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28 Cards in this Set
- Front
- Back
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What are some examples of Reservoirs?
(primary habitat in which the infectious agent can be found and from which infection may result) |
human
animal soil water |
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This type of carrier carries the infectious agent from an infected person to another non-infected person (nurse)
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Passive
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T/F: carriers may be asymptomatic and in various stages of disease.
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True
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This type of carrier spreads disease befor symptoms
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Acute carrier
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This type of carrier remains infected and spreads the disease for extended periods.
They are often asymptomatic |
Chronic Carrier
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What are examples of Direct Contact- Horizontal?
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Person-to-Person
Handshake, sneeze, sex Self-to-self fecal-oral |
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What are some examples of Direct contact-Vertical?
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Parent to child
Breast feeding, crossing the placenta |
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What are two indirect methods of Transmission?
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Vehicle and Vector
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This method of transmission is via contaminated NON-LIVING material
ex. air, water, food |
Vehicle
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This method of transmission is via LIVING organisms that transmit infectious organisms
ex. flea, tick, lice, dog |
Vector
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These are NONLIVING objects that harbor and transmit an infectious agent
ex. bedding, doorknobs |
Fomites
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T/F: Mechanical Indirect Vectors use Active transmission of the Pathogen
ex. insect bite |
False.. Biological/Direct is like an insect bite.
Mechanical is Parrive transmission like a a fly feeds on garbage then lands on food. |
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T/F: Mechanical Vectors are not infected. Biological vectors are infected
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True
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In this Electron Microscopy e- pass through
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Transmission Electron micrograph (TEM)
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In this electron microscopy e- bounce off
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Scanning electron Micrograph (SEM)
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______ staining uses a single dye
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Simple
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________ staining uses to or more dyes and is used for Gram-negetive or Gram-positive
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Differential
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Gram stain seperates bactoeria into 2 major groups based on what?
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Cell Wall structure
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T/F: Penicillin may be used to treat MRSA
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FALSE! MSRA doesn't have cell wall.
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What is the DOC for MRSA?
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Erythromycin
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For Blood cultures, a minimum of __ samples over a 24 hr period must be taken
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3
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S. Aureus is a must for this Testing
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Antimicrobial testing
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THis si the LOWEST concentration of the drug that can INHIBIT growth of the Organism
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Minimum Inhibitory Concentration (MIC)
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This is the LOWEST concentration of the drug that will KILL 99.9% of the organisms
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Minumum Vactericidal Concentration (MBC)
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This is used in the disc diffusion test and is the area around the disc where bacteris did not grow.
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Zone of Inhibition
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What are some things that affect Zone size in a Disc Diffusion?
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Molecular size of Agent
solubility in water stability of the agent speed at which it grows |
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This Antimicrobial test provides clinicans with MIC based on where the zone of inhibition meets the strip
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E-Test
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This test includes strips of paper that are impregnated with VARIOUS concentrations of a single drug.
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E-Test
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