Gram-negative Flashcards
Gram negative
Insignificant capsule
Ferments glucose ONLY
Neisseria gonorrhoeae
Gram negative diplococci
Kidney-bean shape
Encapsulated
Ferments maltose AND glucose
Neisseria meningitidis
DOC Neisseria meningitidis
Penicillin G
MCC meningitis in ages 2-18
Neisseria meningitidis
Most severe form of meningococcemia
(+) bilateral adrenal insufficiency/destruction
Waterhouse-friderichsen syndrome
Causes of Waterhouse-Friderichsen syndrome (2)
Neisseria meningitidis Strep pneumoniae (less common)
DOC Neisseria gonorrhoeae
Ceftriaxone
Add: doxycycline (if suspect chlamidya)
Thayer-Martin medium
Neisseria gonnorhoeae
MCC urethritis
Neisseria gonorrhoeae
MCC Pelvic Inflammatory Disease (PID)
Neisseria gonorrhoeae
Fitz-Hugh-Curtis syndrome (perihepatitis)
Violin-sting adhesions
Neisseria gonorrhoeae
MCC septic arthritis in sexually active adults
Neisseria gonorrhoeae
Bordet-gengou agar
Regan-Lowe agar
Bordetella pertussis
Agar for identification of Haemophilus influenzae
Enriched CHOCOLATE AGAR with: Factor X (hemin) Factor V (NAD)
Thumb sign
Haemophilus influenzae
MCC epiglottitis
Cherry red epiglottis
Haemophilus influenzae
DOC Haemophilus influenzae
Ceftriaxone
Phase of the Bordetella pertussis natural history when there is highest population and highest yield for culture
Catarrhal phase
Natural history: incubation -> catarrhal -> paroxysmal (leukocytosis) -> convalescent
DOC Bordetella pertussis
Erythromycin
Silver stain
Charcoal yeast extract agar
Legionella pneumophila
DOC Legionella pneumophila
Macrolides (azithromycin/erythromycin)
Pontiac fever
Legionella pneumophila
Gram negative
Green metallic sheen
E. coli
Gram negative
Lactose fermenter
Urease positive
Extended spectrum beta-lactamase
Klebsiella pneumoniae
Shooting star motility
Vibrio cholerae
Comma shaped
Motile
Gram negative
Oxidase-positive
Vibrio cholerae
Comma shaped
Microaerophillic
Gram negative
(2)
Campylobacter jejuni
Helicobacter pylori