The therapeutic range is usually about double the normal clotting time. It's important to be in this range because if your ACT is too low, you may be in danger of a blood clot forming during a procedure.

Test results are measured in seconds of time. Your results will show how long your blood took to clot, and will often compare them with results from a normal sample tested at the same time. A normal …

The normal clotting time is typically between 11 and 13 seconds. If your blood does not clot within that normal range, you may have a clotting or bleeding disorder.

A normal thrombin time is about 12 to 19 seconds. A longer thrombin time can mean low fibrinogen, high fibrinogen, or fibrinogen that's not working normally. It can also be because of medicines that affect …

Normal levels are 60% to 130% of normal clotting time. described in seconds of time, showing how long it takes your blood sample to clot. Each factor must be present and working correctly in order to form …

Even if you have hemophilia, the results of your PTT and PT tests may be normal, so the blood test for factor VIII is used to confirm the diagnosis. You also will probably have your platelet count measured.

A normal level of protein C in the blood is between 70% and 150%. Lower-than-normal readings may mean that you have a protein C deficiency. A lower-than-normal level of protein C may be caused by: …

The INR is a ratio, so it's just a number, not a number tied to time or another value. Your results will vary according to your age, the medicines you take, and any health problems you have.

The normal range for factor XI activity levels is 65 to 130 U/dL, or 65% to 130%. If your results are lower than normal, it means you may have factor XI deficiency.

PTT as related to heparin therapeutic range ated Partial Thromboplastin Time (PTT) assay. Use of the PTT for monitoring therapy with unfractionated heparin is based upon achieving a therapeu ic range …