Flashcards in Micro Deck (14):
What are residents micro organisms?
Normal flora on body in epidermis brought to skin by sweating, secretions
What are transient micro organisms?
Transportable and can be picked up and passed on to others. Can be removed by mechanical cleansing.
What are pathogens?
Micro organisms capable of producing infection in favourable conditions.
What is contamination?
Presence of micro organisms. Can be animate or inanimate objects
Name 6 of the 11 ways bacteria can be classified
Mobility or motility
Presence or absence of spores
How it colonizes
Antibody detection in host
Metabolism and atmosphere requirements
Sensitivity to exogenous chemicals or substances
What are the body's three lines of defence?
Immunity (passive and active)
What are intact barriers?
Skin, mucous membranes, reflexes, sneeze, genitourinary/reproductive tracts, eyes, cellular level, stomach acid, and muscular closure of orifices
What are the three second lines of defence
Explain passive and active immunity
Passive- antibody is introduced into the body. There is no memory for replication.
Active- Iive, dead, or attenuated organism is introduced and triggers an antibody response. Memory is formed to produce antibodies against. Booster may be required.
How can microorganisms be transmitted?
Contact (direct or indirect)
Vector borne(via arthropod)
What are Classifications of microorganism?
Common operating room bugs?
Staphylococci - MRSA
Escherichia Coli - urinary tract infect, GI
Pseudomonas - urinary, intestinal, water (loves water)
Serratia marcescens- urinary Tract, wound
Major sources of contamination in or