Children's Mercy Hospitals and Clinics
Name
Protein C, Functional

CMH Lab Section
Hematology

Specimen Requirements
2.7 ml in a Sodium Citrate blue top tube

Availability
Routine

Turn Around Time
Batched: once/wk Thursdays

Special Instructions
If activity is less than 60%, antigenic testing will automatically be performed. Indicate if patient is on coumadin as this will affect the result. All patients < 6 months will not be tested for functional Protein C. They will automatically be sent to St. Lukes for a Protein C Antigen.

Processing Instructions
Send Specimen to Hematology ASAP

Methodology
STAR Mechanical clot detection

Ranges
>6 months= 60-130%
No reference range established for patients <6 months of age.

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