HACEK Flashcards
(43 cards)
HACEK characteristics
Gram negative coccobaccili
Causes SBE
HACEK: Normal flora of oral cavity
H.parainfluenzae
HACEK: Normal flora; previously under Haemophilus
Aggregatibacter aphrophilus
HACEK: Star shaped colonies, usually with A. Israeli
Aggregatibacter actinomycetemcommitans
HACEK: twitching motility
Kingella kingae
Kingella kingae is found in
Bone and heart
HACEK: forms rosette in gram stain
Cardiobacterium hominis
HACEK:
Non-fermenters
Oxizider: Forms acid under aerobic
NOT NORMAL FLORA
Genus Pseudomonas
Genus Stenotrophomonas
Genus Burkholderia
Genus Acinetobacter
Most common non-fermenter
Pseudomonas aeruginosa
1 ICU isolated (nosocomial infection)
P. Aeruginosa
P. Aeruginosa: Clinical significance
Pneumonia in patient w/ cystic fibrosis
Jacuzzi/hot tub syndrome
Ecthyema gangrenosum
P. Aeruginosa: General characteristics
Strict aerobe
Oxidase positive
Beta hemolytic on BAP
P. Aeruginosa: Odor
Old riped grapes
Taco-tortilla
P. Aeruginosa: Medium
Centrimide agar
Non-motile and Oxidase (-)
Acinetobacter
Causes Glander’s disease
B. Mallei/ Glander’s bacillus
With earthy odor at ashdown media
B. Pseudomallei
Whitmore bacillus
Clinical significance of Whitmore bacillus
Mellioidosis
Vietnam time bomb
Hacek that has WRINKLED COLONY
Pseudomonas stutzeri
B. Pseudomallei
Associated with Transfusion septicemia
P. Fluorescence
P. Putida
P. Fluorescence and P.putida develop
Pyoverdine
Pyoverdine and Pyocyanin is produced by
P. Aeruginosa
Test to differentiate P. Fluorescence to P. Putida is
Gelatin Hydrolysis Test
Fluorescence (+)
Putida (-)
Component of Hugh and Leifson (OF)
High CHO
Low peptone