coagulation
monitoring is a close second due to the well-defined clinical need for anticoagulant
monitoring [41]. In the area of haemostasis testing, the PT test which is used for monitoring
warfarin is the only clotting test that is standardised across international laboratories,
correcting for differences in reagents. The International Normalised Ratio (INR) is used for
standardising PT tests at both the POC and in the central diagnostics laboratory. Other
haemostasis tests now available in POCT format include the ACT, aPTT and TT.