Acute Diarrhea & vomitin

Question 1

Vomiting w/in hours

B. cereus

Stauph aureus (coagulase +)

Morphology

Source

Pathophys

Answer 1

B- gram + rod, fac anaerobe, rice, heat resistant spore/toxin

S- gram + cocci, ham/mayo/potato salad, preformed toxin

Question 2

Campylobacter

Giardia lamblia

Hep A

Norovirus

Salmonella

Staph Aureus

Incubation period, common sx

Answer 2

2-5 days

1-2 wks= watery/steatorrhea, bloating flatulence

2-6wk- shellfish- fatigue/malaise/wl/ jaundice

1-2 days, more so watery diarrhea

1-3 days, N/V/ab cramps, sx last 1-2 days

Question 3

Listeria monocytogenes

Shigella

Toxoplasma gondii

Vibrio vulnificus

Transmission and sx

Answer 3

Cheese- flu like, fetal death, premature delivery

Produce, sexual, daycare- F/ab pain, diarrhea

Cat litter, undercooked meats, flu like- congenital toxoplasmosis

Raw/undercooked shellfish- sepsis

Question 4

Empiric therapy for bloody diarrhea in children

Salmonella typhi

2nd wk
3rd wk of illness

Answer 4

no benefit, can lead to hemolytic uremic syndrome

2nd- ab pain, rose spots

3rd- HSM, intestinal bleeding

Question 5

1 cause of acute gastroenteritis

C diff toxin results in

Entamoeba incubation period

Answer 5

accumulation of fibrin, mucin, dead host cells

Norovirus

several wks