The answer is (C) hope this helps you
<span>True, clia-waived handheld coagulation analyzers are commercially available for performing a pt/inr test in the medical office.
The machine is more simple since it only needs to puncture your finger, not your vein. Watching PT/INR level is needed for patient with heart disease that got anticoagulant therapy like warfarin</span>
Answer:
Online medical direction
Explanation:
You were given a medical direction to give a patient oxygen, over the phone, therefore it being online.