A patient with bleeding symptoms presents to the emergency r…
A patient with bleeding symptoms presents to the emergency room and the following results are obtained. The patient reports that they are not currently taking any anticoagulant drugs. Which test would be most helpful to perform next? TEST RESULT REFERENCE INTERVAL Platelet Count 321,000/uL 150,000 – 450,000/uL PT 17.8 seconds 10.5 – 13.5 seconds aPTT 27.8 seconds 25.0 – 35.0 seconds