OB ELECTRONIC FETAL MONITORING|QUESTIONS AND 100% CORRECT WELL DETAILED ANSWERS|LATEST UPDATE !!!!2025/2026|GUARANTEED PASS|GRADED A+

AND 100% CORRECT WELL DETAILED




Moderate variability - ANSWER 6-25 bpm



Causes of decreased variability - ANSWER Hypoxemia/acidosis

Fetal sleep cycles

Drugs (magnesium, narcotics)

Prematurity

Arrythmias

Fetal tachycardia

Preexisting neurologic abonormality

Congenital anomalies



Absent variability - ANSWER undetectable



Minimal variability - ANSWER > undetectable but <5/min



Marked variability - ANSWER >25 bpm



Fetal oxygenation is indicated by - ANSWER Variability



Causes of marked variability - ANSWER fetal stimulation

Mild, transient hypoxemia


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, Sympathomimetic drugs



Acceleration - ANSWER apparent abrupt increase in FHR from the most recent
baseline

- 32 weeks and up, 15 bpm for 15 sec - 2 minutes

- <32 weeks, 10 bpm 10sec - 2min



Prolonged acceleration - ANSWER 2 minutes - <10 minutes



Baseline change - ANSWER = or > 10 minutes



Reactive Non-stress test (NST) - ANSWER 2 accelerations in 20 minutes w/ moderate
variability



When are non-stress tests done? - ANSWER



Variable deceleration - ANSWER abrupt onset to nadir <30 seconds w/ drop of > or =
15 bmp

For > or = 15 sec - <2minutes

(from onset to nadir)



Causes of variable decelerations - ANSWER cord compression

= vagal stimulation



Early deceleration - ANSWER - symmetrical, gradual decrease and return of FHR for >
or = 30 seconds from onset to nadir

- nadir occurs at the same time as the peak of the contraction




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