Table 2.

In vitro contracture test results. A contracture ≥ 2 mN at the defined threshold concentrations of caffeine 2 mM and halothane 0.44 mM confirmed MH susceptibility.

Caffeine	Predrug	0,5 mM	1 mM	1,5 mM	2 mM	3 mM	4 mM	32 mM
Test 1	14.0 mN	13.5 mN	15.6 mN	19.6 mN	25.6 mN	29.1 mN	29.1 mN	144 mN
Test 2	12.7 mN	12.2 mN	13.0 mN	17.8 mN	24.7 mN	35.7 mN	32.2 mN	209 mN
Halothane	Predrug	0,11 mM	0,22 mM	0,44 mM	0,66 mM
Test 1	11.6 mN	23.0 mN	35.1 mN	32.1 mN	26.5 mN
Test 2	19.1 mN	20.9 mN	28.1 mN	29.5 mN	26.8 mN