Module 2 quiz Flashcards
In the inflammatory response what happens?
- Histamine causes blood vessels to dilate and become more permeable bringing more blood (fluid and cells) to infected area
- White blood cells ingest (phagocytose) invading organisms
- Fluid (plasma) may contain antibodies that act against invading organisms
A Male patient had a wisdom tooth removed at the dental office 4 days ago. If he developed a post operative infection, signs and symptoms could include what?
- Fever and malaise
- Inflammation of site
- Swollen cervical lymph nodes
Infection is correctly defined as what?
Pathogens present with no specific symptoms
A person who harbours staphylococcus aureus in their nose with no symptoms is termed what?
A carrier
A chronic carrier is defined as a person who carries potentially pathogenic microbes for how long?
More than six months
Common portals of entry include what?
- Non intact skin and mucous membranes
- The plancenta
- Parenteral
What is Normal Flora?
- Usually prevents pathogens from colonizing
- Is generally the same from person to person for a given site
- May be altered by excessive moisture on the skin
The current trend in hospital care is to shorten the hospital stay for surgical patients. What effect will this have on the incidence of nosocomial infections?
IT should reduce the risk of nosocomial infection. There are far less pathogenic bacteria in the home environment and they are less likely to be antibiotic resistant
Normal flora microorganisms may be what?
Destroyed with some antibiotics
What is MRSA?
- Stands for major risk staphylococcus aureus
- Is much more virulent than regular staphylococcus aureus
- Infection often require treatment with vancomycin
If you developed a “staph” infection after touching an arm rest smeared with purple not exudate from a patient’s infected finger, it would be termed what?
Indirect contact transmission
IF you developed infectious mononucleosis from kissing someone special it would be termed what?
Direct contact transmission
If you developed an infection after being coughed on while you were working directly over a patients mouth, it would be termed what?
Droplet type of contact transmission
An endogenous infection is defined as?
Microbes from within the host body causing infection
The components of the chain of infection include what?
- Reservoir
- Mode of transmission
- Susceptible
Current “super bugs” include what?
- MRSA, VRE, and C. Difficult
- Area resistant to many antibiotics
- Cause infections which are not necessarily worse - just harder to treat
An example of an infection is what?
Staphylococcus aureus have penetrated the skin via a hair follicle and caused localized inflammation
The most common nosocomial infection seen in hospital patients is what?
Urinary infection
A systemic infection is defined as what?
Infection involving several organs
An opportunistic microorganism is what?
May cause infection in patients who have lowered body defences
An example of colonization is what?
Normal skin staphylococci growing on the inner surface of an intravenous line without causing any harm to the patient
An example of contamination is what?
Fecal bacteria on the outer surface of an vinyl glove
If you developed tuberculosis from droplet nuclei produced by a person coughing on your last airline trip it would be termed what?
Vehicle transmission
The most common reservoir of human disease is what?
Other people
