Page 204 - كتاب تمريض نسا الاكتروني

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5) Disruption of maternal movement.
 Abnormal FHR patterns:
1. Tachycardia (more than 160 beat/min):

a base line of fetal heart rate for at least 10 minutes. That is greater than 160 beat/min
for at least 10 minutes.

It's degree: - Mild ◊ 161 : 180 beat/minute - Sever ◊ 181 beat/minute.
Causes :- Fetal distress.

- Fetal anemia.
- Maternal anemia.
- Prematurity.

- Maternal fever.
- Maternal or fetal hyperthyroidism.
- Drugs as atropine and beta-sympathomimetic agents.
Management ;

According to causative factor.

- Antipyretic: to slow metabolism and decreased fever.
- Increasing oxygen to treat fetal hypoxia.
- Assess maternal temperature.
- Monitor for change of fetal heart rate pattern.

- Hydrate to improve circulating volume.
- Turn patient to left side.
- Reduce stressors (turn off oxytocin, treat maternal fever).

2-Bradycardia (less than 120 beat/minute):
base line fetal heart rate between 100:120 beat/minute.
Causes:

- Fetal distress.
- Congenital fetal heart block.
- Beta – blockers given to the mother.

- Fetal head compression.
- Fetal hypoxia.
- Fetal acidosis.
- Fetal heart block.

- Umbilical cord compression.

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