During Auscultation of Fetal Heart Tones (FHTs),the Nurse Determines That

During auscultation of fetal heart tones (FHTs) ,the nurse determines that the rate is 136 beats per minute.The nurse's next action should be to:

A) document the results,which are within normal range.
B) take the maternal pulse to verify these findings as the uterine souffle.
C) have the patient change positions and count the FHTs again.
D) notify the physician immediately for possible fetal distress.