Microbiology: Bacteriology Flashcards
Which staphylococci are novobiocin sensitive?
NO StRES
Novobiocin
Saprophyticus - Resistant
Epidermidis - Sensitive
Which streptococci are bacitracin sensitive?
B-BRAS
Bacitracin
Group B - Resistant
Group A - Sensitive
Jones Criteria for Acute Rheumatic Fever (Major)
Si Jones may PECCS
Polyarthritis Erythema marginatum Chorea (Syndenham) Carditis (pancarditis) Subcutaneous nodules
Optochin sensitive Streptococci
OVeRPaSs
Optochin
Viridans -Resistant
Pneumoniae - Sensitive
What is the Quellung reaction?
Swelling of the S. pneumo capsule
Quellung = Swellung
Enumerate the Encapsulated Bacteria
Some Killers Have Pretty Nice and Shiny Bodies
S. pneumoniae K. pneumoniae H. influenzae P. aeruginosa N. meningitidis S. typhi B Group Streptococci
Which streptococci are bile and optochin resistant?
Viridans (S. mutans and S. sanguis) streptococci live in the mouth because they are NOT AFRAID OF THE CHIN (op-to-chin)
Triad of Botulism
- Symmetric descending flaccid paralysis (with prominent bulbar involvement)
- Absence of fever
- Intact sensorium
The typical progression of symptoms (in order of appearance) in a botulinum neurotoxin poisoning patient
Dozen D’s
Dry mouth Diplopia Dilated pupils Droopy eyes Droopy face Diminished gag reflex Dysphagia Dysarthria Dysphonia Difficulty lifting the head Descending paralysis Diaphragmatic paralysis
Clostridium species and their diseases
C. TETani = Tetanic paralysis
C. BOTulinum = Botulism from bad BOTtles of food
C. PERFringens = PERForates a gangrenous leg (gas gangrene)
C. DIfficile = DIarrhea
ABCDEFG of Diphtheria
ADP-ribosylation Beta-prophage Corynebacterium Diphtheriae Elongation factor-2 Granules (metachromatic)
ABCDE of Beta-Prophage encoded toxins of C. diphtheriae
ShigA-like toxins (EHEC) Botulinum toxin Cholera toxin Diphtheria toxin Erythrogenic toxin (S. pyogenes)
Gram negative cocci differentiation
Neisseria MeninGitidis
ferments both Maltose and Glucose
Neisseria GOnorrheae
ferments Glucose Only
Human bite infections and culture-negative subacute bacterial endocarditis in patients with pre-existing heart disease
HACEK Organisms
nagha-HACEK ng lagim sa may mga sakit sa puso
Haemophilus aphrophilus Actinobacillus actinomycetecomitans Cardiobacterium hominis Eikenella corrodens Kingella kingae
Compare epiglottitis with laryngotracheobronchitis
Etiology
Radiographic sign
Treatment
HiB
thumb sign
Ceftriaxone
Parainfluenza 1 & 2
steeple sign
Aerosolized racemic epinephrine
H. influenzae causes
HaEMOPhilus influenzae causes
Epiglottitis
Meningitis
Otitis media
Pneumonia
Facultative Intracellular Bacteria
Some Bugs May Live FactultativeLY Salmonella Brucella Mycobacterium Listeria Francisella Legionella Yersinia
Top 3 bacterial causes of neonatal meningitis
BEL has neonatal meningitis
- B Group streptococci (S. agalactiae)
- E. coli* (most common cause of community-acquired UTI)
- L. monocytogenes
*Globally, but in the Philippines, E. coli is the most common cause. Assume global unless otherwise stated.
Grown on Eosin Methylene Blue (EMB) agar
E. coli
Lactose Fermenters
LaCtose is KEE. Grown in MacConKEE agar. Citrobacter Klebsiella Escherichia coli Enterobacter
Enumerate Enterobacteriaceae
Think MESSY SPECK
Morganella Escherichia Shigella Salmonella Yersinia
Serratia Proteus Enterobacter Citrobacter Klebsiella