Protein C is a topic covered in the Davis's Lab & Diagnostic Tests.

To view the entire topic, please or purchase a subscription.

Davis’s Laboratory and Diagnostic Tests Online, powered by Unbound Medicine, provides nurses and students access to 400+ test monographs containing reference ranges, indications, patient preparation and result interpretation. Explore these free sample topics:


-- The first section of this topic is shown below --


Protein C antigen, protein C functional.

Common Use:
To assess coagulation function and assist in diagnosis of disorders such as thrombosis and protein C deficiency.

Plasma collected in a completely filled blue-top (3.2% sodium citrate) tube. If the patient’s hematocrit exceeds 55%, the volume of citrate in the collection tube must be adjusted.

Normal Findings:
(Method: Clot detection) 70% to 140% activity. Values are significantly reduced in children because of liver immaturity. Levels rise to approximately 50% of adult levels by age 5 yr and reach adult levels by age 16 yr.

-- To view the remaining sections of this topic, please or purchase a subscription --