Gynaecology & Obstetrics Which of the following explanations is not an explanation for decreased variability of the fetal heart tracing: A Fetal "sleep state" B Prematurity C Barbiturate ingestion D Fetal stimulation 💡 Explanation Which of the following explanations is not an explanation for decreased variability of the fetal heart tracing: ✓ Correct Answer: D. Fetal stimulation