Protein S Antigen, Total and Free

Marker

1 mL frozen plasma collected in a 3.2% sodium citrate (light blue-top) tube

Blood Disorders

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Starting at

$259

Walk-In Lab

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Protein S Antigen Blood Test

The Protein S Antigen test measures the amount of protein S in the blood to determine if excessive blood clots are due to a hereditary or acquired deficiency.

Updated 7/22/2025

$259

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