A patient in labor has been given a local anesthetic. A nurse is monitoring the patient and the fetus via a maternal-fetal monitor. Which clinical finding would the nurse anticipate in the fetus initially?
a. Tachycardia
b. Bradycardia
c. Fetal distress
d. Uterine contractility
ANS: B
Local anesthetics can cross the placenta, causing bradycardia and central nervous system depression in the neonate.
Local anesthetics do not cause fetal tachycardia.
Local anesthetics might cause fetal distress, but this would be preceded by initial bradycardia.
Local anesthetics can depress uterine contractility and maternal expulsion effort.
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