Bacterial Diseases Flashcards
Impetigo
Honey color facial crust
Pyoderma (pus)
S aureus, S pyo
Bullous impetigo
Exfoliative toxin A
S aureus
Wound infection cuts, burns etc
S aureus, S pyo
Bacteremia
S pneumoniae (infants)
SIRS criteria
temp outside 36-38C pulse >90 RR >20 WBC outside 4k-12k WBC >10 immature
Sepsis
SIRS + proven/suspected infection
Severe sepsis
Sepsis + organ dysfunction
Septic shock
Refractory hypotension, lactic acidosis
Metastatic abcesses, infective endocarditis, infective arthritis most caused by…
S aureus
Food poisoning <24hr duration, headache, nausea, VOMITING, diarrhea
S aureus SEA/ingested enterotoxin
Scalded skin syndrome
Exfoliatin toxins ETA and ETB, break desmosomes. S aureus, Skin sloughs in sheets.
Toxic shock
superantigens, TSST-1 or Enterotoxins A,B,C
Pharyngitis
Mostly virus, but some GAS (strep throat)
Erysipelas
Spreading, red painful face/extremity lesion, GAS
Cellulitis
Spreading skin inflammation…GAS
Necrotizing Fasciitis
Pyrogenic endotoxins
S aureus, GAS, Clostridia, enteric bacteria
Scarlet Fever
Pharyngitis w/ fever
Rash “strawberry tongue” “sandpaper trunk”
GAS toxin
Toxic shock like syndrome
GAS toxin
Acute rheumatic fever
Fever, painful swollen joints
Immunological sequelae
3 wk after Strep Throat
some GAS subtypes
Acute Glomerulonephritis
Edema, hypertension, decreased urination, hematuria
Immunological sequelae
after Strep throat or pyoderma
Puerperal infection / postpartum endometritis / childbed fever
GAS, contamination of uterus during childbirth
Prevented by handwashing
Pneumonia
S pneumoniae, H influenzae, could be S aureus, Klebsiella, Pseudomonas
Meningitis (adult/kid)
S pneumoniae, S meningitidis
NMEC, GBS
Hemolytic uremic syndrome
EHEC shiga toxin blocks protein synth
low RBCs, low platelets, acute renal failure
UTI / acute cystitis
UPEC, Klebsiella, Proteus, Enterococcus, Enterobacter.
Pyelonephritis aka urosepsis
UTI that ascended
OR S aureus bacteremia that descended
Pseudomembranous colitis
C diff
Bloody diarrhea
EIEC, EHEC, Campylobacter jejuni, Shigella, Salmonella