GRAM-POSITIVE ORGANISMS I Flashcards
Grape-like clusters
COCCI – STAPHYLOCOCCI
“saprophytic”
Staphylococcus saprophyticus
common cause of uncomplicated urinary tract infections, especially in young sexually active females
Staphylococcus saprophyticus
part of the normal human flora that colonizes the perineum, rectum, urethra, cervix, and gastrointestinal tract
Staphylococcus saprophyticus
thrives in dead or decaying matter
Staphylococcus saprophyticus
90% normal flora of skin but can become infectious once inside the human host.
Staphylococcus epidermis
primary cause of nosocomial infection
Staphylococcus aureus
most dangerous of all of the many common staphylococcal bacteria
Staphylococcus aureus
often cause skin infections but can cause pneumonia, heart valve infections, and bone infections
Staphylococcus aureus
may be resistant to treatment with some antibiotics
Staphylococcus aureus
- Incomplete hemolysis
- Partial lysis of red blood cells
- Creates a halo of greenish discoloration around colonies on the blood agar
α-hemolytic
community acquired pneumonia (CAP) most commonly cause of pneumonia
Streptococcus pneumoniae
Methicillin-resistant Staphylococcus aureus (MRSA) (type of penicillin)
Staphylococcus aureus
encapsulated diplococci
Streptococcus pneumoniae
Gram-positive, nonmotile, non spore forming, catalase-negative cocci that occur in pairs or chains
COCCI – STREPTOCOCCI
