How do you measure the anti-Xa DOACs rivaroxaban or apixaban?

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We don't measure the anti-Xa DOACs
26% (9 votes)
Chromogenic anti-Xa using DOAC-specific calibrators and controls
62% (21 votes)
Chromogenic anti-Xa using the unfractionated heparin curve
3% (1 vote)
Chromogenic anti-Xa using the hybrid heparin curve
9% (3 votes)
Partial thromboplastin time
0% (0 votes)
Prothrombin time
0% (0 votes)
Total votes: 34