Answers
Which of the following factors can have a negative effect on uterine blood
flow?
a. Hypertension
b. Epidural
c. Hemorrhage
d. Diabetes
e. All of the above Correct Ans ~ e. All of the above
Stimulating the vagus nerve typically produces:
a. A decrease in the heart rate
b. An increase in the heart rate
c. An increase in stroke volume
d. No change Correct Ans ~ a. A decrease in the heart rate
The vagus nerve begins maturation 26 to 28 weeks. Its dominance results in
what effect to the FHR baseline?
a. Increases baseline
b. Decreases baseline Correct Ans ~ b. Decreases baseline
T/F: The most common artifact with the ultrasound transducer system for
fetal heart rate is increased variability. Correct Ans ~ True
T/F: All fetal monitors contain a logic system designed to reject artifact.
Correct Ans ~ True
T/F: Fetal arrhythmias can be seen on both internal and external monitor
tracings. Correct Ans ~ True
T/F: Variability and periodic changes can be detected with both internal and
external monitoring. Correct Ans ~ True
T/F: Variable decelerations are a vagal response. Correct Ans ~ True
T/F: Variable decelerations are the most frequently seen fetal heart rate
deceleration pattern in labor. Correct Ans ~ True
Etiology of a baseline FHR of 165bpm occurring for the last hour can be:
1. Maternal supine hypotension
2. Maternal fever
3. Maternal dehydration
4. Unknown
,a. 1 and 2
b. 1, 2 and 3
c. 2, 3 and 4 Correct Ans ~ c. 2, 3 and 4
The most prevalent risk factor associated with fetal death before the onset of
labor is:
a. Low socioeconomic status
b. Fetal malpresentation
c. Uteroplacental insufficiency
d. Uterine anomalies Correct Ans ~ c. Uteroplacental insufficiency
Which of the following conditions is not an indication for antepartum fetal
surveillance?
a. Gestational hypertension
b. Diabetes in pregnancy
c. Fetus in breech presentation
d. Decreased fetal movement Correct Ans ~ c. Fetus in breech
presentation
Which of the following does not affect the degree of fetal activity?
a. Vibroacoustic stimulation
b. Smoking
c. Fetal position
d. Gestational age Correct Ans ~ a. Vibroacoustic stimulation
T/F: Umbilical cord influences that can alter blood flow include true knots,
hematomas, and number of umbilical vessels. Correct Ans ~ True
T/F: Low amplitude contractions are not an early sign of preterm labor.
Correct Ans ~ False
T/F: Corticosteroid administration may cause an increase in FHR
accelerations. Correct Ans ~ False
T/F: Corticosteroid administration may cause an increase in FHR. Correct
Ans ~ True
T/F: Contractions cause an increase in uterine venous pressure and a
decrease in uterine artery perfusion. Correct Ans ~ True
As a result of the intrinsic fetal response to oxygen deprivation, increased
catecholamine levels cause the peripheral blood flow to decrease while the
blood flow to vital organs increases. These flow changes along with
increased catecholamine secretions have what effect on fetal blood pressure
and fetal heart rate?
A. Increase BP and increase HR
, B. Increase BP and decrease HR
C. Decrease BP and increase HR
D. Decrease BP and decrease HR Correct Ans ~ B. Increase BP and
decrease HR
During a term antepartum NST (non-stress test), you notice several variable
decelerations that decrease at least 15 bpm and last at least 15 sec long.
Which of the following is the least likely explanation?
A. True knot
B. Gestational diabetes
C. Umbilical cord entanglement
D. Oligohydramnios Correct Ans ~ B. Gestational diabetes
All of the following are likely causes of prolonged decelerations except:
A. Uterine tachysystole
B. Prolapsed cord
C. Maternal hypotension
D. Maternal fever Correct Ans ~ D. Maternal fever
All of the following could likely cause minimal variability in FHR except
A. Magnesium sulfate administration
B. Fetal sleep cycle
C. Narcotic administration
D. Ephedrine administration Correct Ans ~ D. Ephedrine administration
When an IUPC has been placed, Montevideo units must be ___ or greater for
adequate cervical change to occur.
A. 100
B. 200
C. 300
D. 400 Correct Ans ~ B. 200
What would be a suspected pH in a fetus whose FHTs included recurrent late
decelerations during labor?
A. 7.10
B. 7.26
C. 7.32
D. 7.41 Correct Ans ~ A. 7.10
The nurse notes a pattern of decelerations on the fetal monitor that begins
shortly after the contraction and returns to baseline just before the
contraction is over. The correct nursing response is to:
a. Give the woman oxygen by facemask at 8-10 L/min
b. Position the woman on her opposite side
c. Increase the rate of the woman's intravenous fluid