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Someones Micro

3 groups of microbes found as normal flora on the skin diptheroids, Staphylococci, Fungi-Yeasts
Exfoliatin toxin produced by S. aureus, seperates the skin, scalded skin syndrome
2 species that cause impetigo Streptococcus Pyogenes and Staphylococcus aureus
Pyoderma Pus and skin
potential complication of pyodermas caused by Streptococcus species Glomerulonephritis
how long must the tick feed before Rickettsia rickettsii can be transmitted? 4 to 10 hours
What disease does the species Rickettsia rickettsii cause Rocky mountain spotted fever
zoonois disease o animals that are transmitted to humans
What is the scientific name for the rash in lyme disease erytherma migrans
What species causes Lyme disease? Borrelia burgdorferi
What secondary complications are associated with Rubeola or measles? Subacute sclerosing panencephalitis
What is Rubella? German Measles or 3 day measles
What are the symptoms for Rubella? slight fever mild cold symptoms enlarged lymph nodes and faint rash
In what patient does Rubellas cause severe disease? Pregnant women
Wounds that are relatively anaerobic, is this a dangerous aspect of wounds? Yes, because it allows for colonization by dangerous anaerobic pathogens such as Clostridium tetni
What species is the leading cause of wound infections? Staphylococcus
Waht species commonly infects intavenous devices? Staphylococcus epidermdis
What protects S. epidermdis from attack by phagocytes? Glycocalyx
What species causes Necrotizing fasciitis Streptococcus pyogenes
How is Necrotizing fasciitis treated to prevent fatal complications? Urgent surgery amputation
Why are antibacterial medications not effective for treating necrotizing fasciitis? because of toxins
What types of wound infections are frequently associated with Pseudononas aeruginosa? Nosocomial infections, burns, etc.
What are typical symptoms of a Pseudomonas aeruginosa infection? a green color from pigment
Why is a pseudomonas aeruginosa infection hard to treat? toxins and are usually resistant to antimicrobial medications
What is the treatment for tetanus? anti-toxin treatment
What treatment is necessary fro gas gangrene Prompt surgical removal of all dead and infected tissues
What is the epidemiology of sporotrichosis? Worldwide, mostly warmer regions a disease of farmers carpenters green house workers, people who deal with plants, children who play in hay
How could normal flora be helpful to the host? competes and fights off pathogens
What is the function of bacterial endospores? survival
3 sites on the human body that are normally colonized by staphylococci nose, skin and ears
3 skin infections cause By Staphylococcus aureus Scalded skin syndrome, hair follicle infections, impetigo
3 skin infections caused by Streptococcus pyogenes Necrotizing faciitis, strep-throat, scarlet fever, streptococcal impetigo
what test is used to quickly distinguish between the Staphylococci and Streptococci Catalase Staph + Strep -
What test may be used to determine between S. aureus and S. epidermidis? Coagulase, S. aureus is a primary pathogen
Is the normal flora of the upper respiratory tract harmful of beneficial to the human host? beneficial, because it competes with more dangerous pathogens
Would a direct gram stain of a sputum specimen beo of any immediate value to the physician in choosing treatment fro a patient with pneumonia? yes can help determine the organism to be treated
Does antimicrobial therapy have any effect on the body's normal flora? yes antimicrobials can cause superinfections cause overgrowth of a normally harmless bacteria, diarrhea or yeast infections
Why is penicillin a potential treatment for S. pneumoniae but not for K. pneumoniae becaus penicillin does not work on gram negative Rods
Why is Mac usuful in the primary isolation fo Klebsiella pneumoniae because it is selective for gram neg enteric rods
Why is a direct smear of CSF essential when bacterial meningitis is suspected CSF is sterile and needs to be checked for the presence of m.o. which will indicate an infection
can N. meningitidis be easily differentiated from Streptococcus pneumonia based on microscopic morphology and gram reaction? N. meningitidis is Gram neg. while Streptococcus is gram + cocci arranged in chains
Which serotype of Haemophilus influenzae is responsible for most cases of serious disease caused by this species? type B
How is Haemophilus influenzae prevented today? cojugate vaccines
