Bacterial Diseases

Question 1

Impetigo

Answer 1

Honey color facial crust
Pyoderma (pus)
S aureus, S pyo

Question 2

Bullous impetigo

Answer 2

Exfoliative toxin A

S aureus

Question 3

Wound infection cuts, burns etc

Answer 3

S aureus, S pyo

Question 4

Bacteremia

Answer 4

S pneumoniae (infants)

Question 5

SIRS criteria

Answer 5

temp outside 36-38C
pulse >90
RR >20
WBC outside 4k-12k
WBC >10 immature

Question 6

Sepsis

Answer 6

SIRS + proven/suspected infection

Question 7

Severe sepsis

Answer 7

Sepsis + organ dysfunction

Question 8

Septic shock

Answer 8

Refractory hypotension, lactic acidosis

Question 9

Metastatic abcesses, infective endocarditis, infective arthritis most caused by…

Answer 9

S aureus

Question 10

Food poisoning <24hr duration, headache, nausea, VOMITING, diarrhea

Answer 10

S aureus SEA/ingested enterotoxin

Question 11

Scalded skin syndrome

Answer 11

Exfoliatin toxins ETA and ETB, break desmosomes. S aureus, Skin sloughs in sheets.

Question 12

Toxic shock

Answer 12

superantigens, TSST-1 or Enterotoxins A,B,C

Question 13

Pharyngitis

Answer 13

Mostly virus, but some GAS (strep throat)

Question 14

Erysipelas

Answer 14

Spreading, red painful face/extremity lesion, GAS

Question 15

Cellulitis

Answer 15

Spreading skin inflammation…GAS

Question 16

Necrotizing Fasciitis

Answer 16

Pyrogenic endotoxins

S aureus, GAS, Clostridia, enteric bacteria

Question 17

Scarlet Fever

Answer 17

Pharyngitis w/ fever
Rash “strawberry tongue” “sandpaper trunk”
GAS toxin

Question 18

Toxic shock like syndrome

Answer 18

GAS toxin

Question 19

Acute rheumatic fever

Answer 19

Fever, painful swollen joints
Immunological sequelae
3 wk after Strep Throat
some GAS subtypes

Question 20

Acute Glomerulonephritis

Answer 20

Edema, hypertension, decreased urination, hematuria
Immunological sequelae
after Strep throat or pyoderma

Question 21

Puerperal infection / postpartum endometritis / childbed fever

Answer 21

GAS, contamination of uterus during childbirth

Prevented by handwashing

Question 22

Pneumonia

Answer 22

S pneumoniae, H influenzae, could be S aureus, Klebsiella, Pseudomonas

Question 23

Meningitis (adult/kid)

Answer 23

S pneumoniae, S meningitidis

NMEC, GBS

Question 24

Hemolytic uremic syndrome

Answer 24

EHEC shiga toxin blocks protein synth

low RBCs, low platelets, acute renal failure

Question 25

UTI / acute cystitis

Answer 25

UPEC, Klebsiella, Proteus, Enterococcus, Enterobacter.

Question 26

Pyelonephritis aka urosepsis

Answer 26

UTI that ascended

OR S aureus bacteremia that descended

Question 27

Pseudomembranous colitis

Answer 27

C diff

Question 28

Bloody diarrhea

Answer 28

EIEC, EHEC, Campylobacter jejuni, Shigella, Salmonella