Disease Transmission
Exogenous infections are caused by pathogenic organisms that invade the body. T or F
True
the mode of transmission for tuberculosis is __. -airborne -direct contact -droplet -indirect contact
airborne
examples of portals of entry for pathogens include___? -inhalation -ingestion -broken skin -sexual transmitted diseases -all the above
all the above
which of the following factors influence disease producing capabilities within a host? -health of the individual -virulence of the pathogen -concentration of the pathogen -duration of exposure to pathogen -all the above
all the above
which of the following is developed by the body in response to a specific antigen? -reservoir -complement -antibodies -antigen
antibodies
the material in a vaccine that stimulates an immunity response is called ___. -acidogen -antibody -antigen -antibiotic
antigen
administration of a vaccine causes ___. -passive immunity -congenital passive immunity -natural acquired immunity -artificial acquired immuntiy
artificial acquired immunity
the term used to describe the number of pathogens present is ___. -concentration -virulence -resistance -immunization
concentration
disease transmission from airborne contact in a dental setting is a result of ___. -contact with spray, splashes or spatters containing microorganisms. -contact with instruments contaminated with patients microorganisms contact with microorganisms at the source -contact with smaller droplet nuclei containing microorganisms
contact with spray, splashes or spatters containing microorganism
if a dental team member transports microorganisms on their scrubs to a contact outside o the office, this is form of what type of cross-contamination? -dental office to community -dental team to patient -patient to patient -patient to dental team
dental office to community
if the dental assistant has an open cut and is wearing gloves with a hole in them when treating a patients, what pathway for disease transmission could exist? -patient to dental team -dental team to patient - patient to patient -community to patient
dental team to patient
direct transmission is also referred to as cross-contamination. T or F
false
droplet infections are caused by smaller infectious particles compared to airborne infectious particles. T or F
false
endogenous infections occur when the body's ability to resist disease is suppressed. T or F
false
parenteral transmission is acquired through the digestive tract. T or F
false
airborne transmission may transmit HIV. T or F
fasle
which of the following has the greatest opportunity for transmission of a bloodborne pathogen? -from one dental patient to another dental patient -from on dental healthcare personnel to patient -from dental healthcare personnel to dental team -from dental patient to dental healthcare personnel
from dental patient to dental healthcare personnel
which of the following is/are indirect means of disease transmission? -contact with an infected lesion -direct blood to blood contact -inhalation through the respiratory system -handling a contaminated instrument and then touching your face
handling a contaminated instrument and then touching your face
the ability of the body to resist an infectious disease is ___. -immunity -resistance - etiology -concentration
immunity
Microbes spreading from a patient's mouth to your hand and then to another patient's mouth represents what type of spread from patient to patient? -direct contact -airborne infection -droplet infection -indirect contact
indirect contact
which of the following is/are example of passive immunity? -mother passes antibodies to fetus -eating contaminated food -administration of vaccination -contracting the disease
mother passes antibodies to fetus
immunity that results from contracting the infectious disease is ___? -natural acquired immunity -artificial immunity -passive immunity -active immunity
naturally acquired immunity
which of the following is a means of bloodborne transmission? -aerosol spray -needle stick -inhaling droplet -drinking water
needle stick
which of the following describes characteristics of "carrier" transmission? -obtain form an individual who has previously had the disease -caused by noscomial infection -infected by an individual who is asymptomatic -transmitted by contaminated food - both A and C
obtained from an individual who has previously had the disease, infected by an individual who is asymptomatic
which of the following describes disease transmission through the break in the skin? -ingestion -aerosol spray -parenteral -autogenous
parenteral
the goal of infection control is to ___. -prevent all pathogenic microbes form entering the office -reduce the dose of microorganisms that may be shared between individuals - eliminate all microbes in the office -sterilize all operatory surfaces between patients
reduce the dose of microorganisms that may be shared between individuals
which of the following may be contracted by eating contaminated food? -HIV -hepatitis B - tuberculosis -salmonella
salmonella
Oral/fecal contamination is often transmitted by food. T or F
true
an infectious agent must leave source or reservoir to infect another person. T or F
true
antibodies developed by the body protect the individual from future infection. T or F
true
dental caries is an endogenous infectious disease. T or F
true
the best way to minimize the formation of droplets, spatter and aerosols is using the high volume oral evacuator. T or F
true
the dental high-speed hand piece cause aerosols which can cause airborne infection. T or F
true
the most effective way to prevent the spread of influenza is by ___. -engineering controls -work practice controls -vaccination -hand washing
vaccination
Aerosol spray is a means of bloodborne transmission. T or F
False