From: Using fetal scalp stimulation with Doppler ultrasonography to enhance intermittent auscultation in low-resource settings: a diagnostic trial from Tanzania
IAa
Acidemiac
No Acidemia
Total
Non-reassuring fetal status
11
23
34
Reassuring fetal status
40
177
217
51
200
251
IA + FSSTb
Absent FSST
12
22
Present FSST
27
206
233
39
228
267