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AHN 577 Infectious Disease Part 1 With Complete Solution
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AHN 577 Infectious Disease Part 1 With Complete Solution...
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AHN 577 Infectious Disease Part 1With Complete Solution
What is SAAR? - ANSWER Standard Antimicrobial Administration Ratio
Measures observed antibiotic use compared to predicted use
Colonization - ANSWER Presence of microorganisms without tissue
invasion/damage
Gram stain - ANSWER Differentiation of bacteria based on cell wall
characteristics
Staphylococcus - gram stain and morphology - ANSWER gram positive cocci
Streptococcus - gram stain and morphology - ANSWER gram positive cocci
Enterococcus - gram stain and morphology - ANSWER gram positive cocci
Corynebacterium - gram stain and morphology - ANSWER gram positive rods
Bacillus - gram stain and morphology - ANSWER gram positive rods
Listeria - gram stain and morphology - ANSWER gram positive rods
Neisseria - gram stain and morphology - ANSWER gram negative cocci
Moxorella catarrhalis - gram stain and morphology - ANSWER gram negative
cocci
Enterobacter - gram stain and morphology - ANSWER gram negative rod
normal gut flora - gram stain and morphology - ANSWER gram negative rod
,vibrio - gram stain and morphology - ANSWER gram negative rod
Shigella - gram stain and morphology - ANSWER gram negative rod
Salmonella - gram stain and morphology - ANSWER gram negative rod
Pseudomonas - gram stain and morphology - ANSWER gram negative rod
Haemophilus - gram stain and morphology - ANSWER gram negative rod
Which bacteria are anaerobes? - ANSWER gut flora, actinomyces, bacteriodes
Which bacteria are mycobacterium? - ANSWER Tuberculosis
Which bacteria are fungi? - ANSWER candida, aspergillus
Which bacteria are rickettsia? - ANSWER RMSF
Which bacteria are parasites? - ANSWER Giardia lamblia, pneumocystis
jiroveci
Which bacteria are spirochetes? - ANSWER Treponema pallidum
Characteristics of meningitis - ANSWER -Considered ID emergency
-Inflamed meninges act like space-occupying lesions, damaging brain tissue
Common bacterial/viral causes of meningitis? - ANSWER BACTERIAL: S.
pneumonia, N. meningitides, gram negative bacilli or group B strep in age >
50
VIRAL: HSV, EBV, Varicella Zoster, Coxsackievirus
Clinical manifestations of meningitis - ANSWER Headache
Fever
Nuchal rigidity
, AMS
Positive Kernig's / Brudzinski's signs
Petechial/purpuric rash
Less likely: photophobia, seizures
Diagnosing meningitis - ANSWER Lumbar puncture - CSF for gram stain,
culture, & AFB
Empiric bacterial meningitis treatment - ANSWER Ceftriaxone and
vancomycin
(add ampicillin if Listeria is suspected)
Decadron in meningitis - ANSWER Most beneficial for S. pneumonia
Unknown benefit for N. meningitides
Prophylactic treatment for intimate contact with meningitis - ANSWER If
meningococcal meningitis is source
Treatment for viral meningitis - ANSWER Usually self-limiting; treatment
toward specific virus
Endocarditis characteristics - ANSWER Infection of valvular/endocardial
surface of heart
Etiology of endocarditis - ANSWER -Native/prosthetic valve disease
-Transient bacteremia following invasive procedures
-IV drug use
Common causative organisms of endocarditis - ANSWER S. aereus (most
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