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Test Code LAB491 Protein S, Activity

Performing Lab

Arnot Ogden Medical Center

Ordering Recommendations

Investigation of patients with a history of thrombosis.

Collect

Citrated Plasma

Collection Device

Citrate Blue Top Tube

Specimen Volume

FULL BLUE TOP TUBE

Stability (from collection to initiation)

Room Temp

 4 hours
Frozen* 2 weeks

*Must be spun and separated with 4 hours

Storage/Transport Temperature

Room Temp or Spun and Frozen*

*Must be spun and separated with 4 hours

Minimum Requirements

FULL BLUE TOP TUBE. Contact laboratory for pediatric draws.

Methodology

Turbidimetic Immunoassay

Start Date

9/13/2017

Last Review Date

TBD

Specimen Handling

Specimen should be spun and frozen within 4 hours of collection.

Remarks

TURN AROUND TIME

Batched testing performed on Thursdays only.

Specimen Preparation

*Must be spun and separated with 4 hours. Contact laboratory for pediatric draws.

Pediatric Collection

Contact laboratory for pediatric draws.