Coagulation Labs

Question 1

INR (International normalized ratio)

Answer 1

0. 8-1.0 (normal)

2. 0-3.5 (anticoagulantion)

Question 2

PTT or aPTT (Partial thromboplastin time)

Answer 2

60-70 sec (PTT)
30-70 sec (aPTT)
*Pts will be 1.5-2.5 times the control value in sec for these two labs when receiving anticoagulant therapy.