Fibrin(ogen) degradation (split) products (FDP) (FSP); quantitative
CPT4 code
Name of the Procedure:
Fibrin(ogen) Degradation (Split) Products (FDP) (FSP); Quantitative
Summary
This blood test checks the levels of fibrin degradation products (FDPs) or fibrin split products (FSPs), which are substances that remain after the body breaks down blood clots. It helps diagnose conditions involving excessive clotting or bleeding.
Purpose
This test is used to diagnose various medical conditions such as disseminated intravascular coagulation (DIC), deep vein thrombosis (DVT), and several other clotting disorders. Ensuring appropriate levels of FDPs/FSPs can help pinpoint and monitor clotting abnormalities, thereby preventing potential complications.
Indications
- Unexplained or excessive bleeding
- Symptoms of clotting disorders (e.g., swelling, pain in limbs)
- Monitoring of certain cancers or severe infections
- Investigating underlying causes of stroke or heart attack
- Patients with suspected DIC or other systemic clotting disorders
Preparation
- Fasting for several hours may be required
- Inform the healthcare provider about any medications being taken, particularly blood thinners
- No special diagnostic tests are required beforehand beyond basic screening and medical history review
Procedure Description
- The patient sits or lies comfortably while a tourniquet is applied to the upper arm to fill veins with blood.
- A healthcare provider cleans the puncture site with antiseptic.
- A needle is inserted into a vein, usually in the arm, to collect a blood sample.
- The blood sample is then sent to a laboratory where it is analyzed for levels of fibrin degradation products.
- The tourniquet is then removed, and pressure is applied to the puncture site to stop any bleeding.
Tools and Equipment:
- Tourniquet
- Antiseptic wipes
- Sterile needle and vacuum tube
- Blood collection tubes
The test does not typically require anesthesia or sedation.
Duration
The blood collection process usually takes about 10-15 minutes.
Setting
This procedure is performed in a lab, hospital, or outpatient clinic setting.
Personnel
- Phlebotomist or nurse for blood collection
- Laboratory technician or pathologist for analysis
Risks and Complications
Common:
- Mild pain or bruising at the puncture site
Rare:
- Infection
- Excessive bleeding
- Fainting or dizziness
Benefits
- Accurate diagnosis of clotting disorders
- Potential to identify life-threatening conditions early
- Helps in monitoring effectiveness of treatment for clotting disorders
Recovery
- Minimal recovery time
- Patients can usually resume normal activities immediately
- Follow-up instructions provided if necessary, based on results
Alternatives
- D-dimer test
- Prothrombin time (PT)
- Activated partial thromboplastin time (aPTT)
Pros and Cons:
- D-dimer is more specific for clot detection but less useful for broader coagulation issues.
- PT and aPTT comprehensively assess coagulation but don't specifically measure fibrin degradation.
Patient Experience
Patients might experience slight discomfort during the blood draw but it is generally quick. Post-procedure, any soreness typically resolves within a day, and any pain can be managed with over-the-counter analgesics if necessary.