Measured indicator

Spontaneous activity

Spike amplitude

Before thiopental injection

100%

100%

Thiopental action

hypoxic state 10 - 30 s

138%*

87.5%*

narcotic state 30 - 120 s

29.3%**

106%*

Post-narcotic period

3 - 5 min

60.9%

101.5%

10 - 15 min

120%*

93.5%

30 min

110%*

75.8%**

1 h

141%*

58%*

1 h 30 min

128%

55.4%

2 h

150%

50.6%

3 h

not established

not established

4 h

not established

not established

5 h

not established

not established