Ulta Lab Tests

Protein C Antigen Test

The Protein C Antigen Test measures the quantity of Protein C, a vitamin K–dependent anticoagulant that regulates clot formation. Low antigen levels may indicate inherited or acquired Protein C deficiency, which increases the risk of deep vein thrombosis or other clotting disorders. This test helps differentiate between quantitative and functional deficiencies when evaluating abnormal coagulation.

Blood
Blood Draw
There are no preparation instructions.

The following is a list of what is included in the item above. Click the test(s) below to view what biomarkers are measured along with an explanation of what the biomarker is measuring.

Protein C, Antigen

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The Protein C Antigen Test test contains 1 test with 1 biomarker .

Aids in diagnosis of congenital deficiencies characterized by recurrent venous thrombosis. Acquired deficiencies associated with Protein C include: oral anticoagulant therapy, liver disease, vitamin K deficiency, malignancy, consumptive DIC, surgery, trauma, antibodies to Protein C and hepatic immaturity of the newborn.

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