Fetal Testing

Question 1

What is the purpose of the Nonstress test (NST)?

Answer 1

allows the physician to check for fetal well-being

Question 2

What is defined as a reactive NST?

Answer 2

2 or more accelerations within 30 minutes of fetal heart rate tracing

Question 3

What is defined as an acceleration on a NST?

Answer 3

abrupt increase of 15 bpm or greater above baseline with onset to peak time of <30 seconds

Question 4

What does a reactive NST indicate?

Answer 4

adequate fetal oxygenation

Question 5

What could a nonreactive NST mean?

Answer 5

The baby is sleeping

Question 6

What is done to try and wake the baby after a nonreactive NST?

Answer 6

Vibroacoustic stimulation

Question 7

What does a Biophysical Profile (BPP) consist of?

Answer 7

Reactive NST
Fetal breathing: episodes of expansion
Fetal movement: count fetal movements
Fetal muscle tone
Amniotic fluid index

Each category is worth 2 points: BPP 4 or less may indicate fetal compromise

Question 8

What BPP score may indicate fetal compromise?

Answer 8

4 or less

Question 9

What is normal fetal breathing for BPP?

Answer 9

Count # of chest expansions: 1 or more episode 30 seconds or more within a 30 minute time period

Question 10

What is normal fetal movement for BPP?

Answer 10

Count fetal movements; >3 in 30 minutes

Question 11

What is normal fetal muscle tone for BPP?

Answer 11

1 or more episode of flexion and extension of extremity within 30 minutes