Protein S, Free Antigen Build info

Synonyms

• PROTEIN S ANTIGEN, FREE
• PS AG
• LAB492

Procedure Name

PROTEIN S ANTIGEN, FREE

Procedure Master Number

LAB492

Procedure ID

7684

Clinical Info

Specimen Sources

Specimen Types

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.

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.

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

Only Orderable at Locations:

Results

Result Interpretation

Males:  67-141%
Females:  61-131%

Forms