

Reforestation increases populations of deer and deer ticks

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10
Q

Which disease emergence is responsible for the spread of “‘once localized” infections such as HIV?

A

Human Migration

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11
Q

In 2001 terrorists caused an outbreak of which disease in the US?

A

Anthrax

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12
Q

What was the source of the SARS outbreak to North America in 2003?

A

Travelers from Asia

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13
Q

List the reason the influenza is so successful

A

Mutates rapidly resulting in many different strains

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14
Q

Which flu in 2009 was a vaccine developed for?

A

Swine Flu

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15
Q

Unpasteurized apple juice and contaminated spinach is linked to causing which E.coli?

A

E.coli 0157:H7

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16
Q

In June 2011, a deadly strain of E.coli caused deaths in Germany. Which countries were linked to this strain as well?

A

USA, Egypt

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17
Q

The E.coli 104:H4 has a trait that produces a toxin that causes kidney failure. What is the name of that toxin?

A

Shiga Toxin

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18
Q

Where did the 2014 multi-country outbreak of Ebola occur?

A

West Africa

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19
Q

List 3 ways Ebola can spread

A
  1. Blood and body fluids
  2. Objects contaminated with virus
  3. Infected fruit bats or primates
20
Q

How many days after exposure does the Ebola flu like signs and symptoms appear in an infected person?

21
Q

Is there a vaccine for Ebola?

22
Q

List the 2 methods that help prevent contracting the Ebola Virus

A
  1. Proper use of personal protective equipment

2. Disinfection protocols

23
Q

What is another term used for nosocomial infections?

A

Hospital acquired infections

24
Q

List the 3 typical HAI’s source of infection

A
  1. Contaminated hands of health care providers
  2. Contaminated instruments
  3. Urinary catheters,ventilators,central line, surgical sites which can allow microbes to gain easy entrance into the body
25
Which HAI can cause respiratory infections?
Penicillin resistant streptococcus and Pseudomonas aeruginosa
26
What are the causes supporting the spread of multi drug resistant infections?
Overuse of anti Microbial agents | Poor infection control practices
27
What is the cause of CA-MRSA?
Recent antibiotic use Sharing contaminated personal items Living in crowed settings Poor hygiene
28
Why is C-difficile so difficult to control?
Spore forming bacteria that is not eliminated by routine asepsis methods
29
Chronically recurring C.difficile effects what percentage of the population?
20%
30
AIDS is what stage of the HIV infection?
Stage 3
31
After how many days can an HIV infected individual transmit the virus to others?
A few days
32
How is HIV transmitted?
- Sexual contact - Contaminated blood, needles - Fluids containing blood - Mother to fetus via placenta - Breast milk
33
What factors are contributing to a continued decline in AIDS diagnoses and deaths?
Poor access to health care | Failure to follow regiments of prescribed drugs
34
How many types of hepatitis are there?
5
35
How is hepatitis B spread?
- Contact with blood or blood products - Contact with body fluids(alive, seem, vaginal secretions) - Maternal fetal contact
36
What % of health care workers are subject to sporadic percutaneous exposures to hepatitis?
1-2%
37
How can hepatitis B be transmitted?
- Needle stick injury - Through nonintact skin contact - With infected blood on environmental surfaces
38
Which types of hepatitis have the potential to develop into chronic infections and cirrhosis?
B and C
39
Which types of hepatitis is there a vaccine for?
B and C
40
What is the immediate management of an accidental needle stick by a contaminated object?
Allow wound to bleed under cold water and wash it with soap
41
What allows a TB droplet nuclei to live on surfaces for years?
They have a waxy coat that allows them to live longer
42
What causes the reactivation of TB and what factors contribute to this reactivation?
When immune response is weakened as it is in old age, illness, malnutrition or with immunosuppressant therapy
43
A negative baseline TST test indicates what?
The person has never been infected
44
How should a diagnosed patient with active TB be managed?
Patient is isolated in negative pressure room | -Personnel and visitors must wear special masks and follow all precautions and procedures
45
According to OHSA, out of 100 workers, how many could be exposure to TB while on the job?
386/1000
46
List the diseases the US Public Health Service still has the legal authority to detain and quarantine
``` Cholera Diphtheria Infectious TB Plague Small Pox Yellow Fever SARS Viral hemorrhagic fevers (Ebola) ```