How can we help?

You can also find more resources in our Help Center.

48 terms

Test 2

Microbiology
STUDY
PLAY
Infections occur when a person
swallows microbes in or on food
all infectious diseases are caused by
microorganisms or their products
Natural passive acquired immunity would result from
ingesting colostrums
Artificial passive acquired immunity would result from-receiving a
gamma globulin
injection
The stage of an infectious disease when specific signs and symptoms are seen and the
pathogen is at peak activity is-
period of illness.
The time from when pathogen first enters the body and begins to multiply until
symptoms first appear is the
incubation period.
The initial brief period of early general symptoms such as fatigue and muscle aches is
the
prodromal stage.
The subjective evidence of disease sensed by the patient is termed
symptom.
The objective measurable evidence of disease evaluated by an observer is termed
-sign.
The study of frequency and distribution of disease in a defined population is
epidemiology.
The number of new cases of disease in a population over a specific period of time
compared with the healthy population is
incidence rate.
A disease that has a study frequency over time in a population
endemic.
The primary natural habitat of a pathogen where it continues to exist is called
reservoirs.
Someone who inconspicuously harbors a pathogen and spreads it to other is
carrier.
An animal such as an arthropod that transmits a pathogen from one host to another is
vector.
An inamimate object that harbor and transmits a pathogen is a-
fomite.
Which of following is an example of vertical transmission-
mother transmitting syphilis
to her fetus
Reservoirs include
humans, animals soil and water.
Which portal of entry is the most commonly used by a pathogen
respiratory.
The process that destroys or removes all microorganisms and microbial form including
bacteria
sterilization.
The process of using a cleansing technique to mechanically remove and reduce
microorganisms and debris to safe level
disinfection.
The use of chemical agents directly on exposed body surfaces to destroy or inhibit
vegetative pathogens
antisepsis.
Sterilization is achieved by
steam autoclave.
Disinfection of beverages, such as apple juice, milk and wine is optimally achieved by
pasteurization.
Substances that are naturally produced by certain microorganisms that can inhibit or destroy other microorganisms are called
antibiotics.
Antimicrobics effective against a wide variety of microbial types are termed
-broad spectrum
drugs
Important characteristics of antimicrobic drugs include
readily delivered to the site
of infection, high toxicity against microbial cells, do no cause serious side effects in
humans and remains active in body tissues and fluids
There are fewer antifungal, antiprotozoan and antihelminth drugs compare to
antibacterial these organism
are so similar to human cells that drug selective toxicity
is difficult
The cellular basis for bacterial resistance to antimicrobics include-
include-bacterial
chromosomal mutations, synthesis of enzymes that alter drug structure, prevention of
drug entry into the cell and alteration of drug receptors on cell targets.
Antimicrobics effective against only gram positive bacteria would be termed-
narrow spectrum
drugs
The surgeon who advocated using disinfectants on hands and in the air prior to surgery
Joseph Lister.
When placed into a hypertonic solution a bacterial cell will
-shrink.
The goal of medical asepsis is to kill pathogens, whereas the goal of surgical asepsis is to
kill
all microorganism
Which of the following is least likely to be taken into consideration when deciding which
antibiotic to prescribed for a patient
patients weight.
Which of the following is least likely to lead to drug resistance in bacteria
receiving a
gene that codes for the production of a capsule.
Which one of the following is not a common mechanism by which antimicrobial agents
kill or inhibit thel growth of bacteria
destruction of capsules.
Which of the following scientists discovered penicillin
Alexander Fleming.
Which of the following virulence factors enables bacteria to avoid phagocytosis by white
blood cells-
capsule.
Which of the following terms best describe chlamydial genital infection in the United
States
epidemic disease.
Which of the following are considered reservoirs of infection-carriers
contaminated
food and water and rabid animals.
Which of the following arthropods is the vector of Lyme disease
tick.
The most common zoonotic disease in the U.S.
Lyme disease.
A pandemic disease is a disease that is occurring
in epidemic proportions in many
countries simultaneously.
An example of a fomite would be
a drinking glass used by a patient, wound dressings
and soiled bed linens
Which of the following virulence factors enables bacteria to attach to tissues
pili.
All clinical specimens submitted to the Clinical Microbiology Lab must be-
properly and
carefully collected, properly labeled and properly transported to the laboratory.
Who is the primarily responsible for the quality of specimens submitted to the CML
(Lab
the person who collects the specimen.
When collecting a clean-catch, mid-stream urine the purpose of collecting in the middle
portion of the urine is
microorganisms that inhabit the urethral opening are flushed
away.