What are the goals of antepartum fetal surveillance?
b. Indicate timing of intervention
c. Improve negative predictive values for antepartum testing
Concerning antepartum testing, positive predictive values for true-positive abnormal test results approximate which of the following?
Regarding sleep cyclicity (sleep-wake cycles), which of the following is true?
a. It varies from 5 to 120 minutes.
b. Mean length of inactive state for term fetuses is 23 minutes.
c. In normal term pregnancies, the longest period of inactivity is 68 minutes.
Common fetal movement counting protocols include which of the following?
a. 10 movements in 1 hour
b. 10 movements in 2 hours
c. Informal maternal perceptions of fetal activity are clinically meaningless.
d. Monitor 2 hours daily; an accepted count equals or exceeds a previously established baseline count.
The figure below illustrates which of the following?
Reproduced with permission from Cunningham FG, Leveno KJ, Bloom SL, et al (eds): Antepartum assessment. In Williams Obstetrics, 23rd ed. New York, McGraw-Hill, 2010, Figure 15-2.
a. Minimal counts of fetal movement occur at term.
b. Maximal counts of fetal movement occur at
c. Daily movement counts reach approximately
d. Declining amnionic fluid volume and space account for decreased fetal movements at 32 weeks.
Which of the following is true regarding fetal breathing motions measured in this figure?