CTG Flashcards
Normal baseline variability
6-25 bpm at the baseline fetal heart rate
Early deceleration
Uniform repetitive decrease of FHR with slow onset early in the fontraction and slow return to baseline by end of contraction
Variable deceleration
Repetitive/intermittent decreasing of FHR with rapid onset and recovery, most commonly occur simultaneously with contractions but relationship can be variable
Prolonged deceleration and bradycardia
Fall in baseline FHR for more than 90 second and up to 5 minutes. Bradycardia is more than 5 minutes
Late deceleration
Uniform, repetitive decreasing of FHR with usually slow onset mid to end of contraction and nadir more than 20 seconds after peak of contraction, ending after contraction:
Reactive CTG
Normal baseline FHR
Good variability
2 accelerations in 20 mins
No deceleration