What is the most frequent cuse of neningitis in children between the ages of 2 and 18? Neisseria meningitidis
What is the most frequent cuse of meningitis in neonates? group b streptococcus
What is the most frequent cuse of meningitis in toddlers Streptococcus pneumoniae
What is the most frequent cuse of meningitis in adults Streptococcus pneumoniae
What si the only human pathogen that prefrentially attacks the peripeheral nerves? Mycobacterium leprae
What disease does Mycobacterium leprae cause? Hansens disease or Leporsy
3 viruses that cause viral meningitis mumps, coxsackie virus and echoviruss
Which is the most common virus to cause viral meningitis coxsackie -fecal-oral route
What is viremia? viruses circulating through the blood
3 viruses that causes viral encephalitis? herpes simplex virus, mumps measles mononucleoses
What virus causes most reported cases of viral encephalitis in the U.S. herpes simplex virus type 1
What is the characteristic feature fo poliomyelitis? selective destruction of motor nere cells
Does a patient lose sensations of feelings in affected limbs poliomyelitis? no the lose movement not sensation
How is polio prevented? vaccine
When is polio expected to be eradicated 2005
Why is rabies now rare in humans when is so common in wildlife? pet vaccination
What species causes streptococcal pharyngitis and from which group Streptococcus pyogenes Group A
How is streptococcal pharyngitis transmitted? through coughing sneezing esp. in close range
What are 2 late complications of streptococcal pharynigitis acute glomerulonephritis and acute rheumatic fever
What species causes diphtheria Corynebacteruim diphtheria
What substance actually mediates diphtheria? diphtheria toxin
What is the leading cause of pneumonia in college students and military recruits? Mycoplasmal pneumonia
what is Mycoplasmal pneumonia formly known as? walking pneumonia
What is another name for whooping cough>? Pertussis
How many deaths occur worldwid due to pertussis? 300,000 to 500,000
How is pertussis prevented vaccine DPT
What species most commonly causes tuberculosis? Mycobacterium turerculosis
How is tuberculosis spread? through inhaling airborne organisms from a person with TB
What vaccine is used for TB in other parts of the world but not in US BCG, because it will show a postive on TB test
What is the test for TB? Mantoux Test
What species causes Legionnaire's disease? Legionella pneumophila
How is legionnaire's disease transmitted? by breathing aerosolized water contaminated with the organism
How is legionairres disease treated erythromycin
Why are so many deaths from influenza when it is generally a mild disease bacterial secondary infections
What strain of influenza resulted in a pandemic in the early part of the 20th century spanish flu
What is the source fo the virus that causes hantavirus pulmonary syndrome? Rodents
How is hantavirus treansmitted? by inhalation of dust contaminated with the urine, feces or saliva of infected rodents
Catalase test a test in which hydrogen peroxide is added to culture on a slide, gas produced is postive bubbles present, enzyme catalase is present
Coagulase a test in which organisms are mixed with plasma in a test tube if cells clump together postive
Commensals organisms that live togehter in close association and may or may not benefit each other
Penicillin Vancomycin Cell wall synthesis
Tetracycline, Gentamicin, Erythromycin, Chloramphenicol protein synthesis
Ciprofloxacin nucleic acid synthesis
Sulfonamide and Trimethorprim cellular metabolism
polymoxins cytoplasmic membrane
antibodies immunoglobulin proteins whch cirulate in blood and lymph fluid produced by the body for protection against microorganisms
bactericidal agent that kills bacteria
bacteriostatic static effect on bacteria, inhibits growth until removed will then resume growth
antimicrobial resistance ability of microbes to overcome harmful effects of antimicrobial agents
antimicrobial susceptibility microbes are unable to overcome the harmful effects of antimicrobial agents and are killed
antimicrobial agent any agent which functions to kill or inhibit microbial growth includes sythetic drugs as well as antibiotics
antibiotics antimicrobial drugs naturally produced by microorganisms
chemotherapy the treatment fo disease by use of chemicals
minimum inhibitory concentration the lowest concentration of a specific drug that prevents the growth
in vitro outside the body
in vivo inside the body
Created by: netangel29