AWHONN Advanced Fetal Heart Monitoring — Practice Exam |
Complete Exam Questions with Verified Correct Answers and
Detailed Rationales –2026/2027 Latest Update | Already
Graded A+
1. A laboring patient has a fetal heart rate baseline of 145 bpm,
moderate variability, no late or variable decelerations, and occasional
accelerations. Which interpretation is most appropriate?
A. Category I
B. Category II
C. Category III
D. Sinusoidal pattern
Answer: A. Category I
Rationale: This tracing meets all the essential features of Category I: baseline
110–160 bpm, moderate variability, and absence of late and variable
decelerations. Accelerations may be present or absent. Category I is strongly
predictive of normal fetal acid-base status at the time being assessed.
The important point is that the tracing is reassuring because moderate
variability is preserved and there are no concerning deceleration patterns. A
Category I tracing does not require intervention simply because labor is
continuing.
2. A fetal heart rate baseline is 170 bpm and remains at this level for 15
minutes. Which finding is present?
A. Fetal bradycardia
B. Fetal tachycardia
C. Moderate variability
D. Prolonged acceleration
Answer: B. Fetal tachycardia
Rationale: A baseline greater than 160 bpm lasting at least 10 minutes is
classified as fetal tachycardia. The nurse should not interpret tachycardia in
1
,isolation. Maternal temperature, infection, medications, dehydration,
maternal physiologic changes, and fetal conditions should be considered.
A persistent elevated baseline can become more concerning when
accompanied by minimal or absent variability, recurrent decelerations,
or other evidence of deteriorating fetal status.
3. Which fetal heart rate characteristic provides important evidence that
the fetal autonomic nervous system is functioning appropriately?
A. Absent variability
B. Moderate variability
C. Persistent tachycardia
D. Recurrent late decelerations
Answer: B. Moderate variability
Rationale: Moderate variability represents fluctuations in the fetal heart rate
generated by the interaction of the sympathetic and parasympathetic nervous
systems. It is one of the most reassuring components of the fetal heart rate
tracing.
Moderate variability does not mean that the fetus can never become
compromised. Instead, it provides evidence that, at the time assessed, the
fetus retains functioning neurologic and cardiovascular responses. AWHONN
emphasizes evaluating this finding together with the entire tracing and
clinical circumstances.
4. The fetal heart rate gradually decreases after the contraction begins,
reaches its lowest point after the contraction peak, and returns to
baseline after the contraction ends. Which deceleration is present?
A. Early
B. Variable
C. Late
D. Prolonged
2
,Answer: C. Late
Rationale: The timing described is characteristic of a late deceleration. The
deceleration begins after the contraction has started, and its nadir occurs after
the peak of the contraction.
Late decelerations are associated with reduced uteroplacental oxygen
transfer. Recurrent late decelerations therefore require evaluation of factors
such as maternal hypotension, uterine tachysystole, placental dysfunction,
and other causes of reduced fetal oxygen availability.
5. Which physiologic mechanism is most commonly associated with
variable decelerations?
A. Fetal head compression
B. Umbilical cord compression
C. Maternal fever
D. Placental aging
Answer: B. Umbilical cord compression
Rationale: Variable decelerations are classically associated with intermittent
umbilical cord compression. Compression affects blood flow through the
umbilical vessels and produces an abrupt change in fetal heart rate.
Not every variable deceleration represents severe compromise. The nurse
should evaluate frequency, duration, depth, recovery, baseline variability,
and associated fetal heart rate findings rather than judging the
deceleration solely by its presence.
6. A tracing demonstrates an abrupt fetal heart rate decrease from 145
to 90 bpm followed by a rapid return to baseline. The timing varies from
contraction to contraction. What is the most likely interpretation?
A. Early deceleration
B. Late deceleration
3
, C. Variable deceleration
D. Sinusoidal pattern
Answer: C. Variable deceleration
Rationale: Abrupt onset and variable timing are characteristic of variable
decelerations. These findings are commonly related to umbilical cord
compression.
The relationship between the deceleration and the contraction is particularly
useful. Early and late decelerations have relatively predictable relationships
with contractions, whereas variable decelerations can occur at different
points in the contraction cycle.
7. Which tracing meets the criteria for Category III?
A. Baseline 145 bpm with moderate variability
B. Baseline 155 bpm with minimal variability only
C. Absent variability with recurrent late decelerations
D. Baseline 150 bpm with occasional early decelerations
Answer: C. Absent variability with recurrent late decelerations
Rationale: Category III includes absent baseline variability accompanied
by recurrent late decelerations, recurrent variable decelerations, or
bradycardia. A sinusoidal pattern is another Category III pattern.
The key concept is the combination of absent variability plus an additional
abnormal pattern. Minimal variability alone is Category II, not Category III.
8. A patient receiving oxytocin develops recurrent late decelerations and
contractions occurring six times in 10 minutes. What is the priority
concern?
