Ch 2

Question 1

Gastroenteritis symptoms is

Answer 1

2-6 hours after ingesting toxin: nausea, abdominal pain, vomiting, followed by diarrhea

Question 2

Gastroenteritis Pathogenicity Factors is

Answer 2

Enterotoxins A-E preformed in food

Question 3

Infective endocarditis symptoms is

Answer 3

Fever, malaise, leukocytosis, heart murmur (may be absent initially)

Question 4

Infective endocarditis Pathogenicity Factors is

Answer 4

Fibrin-platelet mesh, cytolytic toxins

Question 5

Abscesses and mastitis symptoms is

Answer 5

Subcutaneous tenderness, redness and swelling; hot

Question 6

Abscesses and mastitis Pathogenicity Factors is

Answer 6

Coagulase, cytolysins

Question 7

Toxic shock syndrome symptoms is

Answer 7

Fever, hypotension, scarlatiniform rash that desquamates
(particularly on palms and soles), multiorgan failure

Question 8

Toxic shock syndrome Pathogenicity Factors is

Answer 8

TSST-1

Question 9

Impetigo symptoms is

Answer 9

Erythematous papules to bullae

Question 10

Impetigo Pathogenicity Factors is

Answer 10

Coagulase, exfoliatins

Question 11

Scalded skin syndrome symptoms is

Answer 11

Diffuse epidermal peeling

Question 12

Scalded skin syndrome Pathogenicity Factors is

Answer 12

Coagulase, exfoliatins

Question 13

Pneumonia Symptoms is

Answer 13

Productive pneumonia with rapid onset, high rate of necrosis, and high fatality; nosocomial, ventilator, postinfluenza, IV drug abuse, cystic fibrosis, chronic granulomatous disease, etc.
Salmon-colored sputum

Question 14

Pneumonia Pathogenicity Factors is

Answer 14

Coagulase, cytolysins

Question 15

Surgical infections symptoms is

Answer 15

Fever with cellulitis and/or abscesses

Question 16

Surgical infections Pathogenicity Factors is

Answer 16

Coagulase, exfoliatins,
+ TSSTs

Question 17

Osteomyelitis symptoms is

Answer 17

Bone pain, fever, + tissue swelling, redness; lytic bone lesions on imaging

Question 18

Osteomyelitis Pathogenicity Factors is

Answer 18

Cytolysins, coagulase

Question 19

Septic arthritis symptoms is

Answer 19

Monoarticular joint pain; inflamation

Question 20

Septic arthritis Pathogenicity Factors is

Answer 20

Cytolysins, coagulase

Question 21

وين بتعيش ال S. hominis ؟

Answer 21

around apocrine sweat glands

Question 22

وين بتعيش ال S. capitis ؟

Answer 22

scalp, face, external ear

Question 23

Endocarditis due to

Answer 23

CoNS

Question 24

مين يلي بسبب ال Endocarditis

Answer 24

S. epidermidis, S. lugdunensis

Question 25

من الذي يسبب ال Prosthetic Joint Infections

Answer 25

S. epidermidis common in artificial hip and knee infections

Question 26

ما هي أعراض ال Prosthetic Joint Infections ؟

Answer 26

localized pain and mechanical joint failure

Question 27

الأعراض الغير الشائعة ل Prosthetic Joint Infections ؟

Answer 27

fever, leukocytosis

Question 28

ما علاج ال Prosthetic Joint Infections ؟

Answer 28

joint replacement and prolonged antibiotic therapy

Question 29

من يسبب Urinary Tract Infections ؟

Answer 29

S. saprophyticus

Question 30

Urinary Tract Infections symptoms is

Answer 30

dysuria, pyuria, and bacteriuria

Question 31

من يسبب ال Patients fitted with cerebrospinal fluid shunts (meningitis ؟

Answer 31

S. epidermidis

Question 32

The most common cause of peritoneal dialysis–related

Answer 32

peritonitis

Question 33

تعيش ال S. epidermidis في ؟

Answer 33

skin and mucous membranes

Question 34

تعيش ال S. saprophyticus في ال ؟

Answer 34

skin, intestine, vagina; UTI

Question 35

Penicillin-binding proteins (PBPs) catalyze

Answer 35

peptidoglycan synthesis

Question 36

Teichoic acids is

Answer 36

Phosphate-containing polymers attached to peptidoglycan

Question 37

Lipoteichoic acids is

Answer 37

Bound to lipids in the cytoplasmic membrane

Question 38

Protein A is

Answer 38

Binds Fc region of IgG

Question 39

Capsule & Slime Layer function is

Answer 39

Prevent phagocytosis

Question 40

Protein A function is

Answer 40

Binds IgG Fc region → Inhibits opsonization

Question 41

Complement Inhibitors function is

Answer 41

Complement Inhibitors

Question 42

Cytolytic Toxins

Answer 42

Destroy leukocytes & host cells

Question 43

Exfoliative Toxins (ETA, ETB): Cause

Answer 43

Staphylococcal Scalded Skin Syndrome

Question 44

Enterotoxins (A-E, G-X): Responsible

Answer 44

food poisoning

Question 45

Coagulase: Forms

Answer 45

fibrin clots, shielding bacteria (S. aureus

Question 46

Hyaluronidase: Breaks down

Answer 46

connective tissue → Invasion

Question 47

Fibrinolysin (Staphylokinase) function is

Answer 47

Dissolves clots → Bacterial spread

Question 48

Lipases & Nucleases

Answer 48

Survival in sebaceous areas, degrade host DNA