单选题
Which of the following assessments indicates fetal distress（）
A、
Fetal scalp pH of 7.14.
B、
Fetal heart rate (FHR) of 144 beats/minute.
C、
Acceleration of FHR with contractions.
D、
Long-term variability.
【正确答案】
A
【答案解析】
A scalp pH of less than 7.25 indicates acidosis and fetal hypoxia. The other options are normal responses of a healthy fetus to labor.
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