AWHONN ADVANCED FETAL HEART MONITORING EXAM – EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALE | 2027 Q&A |
INSTANT DOWNLOAD PDF
1. A term fetus is being monitored during active labor. Which physiologic process
most directly determines the fetal heart rate response to changes in oxygen
availability?
A. Maternal blood pressure alone
B. Fetal glucose concentration alone
C. Fetal autonomic nervous system response to changes in oxygenation and acid-base status
D. Maternal respiratory rate
Rationale: Fetal heart rate patterns reflect the integrated response of the fetal autonomic
nervous system to oxygenation, acid-base status, and other physiologic influences. Sympathetic
and parasympathetic activity continuously modulate the fetal heart rate.
2. Which component is essential when evaluating fetal oxygenation during labor?
A. Maternal temperature only
B. Maternal oxygen-carrying capacity, uteroplacental perfusion, and fetal circulation
C. Maternal cervical dilation alone
D. Fetal estimated weight
Rationale: Fetal oxygenation depends on adequate maternal oxygen content, uterine blood flow,
placental gas exchange, and fetal cardiovascular function. A problem at any point along this
pathway can affect the fetal response.
3. A patient has a baseline fetal heart rate of 140 beats/min over a 10-minute
segment. How should this baseline be classified?
A. Bradycardia
B. Tachycardia
C. Indeterminate baseline
D. Normal baseline
Rationale: A normal fetal heart rate baseline is 110 to 160 beats/min when determined over a
10-minute window. A baseline of 140 beats/min is therefore within the normal range.
4. During interpretation of a fetal heart tracing, the nurse identifies fluctuations in
the fetal heart rate that are irregular in amplitude and frequency. What does this
finding represent?
A. An acceleration
B. Baseline variability
,C. A late deceleration
D. Tachysystole
Rationale: Baseline variability refers to fluctuations in the fetal heart rate around the
established baseline. Variability is an important indicator of fetal neurologic and autonomic
function.
5. Which description best corresponds to moderate fetal heart rate variability?
A. Undetectable variability
B. Variability greater than 25 beats/min
C. Fluctuations with an amplitude of 6 to 25 beats/min
D. A completely regular fetal heart rate
Rationale: Moderate variability is defined as fluctuations in the FHR amplitude of 6 to 25
beats/min. Moderate variability is generally reassuring because it reflects intact autonomic
regulation.
6. A fetal heart tracing shows a baseline of 145 beats/min with moderate variability
and no recurrent decelerations. How should the baseline pattern generally be
viewed?
A. Reassuring
B. Consistent with persistent fetal bradycardia
C. Consistent with persistent fetal tachycardia
D. Diagnostic of metabolic acidemia
Rationale: A baseline within 110 to 160 beats/min with moderate variability and without
concerning recurrent decelerations is generally reassuring. Interpretation must still incorporate
the complete clinical picture.
7. Which statement accurately describes a fetal heart rate acceleration in a fetus at
or beyond 32 weeks?
A. A decrease of at least 15 beats/min lasting 15 minutes
B. An increase of 10 beats/min lasting 5 minutes
C. A transient increase of 5 beats/min lasting 10 seconds
D. An increase of at least 15 beats/min above baseline lasting at least 15 seconds but less
than 2 minutes
Rationale: At or beyond 32 weeks, an acceleration is an abrupt increase of at least 15 beats/min
above baseline lasting at least 15 seconds but less than 2 minutes.
8. A fetal heart rate increase lasts 3 minutes before returning to baseline. How
should this event be classified?
, A. Acceleration
B. Early deceleration
C. Prolonged acceleration
D. Baseline variability
Rationale: An increase in FHR lasting 2 minutes or longer but less than 10 minutes is considered
a prolonged acceleration. If it persists for 10 minutes or longer, the baseline is considered to
have changed.
9. Which fetal heart rate feature is most strongly associated with intact fetal
neurologic and autonomic function?
A. Persistent tachycardia
B. Recurrent late decelerations
C. Absent variability
D. Moderate baseline variability
Rationale: Moderate variability reflects ongoing interaction between the sympathetic and
parasympathetic nervous systems and is an important reassuring feature of fetal status.
10. A tracing shows abrupt decreases in fetal heart rate that vary in timing and shape
with contractions. Which mechanism most commonly produces this pattern?
A. Maternal fever
B. Fetal sleep cycle
C. Umbilical cord compression
D. Maternal hypotension alone
Rationale: Variable decelerations are commonly associated with umbilical cord compression.
Their timing and configuration can vary depending on the degree and duration of compression.
11. Early decelerations begin and end approximately with the uterine contraction.
What is the most likely physiologic cause?
A. Maternal hypoxemia
B. Fetal head compression
C. Placental separation
D. Umbilical cord prolapse
Rationale: Early decelerations typically mirror contractions and are associated with fetal head
compression during labor. They generally do not indicate fetal hypoxemia when occurring alone.
12. A patient has recurrent late decelerations during contractions. Which underlying
mechanism is most concerning?
AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALE | 2027 Q&A |
INSTANT DOWNLOAD PDF
1. A term fetus is being monitored during active labor. Which physiologic process
most directly determines the fetal heart rate response to changes in oxygen
availability?
A. Maternal blood pressure alone
B. Fetal glucose concentration alone
C. Fetal autonomic nervous system response to changes in oxygenation and acid-base status
D. Maternal respiratory rate
Rationale: Fetal heart rate patterns reflect the integrated response of the fetal autonomic
nervous system to oxygenation, acid-base status, and other physiologic influences. Sympathetic
and parasympathetic activity continuously modulate the fetal heart rate.
2. Which component is essential when evaluating fetal oxygenation during labor?
A. Maternal temperature only
B. Maternal oxygen-carrying capacity, uteroplacental perfusion, and fetal circulation
C. Maternal cervical dilation alone
D. Fetal estimated weight
Rationale: Fetal oxygenation depends on adequate maternal oxygen content, uterine blood flow,
placental gas exchange, and fetal cardiovascular function. A problem at any point along this
pathway can affect the fetal response.
3. A patient has a baseline fetal heart rate of 140 beats/min over a 10-minute
segment. How should this baseline be classified?
A. Bradycardia
B. Tachycardia
C. Indeterminate baseline
D. Normal baseline
Rationale: A normal fetal heart rate baseline is 110 to 160 beats/min when determined over a
10-minute window. A baseline of 140 beats/min is therefore within the normal range.
4. During interpretation of a fetal heart tracing, the nurse identifies fluctuations in
the fetal heart rate that are irregular in amplitude and frequency. What does this
finding represent?
A. An acceleration
B. Baseline variability
,C. A late deceleration
D. Tachysystole
Rationale: Baseline variability refers to fluctuations in the fetal heart rate around the
established baseline. Variability is an important indicator of fetal neurologic and autonomic
function.
5. Which description best corresponds to moderate fetal heart rate variability?
A. Undetectable variability
B. Variability greater than 25 beats/min
C. Fluctuations with an amplitude of 6 to 25 beats/min
D. A completely regular fetal heart rate
Rationale: Moderate variability is defined as fluctuations in the FHR amplitude of 6 to 25
beats/min. Moderate variability is generally reassuring because it reflects intact autonomic
regulation.
6. A fetal heart tracing shows a baseline of 145 beats/min with moderate variability
and no recurrent decelerations. How should the baseline pattern generally be
viewed?
A. Reassuring
B. Consistent with persistent fetal bradycardia
C. Consistent with persistent fetal tachycardia
D. Diagnostic of metabolic acidemia
Rationale: A baseline within 110 to 160 beats/min with moderate variability and without
concerning recurrent decelerations is generally reassuring. Interpretation must still incorporate
the complete clinical picture.
7. Which statement accurately describes a fetal heart rate acceleration in a fetus at
or beyond 32 weeks?
A. A decrease of at least 15 beats/min lasting 15 minutes
B. An increase of 10 beats/min lasting 5 minutes
C. A transient increase of 5 beats/min lasting 10 seconds
D. An increase of at least 15 beats/min above baseline lasting at least 15 seconds but less
than 2 minutes
Rationale: At or beyond 32 weeks, an acceleration is an abrupt increase of at least 15 beats/min
above baseline lasting at least 15 seconds but less than 2 minutes.
8. A fetal heart rate increase lasts 3 minutes before returning to baseline. How
should this event be classified?
, A. Acceleration
B. Early deceleration
C. Prolonged acceleration
D. Baseline variability
Rationale: An increase in FHR lasting 2 minutes or longer but less than 10 minutes is considered
a prolonged acceleration. If it persists for 10 minutes or longer, the baseline is considered to
have changed.
9. Which fetal heart rate feature is most strongly associated with intact fetal
neurologic and autonomic function?
A. Persistent tachycardia
B. Recurrent late decelerations
C. Absent variability
D. Moderate baseline variability
Rationale: Moderate variability reflects ongoing interaction between the sympathetic and
parasympathetic nervous systems and is an important reassuring feature of fetal status.
10. A tracing shows abrupt decreases in fetal heart rate that vary in timing and shape
with contractions. Which mechanism most commonly produces this pattern?
A. Maternal fever
B. Fetal sleep cycle
C. Umbilical cord compression
D. Maternal hypotension alone
Rationale: Variable decelerations are commonly associated with umbilical cord compression.
Their timing and configuration can vary depending on the degree and duration of compression.
11. Early decelerations begin and end approximately with the uterine contraction.
What is the most likely physiologic cause?
A. Maternal hypoxemia
B. Fetal head compression
C. Placental separation
D. Umbilical cord prolapse
Rationale: Early decelerations typically mirror contractions and are associated with fetal head
compression during labor. They generally do not indicate fetal hypoxemia when occurring alone.
12. A patient has recurrent late decelerations during contractions. Which underlying
mechanism is most concerning?
