Transcutaneous electrical nerve stimulation (TENS) may be used during labor to:
a. Prevent nausea.
b. Lessen pain.
c. Stimulate contractions.
d. Reduce bleeding.
ANS: B
TENS is thought to interfere with the transmission of pain signals to the brain. It can be used in combination with an analgesic medication, thus reducing drug dose needed for pain relief.
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