OnlineMedEd: Obstetrics - "Antenatal Testing"

Question 1

What are two scenarios that warrant additional antenatal testing?

Answer 1

• High-risk pregnancies

* Decreased fetal movement

Question 2

A non-stress test (NST) is just ______________.

Answer 2

monitoring fetal heart tones for variability and accelerations

Question 3

If the NST does not show reassuring heat tones, then ______________.

Answer 3

do a vibroacoustic stimulation

Question 4

List the components of the biophysical profile.

Answer 4

• Amniotic fluid index (low is bad)
• Breath attempts
• Movement
• Tone
• NST

Question 5

By BPP score, go through the recommended guidelines.

Answer 5

• 8-10: normal, continue with normal prenatal care
• 0-2: very bad, deliver baby immediately
• 2-8: if greater than 37 weeks, deliver; if less than 37 weeks, do a contraction stress test

Question 6

What accelerations are considered adequate?

Answer 6

• A rise of 15 BPM for at least 15 seconds
• Two of the above in 20 minutes

Note: the 15/15 rule is for fetuses older than 32 weeks. For fetuses younger than 32 weeks, it is 10/10.

Question 7

How are VACs interpreted (what specific numbers)?

Answer 7

The same as NST: 15/15 or 10/10 for 2/20.

Question 8

Give the ranges for AFI.

Answer 8

• 0-5: oligohydramnios
• 5-25: normal
• 25-up: polyhydramnios

Question 9

What is it called when the fetal heart rate has its nadir at the peak of contraction?

Answer 9

Early deceleration (head compression)