Microbiology&infection TCDHA midterm Correct 100%

Major source of disease agents - ANSWERmouth How do we control the spread of pathogens in the office? - ANSWERstandard precautions Asepsis - ANSWERThe absence of infection or infectious materials or agents Cross-Contamination - ANSWERA process that allows transfer of microorganisms between persons and environmental surfaces Universal Precautions - ANSWERconsider all clients as being infected with blood borne pathogens and therefore applying infection control procedures to the care of all clients direct contact - ANSWERContact with microorganisms at the source as in the clients mouth indirect contact - ANSWERContact with items contaminated with a clients microorganisms droplet infection - ANSWERContact with sprays, splashes, aerosols or splatter containing microorganisms airborne infection - ANSWERsmaller particles, can remain airborne for hours Sterilization - ANSWERdestroy/kill all mo's in a material or on an object Disinfection - ANSWERprocess that destroys mo's, not spores & viruses Bactericidal - ANSWERagent that kills bacteria Bacteriostatic - ANSWERstops growth of bacteria. Pasteurization - ANSWERheat process employed to reduce # of bacteria and destroy pathogens Lyophilization - ANSWERa process of preserving microbes from a substance by removing the water, rapidly freezing, then drying it by using a vacuum pump SPORES - ANSWERBacteria that develop a defense mechanism against death three common types of sterilization - ANSWERheat, gas, liquid Thermophiles - ANSWERheat loving bacteria Psychrophiles - ANSWERcold loving bacteria Obligate Aerobes - ANSWERgrow in presence of oxygen Obligate Anaerobes - ANSWERgrow in absence of oxygen Facultative Anaerobes - ANSWERgrow in the presence or absence of oxygen Microaerophiles - ANSWERcan only tolerate a certain % of oxygen ACIDOGENIC - ANSWERbacteria that produce acid during growth Halophilic Bacteria - ANSWERsodium chloride loving bacteria Haloduric Bacteria - ANSWERsodium chloride hating bacteria Halophiles - ANSWERSalt loving bacteria Osomotolerant - ANSWERmo's which can grow at relatively high salt concentration Saccharophiles - ANSWERrequires high sugar as an osmotic regulator instead of salt Antimicrobial - ANSWERterm used to designate all the categories of drugs used to treat infections. Resident skin flora - ANSWERcannot be removed totally with surgical scrub Transient flora - ANSWERserves as source of disease Endogenous Bacteria - ANSWERNormally resides on or in body without causing harm but Has disease-producing potential Heat-resistant gloves are designed for which task? - ANSWERUnloading sterilizers Which benefit is associated with properly fitted exam gloves? - ANSWERPrevents hand fatigue Which protective barrier is donned last, before treating a client? - ANSWERgloves Which step is first in the chain of chairside asepsis? - ANSWERplace patients bib _____