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Emerging Infectious Diseases
scary
26
Medical
Professional
04/27/2009

Additional Medical Flashcards

 


 

Cards

Term
definition of emerging infectious diseases
Definition
diseases whose incidence in humans has increased in past two decades or threatens to increase
Term
forms of direct transmission
Definition
direct contact and droplet spread
Term
indirect transmission
Definition
airborne, vehicle-born, food/water/soil
Term
vector-borne
Definition
mechanical (needle), biological (insect)
Term
droplet precautions
Definition
wear a mask within 3 feet
Term
airborne precautions (particles <5 micrometers)
Definition
N95 respirator for you and use a negative pressure room
Term
bioterrorism routes of entry
Definition
inhalation (route of choice), breaks in skin, ingestion, vector, or use microwave radiation to heat up water releasing the chemical into the air
Term
Caegory A - national security risk
Definition
easily disseminated or transmitted person-person, result in high mortality, may cause panic and requires special actions for public health preparedness; batman cannot help here
Term
Category B infectious agents
Definition
moderately easy to disseminate, moderate morbidity and low mortality; CDC has to step its game up
Term
Category C infectious agents
Definition
emerging pathogens that are easily available, easily produced/disseminated, potential for high morbidity; call batman for help
Term
list of category A agents
Definition
anthrax, pneumonic plague, botulism, tularemia, smallpox, ebola/marburg
Term
anthrax
Definition
standard precautions; no person-person spread
Term
tularemia
Definition
standard precautions; no person-person spread
Term
botulinum
Definition
standard precautions; no person-person spread
Term
pneumonic plague
Definition
standard + droplet precautions; wear a regular mask
Term
smallpox
Definition
standard + airborne + contact precautions; negative pressure room, N95 mask, gown/gloves
Term
viral hemorrhagic fevers
Definition
standard + contact + droplet/airborne; blood could be aerosolized; neg pressure room, N95, gown/gloves
Term
large gram+ rods, infectious spores, if untreated can have 100% mortality; requires 8,000-40,000 spores to be inhaled that are no larger than 1-5 microns
Definition
anthrax (esp inhalational)
Term
widened mediastinum and pleural effusions on chest x-ray; 50% associated with hemorrhagic meningitis
Definition
inhalational anthrax
Term
1-12 day incubation, spores must enter break in skin; get a papule->vesicle->black necrotic ulcer; painless; 20% fatality
Definition
cutaneous anthrax
Term
1-7 day incubation; must be swallowed; can be either oropharyngeal or abdominal; moderately fatal
Definition
gastrointestinal anthrax
Term
variola virus
Definition
causative agent of smallpox
Term
virus enters mucosa through upper respiratory tract; via close contact; not so much respiratory droplets/discharges; face-to-face contact and large droplet exposure most important
Definition
smallpox
Term
patient most infectious with smallpox
Definition
1st week due to oral mucosa lesions ulcerate and release large amts of virus into saliva
Term
smallpox presentation
Definition
week incubation, prodrome of 2-4 days; early rash at 4 days (most contagious) w/ lesions on extremities all at same stage; pustular rash + scabs at 5 days; resolving scabs at 6 days; resolved scabs no longer contagious
Term
smallpox vaccine
Definition
live vaccinia virus; protective if given w/in a few days of exposure; if its been more than 5 years need a new vaccine
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