The nurse is aware that the diagonal conjugate is 12 centimeters. What is the measurement in centimeters of the obstetric conjugate?
a. 10 to 10.5
b. 11 to 11.5
c. 12.5 to 13
d. 14 to 14.5
ANS: A
The obstetric conjugate is approximately 1.5 to 2 centimeters shorter than the diagonal conjugate.
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