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HelpProtein S Activity
Collection Requirements
Source: blood
Container: Sodium citrate light blue
Volume: 2.7 mL in vacutainer filled to the
line
Turn Around Time
STAT: 3 hours
- Only available as STAT 7:00 a.m. – 1:00 p.m. Monday – Friday
- STAT at other times requires Sendout
Routine: 1-6 days
Batched testing completed on Monday and Thursday
Specimens must be received in Hematology by 9:00 a.m. to be
included in the batch
Availability
STAT
Routine
Lab Processing Instructions
Specimen: plasma
Double spin and separate
Freeze if testing will not be completed within 1 hour of
processing
Offsites:
- STAT: Send plasma at room temperature with a STAT courier
- Routine: Send plasma on dry ice
Performing Laboratory
Adele Hall
Adele Hall Lab Section
Hematology
Instrumentation/Methodology
Stago STAR
Reference Ranges
| Age | Reference Range (%) |
|---|---|
| 0-1 day | 28 - 47 |
| 1-3 days | 33 - 67 |
| 3 days-6 months | 29 - 162 |
| > 6 months | 60-130 |
CPT
85306
and 85306 85305 (if appropriate)