NCC EFM EXAM Extra 470+ Practice Questions and
Answers
Acceleration - ANSWER -Onset to peak <30 seconds
- >15 bpm above baseline by >15 seconds but <2 minutes
-(Before 32 weeks gestation: peak >10 bpm and lasting >10 seconds)
Prolonged Acceleration - ANSWER >2 minutes but <10 minutes
Early Deceleration - ANSWER -Gradual decrease and return of FHR associated
with a contraction
-Onset to nadir of >30 seconds
-Nadir occurs at the same time as the peak of the contraction
Late Deceleration - ANSWER -Gradual decrease and return of FHR associated
with a contraction
-Onset to nadir of >30 seconds
-Nadir occurs after the peak of the contraction
Prolonged Decleration - ANSWER -Abrupt decrease with onset to nadir <30
seconds
-The decrease is >15 bpm by >15 seconds but <2 minutes
Recurrent Decelerations - ANSWER Decelerations occurring with >50% of
contractions in any 20 minutes
Intermittent Decelerations - ANSWER Decelerations occurring with <50% of
contractions in any 20 minutes
Sinusoidal Pattern - ANSWER Visually apparent, smooth, sine wave-like pattern in
FHR with cycle frequency of 3-5/minute that persists for >20 minutes
Tachysystole - ANSWER More than 5 ctx in a 10 minute segment averaged over a
30 minute period
Narcotic FHR Affects (2) - ANSWER -Decrease in variability
-Decrease in frequency of acceleration
Stadol FHR Affects (2) - ANSWER -Transient sinusoidal FHR pattern
-Slight increase in baseline rate
Cocaine FHR Affects (1) - ANSWER -Decrease in variability
Corticosteroid FHR Affects (1) - ANSWER -Decrease in variability with
betamethasone but not dexamethasone
Answers
Acceleration - ANSWER -Onset to peak <30 seconds
- >15 bpm above baseline by >15 seconds but <2 minutes
-(Before 32 weeks gestation: peak >10 bpm and lasting >10 seconds)
Prolonged Acceleration - ANSWER >2 minutes but <10 minutes
Early Deceleration - ANSWER -Gradual decrease and return of FHR associated
with a contraction
-Onset to nadir of >30 seconds
-Nadir occurs at the same time as the peak of the contraction
Late Deceleration - ANSWER -Gradual decrease and return of FHR associated
with a contraction
-Onset to nadir of >30 seconds
-Nadir occurs after the peak of the contraction
Prolonged Decleration - ANSWER -Abrupt decrease with onset to nadir <30
seconds
-The decrease is >15 bpm by >15 seconds but <2 minutes
Recurrent Decelerations - ANSWER Decelerations occurring with >50% of
contractions in any 20 minutes
Intermittent Decelerations - ANSWER Decelerations occurring with <50% of
contractions in any 20 minutes
Sinusoidal Pattern - ANSWER Visually apparent, smooth, sine wave-like pattern in
FHR with cycle frequency of 3-5/minute that persists for >20 minutes
Tachysystole - ANSWER More than 5 ctx in a 10 minute segment averaged over a
30 minute period
Narcotic FHR Affects (2) - ANSWER -Decrease in variability
-Decrease in frequency of acceleration
Stadol FHR Affects (2) - ANSWER -Transient sinusoidal FHR pattern
-Slight increase in baseline rate
Cocaine FHR Affects (1) - ANSWER -Decrease in variability
Corticosteroid FHR Affects (1) - ANSWER -Decrease in variability with
betamethasone but not dexamethasone