Cardio IQ® Fibrinogen Antigen, Nephelometry - This test measures the level of fibrinogen in your blood, which can help identify bleeding disorders, liver disease, or conditions like disseminated intravascular coagulation (DIC). Fibrinogen is a protein that helps blood clot, so knowing its level can be crucial. High levels of fibrinogen can indicate inflammation or an increased risk of atherosclerosis, a condition that can lead to heart disease.