Protein S, Free Antigen

Synonyms

• LAB492
• PROTEIN S ANTIGEN, FREE
• PS AG

Cerner Name

Protein S Antigen Free

Clinical Info

Specimen Sources

Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

Blood

Specimen Volume

Invert several times to mix blood. Spin down and place 1 mL of citrated plasma into 2 plastic vials each containing 0.5 mL of citrated plasma.

Container

Blue Top Tube

Collection Instructions

Container/Tube:  Light blue-top (3.2% sodium citrate) tube(s). Fill tube(s) completely.
Specimen:  Invert several times to mix blood. Spin down and place 1 mL of citrated plasma into 2 plastic vials each containing 0.5 mL of citrated plasma.
Transport Temperature: Frozen
 
Note:  1. If no other tube is drawn, draw a discard tube.
2. If there is a delay in transport, spin down, remove plasma, spin plasma again, and place 1 mL of platelet-poor plasma into 2 plastics vials each containing 0.5 mL of platelet-poor plasma. Send specimen frozen. Double-centrifuged specimens are critical for accurate results as platelet contamination may cause spurious results.

Transport Instructions

Frozen

Specimen Stability

Methodology

Immunoassay-ACL-Top/IL

Days Performed

Two - 3 times per week

Performing Laboratory

Northwell Health Laboratories

CPT

85306

PDM

5601190

Only Orderable at Locations:

Orderable Everywhere

Results

Result Interpretation

Forms