A mother brings her 3-year-old daughter to the emergency department because she is having trouble urinating. The child is not feverish. She has otherwise been healthy except for a bout of diarrhea about 10 days ago. Laboratory test results are as follows:
TEST RESULT
RBC 4.30 x 1012/L (moderate schistocytes present on peripheral blood smear)
WBC 5.00 x 109/L
PLT 28 x 109/L
HGB 13.0 g/dL
HCT 39
MCV 89 fl
MCH 28 pg
MCHC 33
BUN 85 mg/dL (RR: 8 - 24 mg/dL)
CREAT 3.3 mg/dL (RR: 0.2 - 1.3 mg/dL)
Based on the history and the laboratory results, what is the most likely diagnosis?
a. DIC
b. Bartonella sp. infection
c. HUS
d. Previous Clostridium sp. infection
Question 2
A child presents to the hospital emergency department with clinical findings of bloody diarrhea and fever. Laboratory findings reveal an elevated neutrophil count, increased C-reactive protein, thrombocytopenia, and a decreased haptoglobin.
With what diagnosis are these findings associated ?
a. TTP
b. HUS
c. DIC
d. HELLP syndrome
A little girl talking to her mother, who looks amused.
The medical assistant handles an emergency.
Infant: 4 weeks to 1 year.
U.S. Life Expectancy by Year of Birth
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