Biomarker Lens

Biomarkers · Chemical

Protein C Activity

What it measures

Tests in the graph that measure it
9

A plain-language description with its source has not been added for this biomarker yet. What the laboratories say about the tests that measure it is below.

Tests that measure Protein C Activity

Venous Thrombosis Hypercoagulability Panel with Reflex and Consultation

Laboratory
Quest Diagnostics
Test code
19656
Specimen
Serum
Fasting
Not stated as required

What the laboratory says this test is for

This panel evaluates for the most common hereditary and acquired venous thrombophilia risk factors.

Quest Diagnostics test directory, test code 19656

Recurrent Miscarriage EvaluationCoagulation Panel with Consultation

Laboratory
Quest Diagnostics
Test code
19671
Specimen
Serum
Fasting
Not stated as required

Quest Diagnostics test directory, test code 19671

Thrombophilia Screen II Inherited

Laboratory
Quest Diagnostics
Test code
11327
Specimen
Plasma
Fasting
Not stated as required

What the laboratory says this test is for

Factor V Leiden (R506Q) is the most common genetic determinant for hereditary venous thrombosis. Another DNA variant, the HR2 allele, has been associated with a 3-4 fold increased risk to venous thrombosis when it occurs in the presence of the Factor V Leiden mutation.

Quest Diagnostics test directory, test code 11327

Thrombosis Panel

Laboratory
Quest Diagnostics
Test code
11051
Specimen
Plasma
Fasting
Not stated as required

What the laboratory says this test is for

This panel is useful to determine the etiology of various hypercoagulability states.

Quest Diagnostics test directory, test code 11051

Protein C Activity with Reflex to Protein C Antigen

Laboratory
Quest Diagnostics
Test code
8754
Specimen
Plasma
Fasting
Not stated as required

What the laboratory says this test is for

Aids in characterization of protein C deficiency. Type I deficiency is characterized by reduction in activity (functional) and antigen levels. With type II deficiency (dysfunctional protein), antigen levels may be normal and activity levels are decreased. Acquired deficiencies may occur with vitamin K antagonists/deficiency, liver disease, malignancy, consumptive DIC, surgery, trauma, and hepatic immaturity of the newborn. Drug therapy with L-asparaginase or fluorouracil can also reduce Protein C antigen levels.Anticoagulant interference: Expected impact by therapeutic levels (potential interference depends upon drug concentration): Vitamin K Antagonists (eg coumadin): decrease; Heparin (UFH or LMWH): no effect to falsely increased activity levels at higher levels; Dabigatran or Argatroban (Direct Thrombin Inhibitors): may falsely increase activity; Rivaroxaban, Apixaban, Edoxaban (Factor Xa Inhibitors): may falsely increase activity.

Quest Diagnostics test directory, test code 8754

Protein C Activity

Laboratory
Quest Diagnostics
Test code
1777
Specimen
Plasma
Fasting
Not stated as required

What the laboratory says this test is for

Protein C (PC) deficiency may be congenital or acquired and is associated with venous thrombosis. Acquired PC deficiency may occur with vitamin K antagonists/deficiency, liver disease, malignancy, consumptive DIC, surgery, trauma, and hepatic immaturity of the newborn.Anticoagulant interference: Expected impact by therapeutic levels (potential interference depends upon drug concentration): Vitamin K antagonists (eg warfarin): decrease; Heparin (UFH or LMWH): no effect to falsely increased activity levels at higher levels; Dabigatran or Argatroban (Thrombin Inhibitors): may falsely increase activity; Rivaroxaban, Apixaban, Edoxaban (Factor Xa Inhibitors): may falsely increase activity.

Quest Diagnostics test directory, test code 1777

Recurrent MiscarriageCoagulation Panel with Reflex without Consultation

Laboratory
Quest Diagnostics
Test code
11469
Specimen
Plasma
Fasting
Not stated as required

What the laboratory says this test is for

This profile examines the most common hereditary and acquired thrombophilia risk factors associated with recurrent miscarriage or stillbirth.

Quest Diagnostics test directory, test code 11469

Venous Thrombosis Hypercoagulability Panel with Reflex

Laboratory
Quest Diagnostics
Test code
11475
Specimen
Plasma
Fasting
Not stated as required

What the laboratory says this test is for

This panel evaluates for the most common hereditary and acquired venous thrombophilia risk factors.

Quest Diagnostics test directory, test code 11475

Protein C and Protein S Functional

Laboratory
Quest Diagnostics
Test code
39457
Specimen
Plasma
Fasting
Not stated as required

What the laboratory says this test is for

Protein C (PC) and Protein S (PS) deficiency may be congenital or acquired and is associated with venous thrombosis. Acquired PC or PS deficiency may occur with vitamin K antagonists/deficiency, liver disease, malignancy, consumptive DIC, surgery, trauma, and hepatic immaturity of the newborn. In addition, PS deficiency is physiologic in pregnancy. ⁠⁠⁠⁠⁠⁠⁠Anticoagulant interference: Expected impact by therapeutic levels (potential interference depends upon drug concentration): Warfarin: decrease; Heparin (UFH or LMWH): no effect to falsely increased activity levels at higher levels; Dabigatran or Argatroban (Direct Thrombin Inhibitors): may falsely increase activity; Rivaroxaban, Apixaban, Edoxaban (Factor Xa Inhibitors): may falsely increase activity.

Quest Diagnostics test directory, test code 39457

About this page

Everything above is drawn from the named sources and shown as they published it. Reference ranges belong to the laboratory that issued them and the population it named; they are not a universal normal. This page describes the biomarker in general and does not interpret anyone's result. For your own numbers, talk to a clinician, or use Aumnivida, which reads the same graph next to your records.

Found an error? Write to hello@biomarkerlens.com with the page link and the source that contradicts it.