What are the signs of a reassuring fetal heart rate pattern?

Reassuring FHR readings include periodic accelerations, mild variable decelerations lasting less than 30 seconds, or early decelerations that mirror contracitons in duration and timing. Nonreassuring FHR patterns are those that suggest fetal compromise or a declining ability to cope with the stress of labor.

Then, what causes a sinusoidal fetal heart rate pattern?

SINUSOIDAL PATTERN. The true sinusoidal pattern is rare but ominous and is associated with high rates of fetal morbidity and mortality.24 It is a regular, smooth, undulating form typical of a sine wave that occurs with a frequency of two to five cycles per minute and an amplitude range of five to 15 bpm.

What is Saltatory pattern?

Saltatory fetal heart rate pattern. The saltatory fetal heart rate pattern was defined as fetal heart amplitude changes of greater than 25 beats per minute with an oscillatory frequency of greater than 6 per minute for a minimum duration of 1 minute.

What is sine wave pattern?

A sine wave or sinusoid is a mathematical curve that describes a smooth periodic oscillation. A sine wave is a continuous wave. It is named after the function sine, of which it is the graph. It occurs often in pure and applied mathematics, as well as physics, engineering, signal processing and many other fields.

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