Children's Mercy Kansas City
Name
Protein S, Functional

CMH Lab Section
Hematology

Specimen Requirements
2.7 mL in a sodium citrate light blue tube

Availability
Routine

Turn Around Time
Batch testing completed on Mondays and Thursdays
Specimens must be received in lab by 9AM to be included in the day's batch

Processing Instructions
Send specimen to Hematology ASAP

Methodology
STAR - mechanical clot detection

Ranges

Age

Normal Range (%)

0-1 days

28-47

1-3 days

33-67

3 days – 6 months

29-162

>6 months

60-120



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