III. Mild Fetal Tachycardia (FHR 160-180 bpm)

  1. Usually benign if normal FHR Variability
  2. Other causes
    1. Maternal fever, dehydration or anxiety
    2. Maternal ketosis
    3. Medications
      1. Anticholinergic Medications (e.g. Benadryl)
      2. Sympathomimetic medications (e.g. Terbutaline)
    4. Fetal movement
    5. Preterm Fetus
    6. Maternal Thyrotoxicosis
    7. Maternal Anemia

IV. Significant Fetal Tachycardia (FHR >180 bpm)

  1. Chorioamnionitis (especially if maternal fever)
  2. Fetal arrhythmia or congenital defect (FHR >200 bpm)

V. References

  1. Bailey (2000) ALSO, E:1-13
  2. Gabbe (2002) Obstetrics, p. 395
  3. Rylander (2001) Clin Fam Pract 3(2):287-305 [PubMed] (or open in [QxMD Read])

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Ontology: Fetal tachycardia (C0410918)

Definition (NCI) An increase in the fetal heart rate above the normal baseline values.
Concepts Sign or Symptom (T184)
SnomedCT 240298005, 199590007
Italian Tachicardia fetale
Dutch foetale tachycardie, tachycardiie, foetaal, tachycardie foetaal
German fetale Tachykardie, Tachykardie fetal
Japanese 胎児頻脈, タイジヒンミャク
Spanish Fetal tachycardia, taquicardia fetal (trastorno), taquicardia fetal, Taquicardia fetal
English fetal tachycardia (diagnosis), fetal tachycardia, Tachycardia fetal, Foetal tachycardia, Tachycardia foetal, Fetal Tachycardia, Fetal tachycardia, Fetal tachycardia (disorder)
Czech Tachykardie u plodu, Fetální tachykardie
Hungarian Tachycardia, foetalis, Magzati tachycardia, Foetalis tachycardia, Magzati szapora szívverés
Portuguese Taquicardia fetal
French Tachycardie foetale