Protein C

Three reasons the Protein C Activity test is right for you

• This test measures the activity of Protein C, a key natural anticoagulant in your blood
• It helps identify inherited or acquired deficiencies that can increase the risk of abnormal blood clots
• Results assist your healthcare provider in preventing thrombotic events and guiding treatment strategies

What is the Protein C Activity test?

The Protein C Activity test evaluates the functional activity of Protein C, which helps regulate blood clotting by preventing excessive clot formation. Low or abnormal activity can contribute to an increased risk of deep vein thrombosis, pulmonary embolism, or other clotting disorders.

This test is often recommended for:

• Individuals with a personal or family history of unusual blood clots
• Patients with recurrent thrombosis despite standard anticoagulant therapy
• People with unexplained pregnancy complications or miscarriage
• Screening for inherited clotting disorders before surgery or medical treatment

What are the symptoms of Protein C deficiency?

Symptoms may not always be obvious until a clot occurs. Possible signs include:

• Swelling, pain, or redness in the legs (deep vein thrombosis)
• Sudden shortness of breath or chest pain (possible pulmonary embolism)
• Recurrent miscarriages or pregnancy complications
• Skin lesions or purpura in severe cases
• Unexplained fatigue or general malaise associated with clotting events

How does the Protein C Activity test work?

A blood sample is collected in citrate tubes and must be handled carefully. The sample should be double spun, separated, and frozen within 4-8 hours if there is any delay in transport to the laboratory. It must be sent to the lab the same day and accompanied by a clinical history for accurate interpretation. The laboratory measures the functional activity of Protein C to determine if it is within normal ranges or deficient.

What can I expect at my appointment?

Your appointment involves a standard blood draw performed by a trained healthcare professional. The procedure is quick, safe, and minimally invasive.

Results are typically available within 3-4 days. You will receive a report showing your Protein C activity, with guidance from your healthcare provider regarding any necessary treatment or preventative measures.

Are there any risks with this test?

This is a routine blood test and is considered very safe. Most people experience only mild discomfort at the site of the needle.

Minor bruising or tenderness may occasionally occur. Serious complications are extremely rare. Seek medical advice if you feel unwell after the test.

How do I schedule my appointment?

To book your appointment, click the “Book Your Appointment” button at the top of the page. Select your preferred clinic, date, and time, and ensure the sample is collected and handled according to the instructions provided for accurate results.