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Quest Diagnostics

Cardio IQ Fibrinogen Antigen, Nephelometry

Quest Diagnostics

Sample type: Plasma

Requires fasting: Yes

Phlebotomy required


Details

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.


  • Fibrinogen Antigen, Nephelometry

Estimated days for results: Results should be available in 2 - 5 business days after the sample is collected

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.

What patients is this test right for?
This test may be recommended if you have symptoms or risk factors for bleeding disorders, liver disease, inflammation, or heart disease.

Low Fibrinogen Symptoms:
  • Easy bruising
  • Excessive bleeding from cuts
  • Bleeding gums
  • Nosebleeds

High Fibrinogen Symptoms:
  • None specific, but related to conditions like inflammation or heart disease

What type of sample is required for this test?
1 mL plasma collected in a 3.2% sodium citrate (light blue-top) tube. 
Proper collection is important for accurate results.

Test Resources
Not available


4–5 business days


180-350 mg/dL

  • Cardiovascular
  • Hematology

Overnight fasting is required.
  • Fasting before a blood draw means you don't eat or drink anything except water. 
  • Your doctor should provide any special instructions related to fasting for your test. Always follow your doctor's instructions.

Blood Draw Options with Fullscript
Fullscript offers several convenient phlebotomy options to complete your lab testing:

Quest Diagnostics Patient Service Centers (PSC)

  • Location: Visit a nearby Quest Diagnostics Patient Service Center.
  • Cost: $10 sample collection fee (paid during lab order checkout).
  • Scheduling: Schedule your appointment here. Appointments are recommended to reduce wait times. Walk-ins are accepted, but may experience delays. Aim to arrive 10 minutes before your appointment.
  • Collection Instructions:
    • Bring a valid ID.
    • Bring your digital or printed requisition form, available in the Labs tab of your Fullscript account.
  • Check-in: Scan the QR code from your confirmation email or follow kiosk instructions.
  • More Info: Quest Diagnostics blood draw guide

Getlabs Mobile Phlebotomy

  • Location: Sample collection at your home or office.
  • Cost: $85 sample collection fee (paid during lab order checkout).
  • Availability: Available in most locations enter your ZIP code during checkout to confirm.
  • Scheduling: Schedule your appointment here through your Fullscript account.
  • Collection Instructions:
    • Have your digital or printed requisition form and valid ID ready.
    • Your phlebotomist will contact you by phone to coordinate arrival.
  • More Info: Getlabs blood draw guide

 Specimen
  • Preferred Specimen(s): 1 mL plasma collected in 3.2% sodium citrate (light blue-top) tube 
  • Alternative: NA 
  • Minimum Volume: 0.5 mL 
  • Collection Instructions: NA 
 Storage and shipping instructions
  • Transport Container: Transport tube 
  • Transport Temperature: Refrigerated (Cold Packs) 
  • Specimen Stability
    • Refrigerated: 8 days 
    • Frozen: 90 days 
  • Reject Criteria: NA 

State restrictions:

Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island

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