Table 1. Fetus heart rates monitored by ultrasound.

Heart rate (beat/minutes)	t 0	t 3	t 6	t 12	t 24	t 48
Fetus 1	146	180	176	168	166	126
Fetus 2	138	164	180	176	156	122

(t₀): upon admission; (t₃): 3 hours after admission (aa); (t₆): 6 hours aa; (t₁₂): 12 hours aa; (t₂₄): 24 hours aa; (t₄₈): 48 hours aa.