Clinical Evaluation of Subcutaneous Lactate Measurement in Patients after Major Cardiac Surgery

Table 4

Clinical evaluation of absolute subcutaneous adipose tissue versus arterial blood (artLAC) lactate concentrations stratified for individual lactate ranges after 6-hour one-point calibration.

𝑛=1369 hourly paired lactate readings	Acceptable %	Unacceptable [1st order] %	Unacceptable [2nd order] %
artLAC<1.5mM	96.1	3.9	0.0
1.5mM≤artLAC<3.5mM	90.9	9.1	0.0
3.5mM≤artLAC<5mM	100.0	0.0	0.0
5mM≤artLAC<10mM	96.6	3.4	0.0
10mM≤artLAC	100.0	0.0	0.0
Total readings	94.5	5.5	0.0