Protein S Activity
Marker1 mL frozen plasma collected in 3.2% sodium citrate (light blue-top) tube
Blood Disorders
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Starting at
$185
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Lowest PriceOnlineProtein S Functional Blood Test
The Protein S Functional test measures protein activity to evaluate their ability to regulate blood clotting and screen for a potential excessive clotting disorder.
Updated 7/23/2025
$185
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