NURS 612 Exam Questions And Answers | 100% Correct Answers | 2024 Updated Solutions
_____ is any organism capable of supporting the nutritional and physical growth requirements of another organism ANS host
______ is bacteria that inhabits exposed surfaces of the body ANS microflora
_______...
NURS 612 Exam Questions And Answers | 100% Correct
Answers | 2024 Updated Solutions
_____ is any organism capable of supporting the nutritional and physical growth requirements of
another organism ANS host
______ is bacteria that inhabits exposed surfaces of the body ANS microflora
_______ is the presence and multiplication of a living organism on or within a host that does NOT
cause harm ANS colonization
_______ is the disease state brought about by the interaction of an organism living within a host that
causes harm to the host ANS infectious disease
____ is the disease inducing potential of a microbe/organism ANS virulence
_____ are microorganisms so virulent that they are rarely found in the absence of disease ANS
pathogens
_____ is a free-living organism that obtains growth from dead or decaying organic material, rarely
affect humans ANS saprophytes
______ are microorganisms that are capable of producing an infectious disease when the
health/immunity of the host have been severely weakened by illness, malnutrition, or medical therapy
ANS opportunistic pathogens
_____ is a relationship between microorganism and host in which both organisms benefit e.g.
bacteria in the gut producing Vit. K ANS mutualism
____ is a relationship between microorganism and host in which the colonizing organism acquires its
needs from the host, but without causing harm to the host ANS commensalism
,_____ is a relationship between a microorganism and host in which the microorganism acquires its
need at the expense of the host, only the infecting organism benefits ANS parasitism
_____ are protein particles that are able to transmit infection, lack a demonstrable genome, and are
resistant to antibiotics due to their lack of repro/metabolic functions ANS prions
Two examples of diseases transmitted via prions are: ANS -Creutzfeldt Jacob disease
-Kuru
Prion-based diseases are typically ______ progressing, and result in non-inflammatory neuronal
degeneration resulting in dementia, ataxia, and death ANS slow
_______ are the smallest obligate intracellular pathogens, have no organized cellular structure, and
can be composed of either DNA or RNA, but never both ANS Viruses
Viruses are composed of two parts: the _____ and _______, and require what to replicate? ANS -
capsid (protein coat)
-nucleic acid core (genome, either DNA or RNA)
They require a host cell in which to replicate, replication cannot occur outside of a living cell
____ are bacteria that lack an organized nucleus ANS prokaryotes
_____ are microorganisms that possess a membrane nucleus such as fungi ANS eukaryotes
______ are a type of fungi that are yeast at one temperature and molds at another ANS dimorphic
fungi
Examples of dimorphic fungi: ANS -blastomycosis
-histoplasmosis
-coccidiodomycosis
,_____ are long filaments utilized by molds ANS hyphae
___ are single celled fungi that reproduce by budding ANS yeasts
Bacteria are primarily classified by: ANS -shape/microscopic appearance
-presence of absence of peptidoglycan cell wall (gram+/gram-)
______ = rod bacteria ANS bacillis
_____ = spherical bacteria ANS cocci
_____ = helical bacteria ANS spirilla
_______ bacteria will stain purple in the presence of a primary dye like crystal violet ANS gram
positive
______ bacteria will not stain purple, but will stain red in the presence of a counterstain like safranin
ANS gram negative
_____ are single celled animals with defined nuclei and organelles that can cause parasitic infection
ANS protozoa
______ are worms, roundworms, flukes, etc. capable of causing parasitic infection ANS
helminths
_______ are bugs capable of causing parasitic infection ANS arthropods
Examples of organisms that combine viral and bacterial characteristics ANS -Rickettsiaceae
, -Anaplasmataceae
-Chlamydiaceae
-Coxiella
Viral: obligate intracellular pathogen
Bacterial: cell wall, asexual reproduction via cell division
Both: Contain DNA and RNA
___ is a tick born organism capable of producing Rocky Mt spotted fever and possibly lyme disease
ANS rickettsiaceae
______ is a directly transmitted organism responsible for the STI chlamydia ANS
Chlamydophila trachomatis
_______ is a disease found in a particular geographical region in which the incidence/prevalence are
relatively predictable and stable ANS endemic disease
______ is an abrupt and unexpected increase in the incidence of disease over endemic rates ANS
epidemic
_____ is the spread of disease beyond continental borders ANS pandemic
criteria used in classifying infectious diseases ANS -portal of entry
-incidence
-source
-signs/symptoms
-disease course
-site of infection
-virulence factors
Examples of portals of entry ANS -penetration (physical trauma to integument system
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