OB Quiz 2 - Study Guide Questions and Verified
Answers
What is the normal fetal heart rate? Correct Answer: 120-160 bpm
Variability Correct Answer: FHR is absent or minimal; short term variability is absent; long term
variability is minimal; caused by hypoxia, acidosis, maternal drug ingestions, fetal sleep.
Accels Correct Answer: Increase in FHR above the BL of 15bpm for at least 15 seconds or longer.
Early decelerations Correct Answer: -Mirror contractions
-Is a normal finding that occurs w/ compression of the fetal head.
-No tx required. Continue to assess FHR.
Variable decelerations Correct Answer: -Can occur w/ contractions or alone.
-Cause an abrupt drop in FHR < 30 sec.
-Are often V or W shaped.
-Caused by cord compression.
-Tx by changing maternal position & assess for prolapsed cord.
-Administer O2
Late decelerations Correct Answer: -Begins late in the contraction and gradually declines > 30 sec. to
lowest point and then returns to BL after the contraction is over.
-Is a sign of uteroplacental insufficiency of O2 to the fetus.
-Tx by turning pt. onto the left side, give O2 via a mask @ 8-10 L/min, IV fluids bolus, turn off Pitocin,
and notify DR.
Non stress test (NST) Correct Answer: Used to assess fetal status using an electric fetal monitor.
, REACTIVE= 2 accelerations in FHR over 20 min.
NON-REACTIVE= <2 accelerations in FHR over 40 min.
Contraction Stress Test Correct Answer: A stress test used to stimulate contractions and evaluate the
ability of the fetus to tolerate the stress of labor and delivery; also known as oxytocin challenge test.
NEGATIVE= Healthy fetus does not react to the contractions.
POSTIVE= Compromised fetus will demonstrate late decelerations in FHR which indicates
uteroplacental insufficiency.
Contractions characteristics Correct Answer: -Frequency: end of 1 contraction to beginning of next
contraction.
-Duration: length of contraction
-Intensity: Mild. Moderate, or Strong.
What are the 4 stages of labor? Correct Answer: 1) Contractions (latent, active & transitional)
2) Pushing- begins w/ complete cervical dilation and ends w/ delivery of fetus.
3) Placenta- begins immediately after fetus is born and ends w/ birth of placenta.
4) Recovery- Begins immediately after birth of placenta to 1-4 hours after delivery.
Latent contractions Correct Answer: -Pt. is 0-3 cm dilated
-Frequency: Occur every 10-20 min. to 5-7 min.
-Duration: Last 15-20 sec. to 30-40 sec.
-Intensity: Mild
Active Contractions Correct Answer: -Pt. is 4-7 cm dilated
-Frequency: Every 2-3 min.
Answers
What is the normal fetal heart rate? Correct Answer: 120-160 bpm
Variability Correct Answer: FHR is absent or minimal; short term variability is absent; long term
variability is minimal; caused by hypoxia, acidosis, maternal drug ingestions, fetal sleep.
Accels Correct Answer: Increase in FHR above the BL of 15bpm for at least 15 seconds or longer.
Early decelerations Correct Answer: -Mirror contractions
-Is a normal finding that occurs w/ compression of the fetal head.
-No tx required. Continue to assess FHR.
Variable decelerations Correct Answer: -Can occur w/ contractions or alone.
-Cause an abrupt drop in FHR < 30 sec.
-Are often V or W shaped.
-Caused by cord compression.
-Tx by changing maternal position & assess for prolapsed cord.
-Administer O2
Late decelerations Correct Answer: -Begins late in the contraction and gradually declines > 30 sec. to
lowest point and then returns to BL after the contraction is over.
-Is a sign of uteroplacental insufficiency of O2 to the fetus.
-Tx by turning pt. onto the left side, give O2 via a mask @ 8-10 L/min, IV fluids bolus, turn off Pitocin,
and notify DR.
Non stress test (NST) Correct Answer: Used to assess fetal status using an electric fetal monitor.
, REACTIVE= 2 accelerations in FHR over 20 min.
NON-REACTIVE= <2 accelerations in FHR over 40 min.
Contraction Stress Test Correct Answer: A stress test used to stimulate contractions and evaluate the
ability of the fetus to tolerate the stress of labor and delivery; also known as oxytocin challenge test.
NEGATIVE= Healthy fetus does not react to the contractions.
POSTIVE= Compromised fetus will demonstrate late decelerations in FHR which indicates
uteroplacental insufficiency.
Contractions characteristics Correct Answer: -Frequency: end of 1 contraction to beginning of next
contraction.
-Duration: length of contraction
-Intensity: Mild. Moderate, or Strong.
What are the 4 stages of labor? Correct Answer: 1) Contractions (latent, active & transitional)
2) Pushing- begins w/ complete cervical dilation and ends w/ delivery of fetus.
3) Placenta- begins immediately after fetus is born and ends w/ birth of placenta.
4) Recovery- Begins immediately after birth of placenta to 1-4 hours after delivery.
Latent contractions Correct Answer: -Pt. is 0-3 cm dilated
-Frequency: Occur every 10-20 min. to 5-7 min.
-Duration: Last 15-20 sec. to 30-40 sec.
-Intensity: Mild
Active Contractions Correct Answer: -Pt. is 4-7 cm dilated
-Frequency: Every 2-3 min.
