Component	Score of 2	Score of 0
Amniotic fluid volume	Single vertical pocket of amniotic fluid is greater than 2 cm	Largest vertical pocket of amniotic fluid is 2 cm or less
Fetal breathing movements	One or more episodes of rhythmic fetal breathing movements of 30 seconds or more within 30 minutes	Abnormal, absent, or insufficient breathing movements
Fetal movement	Three or more discrete body or limb movements within 30 minutes	Abnormal, absent, or insufficient movements
Fetal tone	At least one extension of a fetal extremity with return to flexion, or opening or closing of a hand	Abnormal, absent, or insufficient fetal tone
Nonstress test	Reactive (see Table 1)	Nonreactive