【单选题】The nurse is caring for a client during the second stage of labor. On assessment, the nurse notes a slowing of the fetal heart rate and a loss of variability. Which is the initial nursing action?
A.
Turn the client onto her side and give oxygen by face mask at 8 to 10 L/min.
B.
Turn the client onto her back and give oxygen by face mask at 8 to 10 L/min.
C.
Turn the client onto her side and give oxygen by nasal cannula at 2 to 4 L/min.
D.
Turn the client onto her back and give oxygen by nasal cannula at 2 to 4 L/min.