PROTEIN C ANTIGEN

The Protein C Antigen test measures the blood concentration of protein C, a liver-produced natural anticoagulant that helps regulate clot formation. Using a venous blood sample and laboratory immunoassays, the test quantifies antigen levels to identify deficiencies or reduced production that may increase thrombotic risk. Identifying low protein C antigen is important for diagnosing inherited or acquired thrombophilia and guiding clinical decisions about prevention and treatment of blood clots.

Our at-home collection service in Dubai provides trained phlebotomists who collect the required sample at your residence and forward it to an accredited laboratory for reliable reporting. The test is recommended for people with unexplained or recurrent venous thrombosis, a family history of clotting disorders, recurrent pregnancy loss, or when physicians need baseline data before initiating or modifying anticoagulation. Inform your clinician about recent anticoagulant use, acute thrombosis, liver disease, or pregnancy, as these factors can affect results and interpretation.

• Protein C Antigen (quantitative)
• Protein C concentration (µg/mL or % of normal)
• Laboratory reference range (lab-specific)

• After unexplained venous thrombosis (DVT or pulmonary embolism)
• Recurrent pregnancy loss or placental complications
• Positive family history of inherited thrombophilia
• Prior to starting, stopping, or changing long‑term anticoagulation
• Follow-up of abnormal screening tests for anticoagulant proteins

• Detects inherited or acquired Protein C deficiency
• Assesses individual risk for venous thromboembolism
• Guides physician decisions on anticoagulation and pregnancy management
• Convenient at‑home sample collection in Dubai with accredited lab analysis
• Clear, physician-ready laboratory report for timely follow-up

• Venous blood sample collected by a trained phlebotomist (citrate plasma)
• Inform provider about current anticoagulant therapy and recent clotting events
• Avoid testing during an acute thrombotic episode or early after warfarin initiation unless directed
• Provide relevant medical history (pregnancy, liver disease, family history of thrombosis)