Strep

Question 1

Strep characteritics

Answer 1

gram + cocci in chains

catalase negative

Question 2

S, Pyogenes

Answer 2

Group A
Beta hemolytic, bacitracin sensitive

pyogenic- cellulitis, impetigo, erysipelas, pharyngitis

toxogenic- TSS, scarlet fever, nec fasc

Immunologic- rheumatic fever, post strep glomerulonephritis

M protein- major antigen
Strepolysin O

Question 3

Scarlet fever

Answer 3

sandpaper texture
strawberry tongue
acarlett rash

Question 4

Mprotein

Answer 4

helps docking/adherence, stops phagocytosis

Question 5

S. galactiae

Answer 5

group B strep, babies, beta hemolytic, colonizes vagina, screen pregnant women before birth

neonatal pneumonia and sepsis

Question 6

Streptolysin O

Answer 6

lyse RBC’s

Question 7

rheumatic fever

Answer 7

onset 3-6 weeks after infection, autoimmune

Question 8

Post strep glomerulonephritis

Answer 8

onset 2-4 weeks after infection, immune complex

Question 9

Enterococcus

Answer 9

formerly known as group D strep
can become VRE
UTI's
subacute endocarditis
gamma hemolytic

Question 10

Viridians strep

Answer 10

endocarditis and dental caries alph a hemolytic

Question 11

Strep Bovis

Answer 11

group D strep

associated with colon cancer

Question 12

Step Pneumonia

Answer 12

gram + diplococci
capsule
IGA protease
alpha hemolysis
most common cause of community acquired pneumonia
most common cause of bacterial meningitis in adults
otitis media, sinusitis
lobar conslidation, rust colored sputum, rapid onset chills

Question 13

Jones criteria

Answer 13

Joints
Pancarditis
Nodules
erythema marginatum
Sydenham chorea