Use of Ultra High Performance Liquid Chromatography-Tandem Mass Spectrometry to Demonstrate Decreased Serum Statin Levels after Extracorporeal LDL-Cholesterol Elimination

Table 3

Atorvastatin and its metabolites in the matrix filter.

Compound	Number of samples	Average (nmol/L)	Standard deviation (SD)	Median (nmol/L) (range)
AT	3	11.07	12.32	7.83 (0.70–24.69)
p-OH-AT	3	1.18	0.98	1.20 (0.19–2.15)
o-OH-AT	3	8.28	8.25	7.71 (0.33–16.80)
ATL	3	6.32	7.51	3.83 (0.38–14.76)

p-OH-AT: p-hydroxyatorvastatin, o-OH-AT: o-hydroxyatorvastatin, AT: atorvastatin, ATL: atorvastatin lactone.