Fibrinogen Degradation Products (FDP) Blood Test
Short Name: FDP Blood Test
Also known as: Fibrin Degradation Products Test, Fibrin Split Products Test, FSP Test, FDP Assay
Fibrinogen Degradation Products (FDP) Blood Test test available at DNA Labs India for ₹1,147. Uses Latex Agglutination on Whole Blood samples. Results in Results are typically available within 24 to 48 hours and can be accessed via the online portal, email, or WhatsApp.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Pasupathy Arumugam
Consultant Pathologist · Reg: 21521
Last reviewed: September 7, 2026
Overview
The FDP blood test is primarily used to evaluate the fibrinolytic activity in the body and to help diagnose conditions associated with abnormal blood clotting or excessive clot breakdown. It aids in the detection of disseminated intravascular coagulation (DIC), monitoring of thrombolytic therapy, and assessment of clotting disorders. The test is also useful in differentiating between primary fibrinolysis and DIC when interpreted alongside other coagulation parameters.
- Test Code
- 554
- CPT Code
- 85362
- ICD Code
- D65
- Price
- ₹1,147
- Sample Type
- Whole Blood
- Result Time
- Results are typically available within 24 to 48 hours and can be accessed via the online portal, email, or WhatsApp.
- Fasting Required
- Yes (8 hours)
- Method
- Latex Agglutination
Sample Collection
Overnight fasting (8–12 hours) is preferred. Inform your physician about any anticoagulant or thrombolytic medications you are taking. A duly filled Coagulation Requisition Form (Form 15) is mandatory.
Method: Venipuncture
Laboratory Analysis
A healthcare professional will draw approximately 3 mL of blood from a vein in your arm into a Blue Top (Sodium Citrate) tube. The tube must be mixed thoroughly by gentle inversion immediately after collection.
Report Delivery
Apply pressure to the puncture site for a few minutes. Minor bruising is normal. The sample must be transported to the laboratory within 4 hours. If transport within 4 hours is not possible, prepare Platelet Poor Plasma (PPP) within 1 hour of collection and freeze immediately.
Timeline: Results are typically available within 24 to 48 hours and can be accessed via the online portal, email, or WhatsApp.
Patient Instructions
About This Test
Who Should Get This Test
The FDP blood test is primarily used to evaluate the fibrinolytic activity in the body and to help diagnose conditions associated with abnormal blood clotting or excessive clot breakdown. It aids in the detection of disseminated intravascular coagulation (DIC), monitoring of thrombolytic therapy, and assessment of clotting disorders. The test is also useful in differentiating between primary fibrinolysis and DIC when interpreted alongside other coagulation parameters.
How to Prepare
- Collect 3 mL whole blood in a Blue Top (Sodium Citrate) tube
- Mix thoroughly by gentle inversion immediately after collection
- Transport to the lab within 4 hours of collection
- If transport within 4 hours is not possible, prepare PPP within 1 hour: centrifuge at 3600 rpm for 15 min, transfer supernatant to a clean plastic tube, centrifuge again at 3600 rpm for 15 min, transfer final supernatant to a labelled screw-capped vial
- FREEZE IMMEDIATELY after PPP preparation. Ship frozen. DO NOT THAW
- Duly filled Coagulation Requisition Form (Form 15) must accompany the sample
Doctor's Notes
Reviewed by Dr Pasupathy Arumugam — MBBS, MD (Pathology) · Reg. No. 21521
"The FDP test is a valuable screening tool for detecting the breakdown of fibrin clots in the body. Elevated FDP levels may indicate disseminated intravascular coagulation (DIC), deep vein thrombosis, pulmonary embolism, or other clotting abnormalities. It is important to interpret FDP results alongside D-dimer levels, PT, aPTT, and clinical findings for an accurate diagnosis. Early detection through this test can be critical in preventing life-threatening complications. I recommend this test for patients presenting with unexplained bleeding, recurrent clots, or symptoms suggestive of DIC."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Sample received in an incorrect tube (not Sodium Citrate/Blue Top)
- Sample not properly mixed by inversion
- Hemolyzed, clotted, or underfilled sample
- Sample received more than 4 hours after collection without PPP preparation
- Missing Coagulation Requisition Form (Form 15)
- Thawed frozen PPP samples
Understanding Your Results
Normal range. No significant increase in fibrinolytic activity detected.
Suggests normal clot formation and breakdown processes.
Mildly to moderately elevated.
May indicate early DIC, venous thromboembolism, liver disease, recent surgery, or trauma. Correlation with D-dimer and other coagulation parameters is recommended.
Significantly elevated.
Strongly suggestive of active DIC, severe thrombotic conditions, major trauma, or advanced liver disease. Immediate clinical evaluation and additional testing are warranted.
Consult your doctor if your FDP levels are elevated, especially if you are experiencing unexplained bleeding, bruising, swelling in limbs, shortness of breath, chest pain, or abdominal pain. Elevated FDP in conjunction with abnormal PT, aPTT, or D-dimer results may require urgent medical attention.
Limitations
- ⚠FDP test is non-specific and cannot distinguish between fibrinogen and fibrin degradation products
- ⚠Must be interpreted alongside D-dimer, PT, aPTT, and fibrinogen levels for clinical significance
- ⚠Results may vary between laboratories due to differences in assay methodology
- ⚠Not suitable as a standalone diagnostic test for any specific condition
Risks & Considerations
- ●Minor bruising or pain at the needle insertion site
- ●Slight risk of infection at the puncture site
- ●Rarely, fainting or dizziness during blood draw
- ●No significant long-term risks associated with this test
Interfering Factors
- ●Heparin therapy may cause falsely elevated results
- ●Recent thrombolytic therapy can significantly raise FDP levels
- ●Hemolyzed or improperly collected samples may affect accuracy
- ●Delayed processing beyond the specified stability window can alter results
- ●Rheumatoid factor may interfere with latex agglutination assays
Compare With Similar Tests
| Test | Fibrinogen Degradation Products (FDP) Blood Test | D-dimer Test | Prothrombin Time (PT) Test | Activated Partial Thromboplastin Time (aPTT) Test | Fibrinogen Level Test |
|---|---|---|---|---|---|
| Comparison | Fibrinogen Degradation Products (FDP) Blood Test |
Frequently Asked Questions
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