Skip to content

Coagulation Panel

Basic clotting times with fibrinogen and platelet count.

5 tests explainedAlso printed as PT/INR and PTT, Coag Screen, Coagulation Profile, Clotting Screen, PT/PTT

Check your whole panel

Type the results from your report. Each one is placed on its usual range, with its status in words.

Type the results from your Coagulation Panel report. Each one is placed on its usual range as you type.

  • seconds
  • INR
  • sec

Nothing you type here leaves your browser. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.

The 5 tests in this panel

What each one measures and the range labs usually print for adults. Ranges differ a little between labs, so the range on your own report is the one your result is judged against.

  • Prothrombin Time (PT)

    How many seconds your blood plasma takes to clot in the lab. It checks several clotting proteins and is used to follow warfarin.

    Adults
    9.4–12.5 seconds
  • INR (International Normalized Ratio)

    A standard way to report how long your blood takes to clot, used mainly to monitor warfarin and to check clotting and liver function.

    Adults
    0.9–1.1 INR
  • Activated Partial Thromboplastin Time (aPTT)

    A clotting-time test that shows how many seconds your blood takes to clot, and is also used to monitor heparin treatment.

    Adults
    25–37 sec
  • Fibrinogen Activity

    Measures how much working fibrinogen, the protein that forms the mesh of a blood clot, is in your blood.

    Adults
    200–393 mg/dL
  • Platelet Count

    The number of platelets, the small blood cells that help your blood clot, in a sample of your blood.

    Adults
    150–450 ×10³/µL