Strep Packet Flashcards
How does Strep show up?
Spreading suppurative skin infections and post strep hypersensitivity disease
What types of post strep hypersensitivity diseases show up?
Rheumatic fever and immune complex glomerulonephritis
What makes up Group A strep?
GABHS, beta hemolytic, S. pyogenes , pharyngitis, and post strep disease
What makes up group B strep?
Perinatal sepsis and UTIs
What makes up Strep viridians?
Grouped as alpha hemolytic and major cause of bacterial endocarditis
What is a major cause of dental carries
Strep mutans
Which virulence factor prevents phagocytosis of strep?
Cell wall polysaccharides/capsules
Which virulence factor allows for the ability to spread through tissues?
Enzymes streptokinase and streptolysin O
What causes the skin rashes in Strep?
Erythrogenic toxins
What does Group A strep infection look like?
Acute pharyngitis/upper respiratory infection with redness, edema, and pain and accesses by tonsils
What can Group A strep turn into if not treated?
Scarlet fever
How long after strep infection until post strep glomerulonephritis
1-2 weeks
When does rheumatic fever present after strep infection?
Weeks to months
What causes the problems in rheumatic fever?
Autoimmune reaction that cross reacts with M antigens
Is bacteria present in rheumatic fever?
No
What titers can be used to measure severity of rheumatic fever?
Streptolysin O
Way to tell difference between step and staph skin infections?
Strep more spread out than staph
Is strep impetigo contagious?
Yes
Where is necrotizing fasciitis?
Subcutaneous infection overtaken by anaerobes
What strain of strep is subacute bacterial endocarditis associated with?
Viridans
In which group would puerperal sepsis be classified?
Group B
What test do you do for Strep throat?
Rapid strep test
What does the rapid strep test look for?
Group A streptococcal carbohydrate antigen
What test is used to diagnose rheumatic fever?
Anti-streptolysib O antibody titers
Where is rash in scarlet fever?
Trunk
Biggest clue for scarlet fever?
Strawberry tongue
Which strep groups evoke erysipelas?
A and C
What is Fournier’s gangrene?
Scrotal/perineal form of necrotizing fasciitis
Which heart valves are damaged by chronic rheumatic heart disease
Mitral and aortic
Impetigo can lead to what?
Post-Strep glomerulonephritis
What is Paronychia?
Staph infection that causes abscesses of the palmar surfaces of finger tips
