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pseudomonas/hemophil

MedMicro 2006 UTHSCmed

QuestionAnswer
Pseudomonas aeruginosa Shape Small bacillus
Pseudomonas aeruginosa Aerobicity Strict aerobe
Pseudomonas aeruginosa Oxidase +/-? Oxidase +
Pseudomonas aeruginosa Fermeter NON-ferneting
Pseudomonas aeruginosa Motility Polar flagella
Pseudomonas aeruginosa Temperature 4-42 C
Pseudomonas aeruginosa Virulence Factors Complex regulation: capsule, pili, LPS, pyocyanin; exotoxin A, elastase, rhamnolipid, phospholipase C
Pseudomonas aeruginosa Reservoir Plants and animals, biofilms
Pseudomonas aeruginosa Lab Diagnosis Culture, colony, oxidse; VERY nonfastidious
Pseudomonas aeruginosa Treatment Multiple antibiotics: highly resistant
Pseudomonas aeruginosa Prevention/Control Difficult; prevent contamination of sterile equiptment
Pseudomonas aeruginosa NOTES: Beta-hemolytic
Haemophilus influenzae Shape Pleomorph: rod to coccobacillus
Haemophilus influenzae Aerobicity Facultative anaerobe
Haemophilus influenzae Oxidase +/-? Oxidase +
Haemophilus influenzae Motility NON-motile
Haemophilus influenzae Virulence Factors Tybe b capsule (PRP); adhesion pili (non-encapsulated); LPS, IgA protease, hemolysins
Haemophilus influenzae Pathophysiology Droplet inhalation:colonizes nasopharynx, spreads to CNS
Haemophilus influenzae Reservoir Humans
Haemophilus influenzae Diseases Meningitis, epiglottitis (encapsulated); otitis media, bronchitis, sinusitis (no capsule)
Haemophilus influenzae Specimen Blood, CSF, other
Haemophilus influenzae Lab Diagnosis Gram stain, culture, agglutination
Haemophilus influenzae Treatment Ampicillin and chloramphenicol
Haemophilus influenzae Prevention/Control Hib vaccine, refampin prophylaxis
Haemophilus influenzae NOTES: Obligate parasite. Most common in 6-18 month old children
Pseudomonas aeruginosa Pathophysiology Opportunistic pathogen, likes indwelling devices
H. parainfluenzaie= Bacteremia, endocarditis, rare opportunistic infection, Lab diagnosis X & V, CO2
H. haemolyticus and parahaemolyticus= Upper and lower respiratory tract infection, rare opportunistic infection, Lab diagnosis X & V, CO2
H. aphrophilus= endocarditis (elderly),rare opportunistic infection, Lab diagnosis X & V, CO2
H. ducreyi= STD chancroid genital ulcer, rare opportunistic infection, Lab diagnosis X & V, CO2
Created by: Garzilla
 

 



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