Children's Mercy Kansas City
Name
Factor VIII Assay

Synonyms
Factor 8

CMH Lab Section
Hematology

Specimen Requirements
2.7 mL in a sodium citrate blue top tube

Availability
STAT or Routine

Turn Around Time
Routine: batch testing completed on Mondays and Thursdays
Specimens must be received in lab by 9AM to be included in the day's batch
STAT: 2-3 hours
in house STAT is not available 1PM-7AM
STAT option between 1PM-7PM as a sendout

Processing Instructions
Send specimen to Hematology ASAP

Methodology
Stago STAR mechanical clot detection

Ranges
AgeNormal Value
0 days50 – 178%
1 day50 – 150%


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