|Description||Useful for monitoring Coumadin® therapy.
NOTE: This test, when ordered on Medicare patients, is subject to the National Coverage Determination (NCD) policy "Prothrombin Time (PT)". Please verify that the diagnosis code (ICD-9) you have chosen demonstrates medical necessity for the test as documented in the physician's patient record. The CMS web site or the NorDx Limited Coverage Documentation Guide are available to assist you with this verification. A properly executed Advance Beneficiary Notice (ABN) must be submitted with the specimen if medical necessity is not demonstrated by the ICD-9 code chosen.
|Specimen||Draw blood in a light blue-top (3.2% sodium citrate) tube. Forward promptly at ambient temperature only. SPECIMEN MUST ARRIVE WITHIN 24 HOURS OF DRAW.
|Reference Values||0.9 - 1.2|
|Analytic Time||1 Day - Available STAT|
|Day(s) Test Set Up||Monday through Sunday|