The nurse is caring for a primigravida who
题型：单项选择题
问题：
The nurse is caring for a primigravida who is scheduled for a fetal acoustic stimulation test (FAST). The nurse should explain to the client that the primary purpose of this test is to
A．induce contractions.
B．induce fetal heart rate accelerations.
C．shorten the contraction stress test.
D．determine fluid volume.