Question
The FHR tracing has shown moderate variability with variable decelerations over the last 30 minutes. The FHR tracing now shows minimal variability between variable decelerations. What is the probable cause of this FHR change?1. fetal scalp stimulation2. loss of fetal reserve3. fetal heart block4. fetal arrhythmia
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Evidence boundary
OpenStax Maternal Newborn Nursing, Chapter 16 Review Question 11, supplies a narrative rather than an actual tracing. No baseline rate, blood gas, medication history, or clinical outcome is added. Loss of fetal reserve is the best answer among these choices, not a confirmed diagnosis of fetal acidemia or an official-key claim.