The contraction stress test.

: The contraction stress test has long been used to assess fetal wellbeing in the antepartum period. The CST continues to be a valuable tool for practicing obstetricians when interpreted and managed according to previously published guidelines. More recent data have further defined the level of compromise at which the CST becomes abnormal. When compared to similar reports using the NST or biophysical profile, we are better able to define the capabilities of these various antepartum testing methods. Consequently, we were able to align antepartum testing schemes for the specific clinical situation as opposed to using one method for all patients.