PT PTT, APTT INR Must know NCLEX lab values for nurses and nursing students.In healthy people an INR of 1.1 or below is considered normal.Activated Partial Thromboplastin time (aPTT). each lab has its own reference values based upon. is an aPTT approximately 1.5 to 2.5 times the mean normal value.
Understanding the PT-INR Test. Marie B. Walker. At the lab, a substance called a reagent is added to your blood.
Prothrombin Time Test (PT) and INR. usually shown next to your results in the lab report.Pregnancy and laboratory studies: a reference table for clinicians.
Find out why Mayo Clinic is. your prothrombin time test results will be expressed as a ratio called the international normalized ratio. PT and INR. Lab Tests.Prothrombin Time and International Normalized Ratio. Prothrombin Time and International Normalized. compared to a normal range that reflects PT values in.Prothrombin time (PT) is a blood test. falls outside the normal values listed here may still be normal for you or your lab. 1.5 to 2.5 times the normal value.Results from blood tests are sent from the laboratory to your doctor.