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Infectious diseases

patho

QuestionAnswer
human or animal colonized by pathogen host
microorganisms capable of causing infectious disease pathogen
invasion, colonization, and multiplication of pathogens infection
virulence: ability to produce disease
resovoir: source of pathogen
epidemiology: study of disease distributions
incidence: number of NEW infection cases ex: news of covid outbreak in a nursing home
prevalence: number of ongoing infections
When is a disease considered endemic? when incidence and prevalence are stable
epidemic: abrupt increase in incidence in location
pandemic: global spread of disease
immunoglobulins found on the surface of B cells; they may be undifferentiated and provide general defense initially
when do normal microbial flora become an issue? when they invade areas they are not supposed to be in ex: staph is on our skin but it causes illness when in our blood
list the 9 portals of entry into the body: -skin -respiratory tract -GI tract -urinary tract -reproductive tract -blood -maternal-fetal -eyes -open wounds
what are the 5 stages of infection? 1)incubation 2)prodromal 3)acute 4)convalescent 5)resolution
describe the incubation stage of infection: -microbes begin replication -no symptoms shown -can range from 24 hours to a few months -can be contagious in this stage
describe the prodromal stage of infection: -initial symptoms appear, often vague and general -person is highly contagious
describe the acute stage of infection: -full infectious disease signs and symptoms are present -immune system is fully engaged -highly contagious
describe the convalescent stage of infection: -body is containing the infection and eliminating the pathogens -can last days-months
describe the resolution stage of infection: pathogen is eliminated from the body
what is the most common clinical microbiology stain? gram stain
what are 3 ways we can prevent infectious diseases as nurses? -washing hands -disinfecting equipment before and after use -vaccines
staphylococcus aureus: -gram-positive bacteria -is the leading cause of health care-associated infections -can invade almost every system in the body
what are 2 examples of antibiotic resistance to S. aureus? -MRSA -VRSA
group A beta hemolytic streptococcus (GABHS): -harmful because it produces toxins -can evade the immune system -can cause complication post-infection
what parts of the body can GABHS affect? (6) -throat -skin -lungs -blood -heart -kidneys
pesudomonas aeruginosa: -gram-negative bacteria -most common bacteria found in patients after being in the hospital for over a week
what are the the 6 portals of entry for P. aeruginosa? -skin -respiratory tract -GI tract -urinary tract -eyes -open wounds
list the 9 symptoms for bacterial meningitis: -nuchal rigidity -nausea -headache -rash -v+ -fever -photophobia -seizures -confusion
what are the 2 tests for meningitis? Kernig's sign and Brudzinski's sign
Kernig's sign: pt lies on back and bends one leg. doctor will straighten that leg, if it hurts that is a sign
Brudzinski's sign: pt lies on back with legs straight. If pt bends their knees while doctor is passively flexing their neck, it is a sign
what is used to diagnose meningitis? lumbar puncture
what bacteria is the most common cause of UTIs in women? E. coli
hemolytic uremic syndrome (HUS): affects the kidneys and blood clotting system, so small blood vessels become damaged and inflamed. This damage can cause clots to form in the vessels. The clots then clog the filtering system in the kidneys, leading to kidney failure.
this bacterium is spore-forming and will not be killed with hand sanitizer: Clostridium difficile
symptoms of clostridium difficile: (3) -unlimmmmmited D+ -abdominal pain -fever
who is at risk for getting C. difficile? (1) after someone has gone through long-term antibiotic use (disrupts normal microbiome)
how is COVID-19 spread? (1) droplet transmission
list the 10 symptoms for COVID-19: -weakness -headache -anosmia -V+ -D+ -nausea -dyspnea -rhinorrhea -dry cough -fever
list the labs/diagnosis of COVID-19: (8) -lymphopenia -elevated ESR -elevated CRP -elevated TNF alpha -elevated interleukins -chest x-ray (CXR) -CT scan -PCR test via nasal swab
what are the ways influenza type A can be spread? (3) -respiratory droplets -direct contact -indirect contact
list the 6 symptoms for influenza type A: -fever -chills -headache -myalgia -cough -pharyngeal irritation
who is at risk for a fungal infection? (3) -immunocompromised -diabetics -those on long-term antibiotics
what are the 4 types of localized candida infections? -C. albicans -thrush/oropharyngeal candidiasis -vulvovaginal candidiasis -balanitis (infection of penis)
what type of candida infection is most common in GI and vaginal tracts? C. albicans
what symptoms does thrush/oropharyngeal candidiasis cause? (3) -dry mouth -fluffy white lesions on tongue -loss of taste
what symptoms does vulvovaginal candidiasis cause? (4) -itching -painful sex -discharge -dysuria
what symptoms does balanitis cause? (2) severe burning and itching that spreads to thighs, booty, and scrotum
what are the primary hosts of toxoplasmosis? cats :(
what 2 ways is toxoplasmosis spread? -raw meat contamination -cat poop
who is at a higher risk for toxoplasmosis? (2) -immunocompromised -pregnant women if you are pregnant and have a cat, don't scoop out the litter box
what is an example of a prion in animals and humans? mad cow disease
how is mad cow disease spread? through meat and bone meal that is fed to cattle
Created by: akgross
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