Skip to main content
. 2013 Mar 26;76(6):988–996. doi: 10.1111/bcp.12122

Table 1.

Tacrolimus concentrations (ng ml−1) and concentration ratios in maternal, umbilical cord blood and plasma samples. Results reported as mean ± SD (range)

Concentration Maternal venous Umbilical cord venous Umbilical cord arterial
Blood 9.0 ± 3.4 6.6 ± 1.8 5.7 ± 1.0
(4.1, 13.7) (4.9, 10.1) (4.6, 7.25)
(n = 8) (n = 7) (n = 5)
Plasma 0.40 ± 0.20 0.09 ± 0.04
(0.23, 0.80) (0.05, 0.16)
(n = 7) (n = 6)
Unbound drug 0.017 ± 0.010 0.003 ± 0.001
(0.006, 0.030) (0.002, 0.006)
(n = 7) (n = 5)
Ratio Venous umbilical cord : maternal Umbilical cord arterial : venous
Blood 0.71 ± 0.18 1.00 ± 0.12
(0.44, 0.99) (0.81, 1.14)
(n = 7) (n = 5)
Plasma 0.23 ± 0.11
(0.13, 0.44)
(n = 6)
Unbound drug 0.19 ± 0.10
(0.09, 0.36)
(n = 5)