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Flashcards in Objective 2 Deck (16):
1

What is the total elimination of a population of microorganisms called?

sterilization

2

What is incapable of growing anywhere but within living cells?

viruses

3

What prevents new contaminants from growing in unopened containers because it contains a bacterial agent?

preservative

4

What types of diseases are classified as being able to be passed from person to person are considered?

infectious

5

What produces recurring episodes of small, painful, fluid-filled blisters on the skin or mucous membranes?

Herpes simplex

6

What is the barrier called that is found on the inside of contact lens cases and is produced by bacteria to protect the organism from a variety of stressful situations such as nutrient deprivation and chemical attack?

biofilm

7

What is a leading cause of death in North America among the 25 to 44 age population?

HIV

8

What is something you can do in your office and teach your patients to do as the first line of defence against the spread of diseases?

hand washing

9

What do patients who wear extended wear lenses have a much greater chance of developing than patients who do not sleep in lenses?

corneal ulcers

10

What type of disinfection may contain Thimerosal and chlorhexidine?

chemical

11

When storing trial lenses in your office, how often must they must be disinfected?

monthly

12

What is the ability, with which an organism invades a host, evades defences and multiplies called?

virulence

13

DNA viruses include herpes, warts, pox and adenoviruses, which consist of colds, conjunctivitis and upper respiratory infections. What viruses include measles, mumps, polio and flu?

RNA

14

What are drugs that kill bacteria referred to?

bactericidal

15

What are drugs that only stop the reproduction and proliferation of bacteria referred to?

bacteriostatic

16

The 1st and 3rd trimester of pregnancy may cause hormonal changes that affect the ______ and refractive error.

tear layer