Normal APTT results are usually between 25-40 seconds; PTT results are between 60-70 seconds. APTT results for a patient on heparin should be 1.5-2.5 times normal values.
Abnormal results are increased levels in those with a bleeding disorder or liver disease. With those taking heparin, low levels indicate the dose is too low, high levels indicate the dose is too high.
Complications of a bruise or swelling around the puncture site, which can be treated with moist warm compresses. People with coagulation problems may bleed for a longer period than normal.