Obstetrics Book

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Fetal TachycardiaAka: FHR Tachycardia

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  1. See Also
    1. Fetal Assessment
    2. Fetal Testing Indications
    3. Fetal Heart Tracing
  2. Definition
    1. Fetal Heart Rate >160 bpm
  3. 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
  4. Significant Fetal Tachycardia (FHR >180 bpm)
    1. Chorioamnionitis (especially if maternal fever)
    2. Fetal arrhythmia or congenital defect (FHR >200 bpm)
  5. References
    1. Bailey (2000) ALSO, E:1-13
    2. Gabbe (2002) Obstetrics, p. 395
    3. Rylander (2001) Clin Fam Pract 3(2):287

Fetal tachycardia (C0410918)

ConceptsSign or Symptom (T184)
ICD9659.7
EnglishFetal tachycardia
Spanishtaquicardia fetal
Parent ConceptsTachyarrhythmia (C0080203), Fetal dysrhythmia (C0455991)
SourcesMTHICD9, SCTSPA, SNOMEDCT
Derived from the NIH UMLS (Unified Medical Language System)



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