A. Normal active labor
B. Uterine tachysystole with a concerning fetal response
4
Complete Exam Questions with Verified Correct Answers and
Detailed Rationales –2026/2027 Latest Update | Already
Graded A+
1. A laboring patient has a fetal heart rate baseline of 145 bpm,
moderate variability, no late or variable decelerations, and occasional
accelerations. Which interpretation is most appropriate?
A. Category I
B. Category II
C. Category III
D. Sinusoidal pattern
Answer: A. Category I
Rationale: This tracing meets all the essential features of Category I: baseline
110–160 bpm, moderate variability, and absence of late and variable
decelerations. Accelerations may be present or absent. Category I is strongly
predictive of normal fetal acid-base status at the time being assessed.
The important point is that the tracing is reassuring because moderate
variability is preserved and there are no concerning deceleration patterns. A
Category I tracing does not require intervention simply because labor is
continuing.
2. A fetal heart rate baseline is 170 bpm and remains at this level for 15
minutes. Which finding is present?
A. Fetal bradycardia
B. Fetal tachycardia
C. Moderate variability
D. Prolonged acceleration
Answer: B. Fetal tachycardia
Rationale: A baseline greater than 160 bpm lasting at least 10 minutes is
classified as fetal tachycardia. The nurse should not interpret tachycardia in
1
,isolation. Maternal temperature, infection, medications, dehydration,
maternal physiologic changes, and fetal conditions should be considered.
A persistent elevated baseline can become more concerning when
accompanied by minimal or absent variability, recurrent decelerations,
or other evidence of deteriorating fetal status.
3. Which fetal heart rate characteristic provides important evidence that
the fetal autonomic nervous system is functioning appropriately?
A. Absent variability
B. Moderate variability
C. Persistent tachycardia
D. Recurrent late decelerations
Answer: B. Moderate variability
Rationale: Moderate variability represents fluctuations in the fetal heart rate
generated by the interaction of the sympathetic and parasympathetic nervous
systems. It is one of the most reassuring components of the fetal heart rate
tracing.
Moderate variability does not mean that the fetus can never become
compromised. Instead, it provides evidence that, at the time assessed, the
fetus retains functioning neurologic and cardiovascular responses. AWHONN
emphasizes evaluating this finding together with the entire tracing and
clinical circumstances.
4. The fetal heart rate gradually decreases after the contraction begins,
reaches its lowest point after the contraction peak, and returns to
baseline after the contraction ends. Which deceleration is present?
A. Early
B. Variable
C. Late
D. Prolonged
2
,Answer: C. Late
Rationale: The timing described is characteristic of a late deceleration. The
deceleration begins after the contraction has started, and its nadir occurs after
the peak of the contraction.
Late decelerations are associated with reduced uteroplacental oxygen
transfer. Recurrent late decelerations therefore require evaluation of factors
such as maternal hypotension, uterine tachysystole, placental dysfunction,
and other causes of reduced fetal oxygen availability.
5. Which physiologic mechanism is most commonly associated with
variable decelerations?
A. Fetal head compression
B. Umbilical cord compression
C. Maternal fever
D. Placental aging
Answer: B. Umbilical cord compression
Rationale: Variable decelerations are classically associated with intermittent
umbilical cord compression. Compression affects blood flow through the
umbilical vessels and produces an abrupt change in fetal heart rate.
Not every variable deceleration represents severe compromise. The nurse
should evaluate frequency, duration, depth, recovery, baseline variability,
and associated fetal heart rate findings rather than judging the
deceleration solely by its presence.
6. A tracing demonstrates an abrupt fetal heart rate decrease from 145
to 90 bpm followed by a rapid return to baseline. The timing varies from
contraction to contraction. What is the most likely interpretation?
A. Early deceleration
B. Late deceleration
3
, C. Variable deceleration
D. Sinusoidal pattern
Answer: C. Variable deceleration
Rationale: Abrupt onset and variable timing are characteristic of variable
decelerations. These findings are commonly related to umbilical cord
compression.
The relationship between the deceleration and the contraction is particularly
useful. Early and late decelerations have relatively predictable relationships
with contractions, whereas variable decelerations can occur at different
points in the contraction cycle.
7. Which tracing meets the criteria for Category III?
A. Baseline 145 bpm with moderate variability
B. Baseline 155 bpm with minimal variability only
C. Absent variability with recurrent late decelerations
D. Baseline 150 bpm with occasional early decelerations
Answer: C. Absent variability with recurrent late decelerations
Rationale: Category III includes absent baseline variability accompanied
by recurrent late decelerations, recurrent variable decelerations, or
bradycardia. A sinusoidal pattern is another Category III pattern.
The key concept is the combination of absent variability plus an additional
abnormal pattern. Minimal variability alone is Category II, not Category III.
8. A patient receiving oxytocin develops recurrent late decelerations and
contractions occurring six times in 10 minutes. What is the priority
concern?
A. Normal active labor
B. Uterine tachysystole with a concerning fetal response
4
