Question A 30-year-old patient is diagnosed with his third episode of DVT Option. He is currently hospitalized and receiving heparin therapy Option. The physician orders a thrombotic risk battery of tests Option. The most appropriate action that the laboratory should take is to:

a Option. call the physician and explain that testing will not be accurate during anticoagulant therapy and during the thrombotic episode

b Option. perform the battery of tests in the thrombotic risk profile but note that results are not reliable

c Option. perform a PT and an APTT and, if prolonged, refuse to do the testing

d Option. call the physician and explain that this patient is not a candidate for thrombotic risk testing