Staphylococci & Micrococci Flashcards
Gram (+) cocci in clusters, pairs, or singly
Staphylococci
Facultative anaerobes, non-motile,a nd non-spore formers
Staphylococci
Gram (+) cocci in clusters, tetrads, chains, or pairs
Micrococci
associated with skin lesions
Micrococci
more commonly isolated among immunocompromised patients
Micrococci
can be aerobic and anaerobic
Staphylococci
oxidative/nonsaccharolytic
Micrococcus
Fermentative
Staphylococci
Bacitracin/Taxo A resistant
Staphylococci
Identify if:
- Staphylococcus aureus
- Staphylococcus epidermidis
- Staphylococcus saprophyticus
- Staphylococcus lugdunensis
2nd most common cause of UTIs among young females
S. saprophyticus
Identify if:
- Staphylococcus aureus
- Staphylococcus epidermidis
- Staphylococcus saprophyticus
- Staphylococcus lugdunensis
most clinically significant
S. aureus
Identify if:
- Staphylococcus aureus
- Staphylococcus epidermidis
- Staphylococcus saprophyticus
- Staphylococcus lugdunensis
Toxic Shock Syndrome
S. aureus
Identify if:
- Staphylococcus aureus
- Staphylococcus epidermidis
- Staphylococcus saprophyticus
- Staphylococcus lugdunensis
Scalded Skin Syndrome
S. aureus
Identify if:
- Staphylococcus aureus
- Staphylococcus epidermidis
- Staphylococcus saprophyticus
- Staphylococcus lugdunensis
food poisoning, impetigo, furuncles, carbuncles
S. aureus
Identify if:
- Staphylococcus aureus
- Staphylococcus epidermidis
- Staphylococcus saprophyticus
- Staphylococcus lugdunensis
can colonize prosthetic devices or surgical devices
S. epidermidis
Identify if:
- Staphylococcus aureus
- Staphylococcus epidermidis
- Staphylococcus saprophyticus
- Staphylococcus lugdunensis
prosthetic valve endocarditis
S. epidermidis
Identify if:
- Staphylococcus aureus
- Staphylococcus epidermidis
- Staphylococcus saprophyticus
- Staphylococcus lugdunensis
stitch abscess
S. epidermidis
Identify if:
- Staphylococcus aureus
- Staphylococcus epidermidis
- Staphylococcus saprophyticus
- Staphylococcus lugdunensis
pyelonephritis and cystitis in young women and older men in catheters
S. saprophyticus
Identify if:
- Staphylococcus aureus
- Staphylococcus epidermidis
- Staphylococcus saprophyticus
- Staphylococcus lugdunensis
colony count is x < 100,000 CFU/mL
S. saprophyticus
Identify if:
- Staphylococcus aureus
- Staphylococcus epidermidis
- Staphylococcus saprophyticus
- Staphylococcus lugdunensis
endocarditis, septicemia, meningitis
S. lugdunensis
Identify if:
- Staphylococcus aureus
- Staphylococcus epidermidis
- Staphylococcus saprophyticus
- Staphylococcus lugdunensis
aggressive type of endocarditis
S. lugdunensis
Initial test used to differentiate Staphylococcus species
Coagulase test
enzyme that converts fibrinogen to fibrin
coagulase
Pathologic Determinants
antiphagocytic and binds to antibodies to block phagocytosis
Protein A
Pathologic Determinants
affects immediate and delayed hypersensitivity
Protein A
Pathologic Determinants
adhesion or enhances organism’s ability to bind to host cells and prosthetics
Capsular polysaccharide
Pathologic Determinants
endotoxin-like activity and activates complement interleukin 1
Peptidoglycan & Teichoic acids
superficial skin infection involving the epidermis and produce vesicles that crust
impetigo
small abscess on skin and subcutaneous tissue on neck and axillae; boils
furuncles
group of furuncles, more deep-seated, involves adjacent hair follicles
carbuncles