FIBRIN DEGRADATION PRODUCTS (FDP)

Fibrin Degradation Products (FDP) Test is a specialized blood test used to measure the amount of fibrin and fibrinogen breakdown products present in the bloodstream. These substances are released when blood clots are formed and subsequently broken down by the body's natural fibrinolytic system.

The coagulation and fibrinolytic systems work together to maintain normal blood flow. When a blood clot forms, fibrin helps stabilize the clot. Once healing occurs, the clot is gradually dissolved, producing fibrin degradation products. Elevated FDP levels may indicate excessive clot formation, increased clot breakdown, or abnormalities in the body's coagulation pathways.

The FDP test is commonly used in the evaluation of Disseminated Intravascular Coagulation (DIC), thromboembolic disorders, severe infections, trauma, liver disease, and other conditions associated with abnormal clotting and fibrinolysis.

Benefits of the Test

• Assesses fibrin and fibrinogen breakdown
• Helps diagnose coagulation disorders
• Supports evaluation of Disseminated Intravascular Coagulation (DIC)
• Assists in monitoring abnormal clotting activity
• Helps investigate thrombotic conditions
• Provides important information about fibrinolytic function

Why Doctors Recommend This Test

Doctors may recommend the FDP Test for:

• Suspected Disseminated Intravascular Coagulation (DIC)
• Deep Vein Thrombosis (DVT)
• Pulmonary Embolism (PE)
• Severe infections and sepsis
• Major trauma or burns
• Liver disease evaluation
• Post-surgical coagulation monitoring
• Unexplained bleeding disorders
• Pregnancy-related coagulation complications

The test helps determine whether excessive clot formation and clot breakdown are occurring within the body.

Preparation Before Test

The test requires a blood sample.

• Fasting is generally not required
• Inform your doctor about anticoagulant medications
• Follow any laboratory-specific instructions
• Provide relevant medical history regarding clotting disorders

The procedure involves routine venous blood collection.

Normal Reporting Time

Results are usually available within 24 hours, although urgent testing may be reported sooner in critical care settings.

Who Should Take This Test?

• Patients with suspected clotting disorders
• Individuals with unexplained bleeding
• Patients with suspected DIC
• Individuals with thrombotic conditions
• Critically ill patients
• Patients undergoing coagulation assessment

The FDP Test is an important investigation in hematology and critical care medicine for assessing clot formation and breakdown.

Clinical Significance

Elevated FDP levels may be seen in:

• Disseminated Intravascular Coagulation (DIC)
• Deep Vein Thrombosis (DVT)
• Pulmonary Embolism (PE)
• Severe infections and sepsis
• Trauma and major surgery
• Liver disease
• Malignancies
• Obstetric complications
• Excessive fibrinolysis

FDP results are often interpreted together with other coagulation tests such as:

• D-Dimer
• Prothrombin Time (PT)
• Activated Partial Thromboplastin Time (APTT)
• Fibrinogen Levels
• Platelet Count

This combined assessment helps clinicians evaluate coagulation status more accurately.