Dystocia Flashcards
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Dystocia Define
long, difficult abnormal labor
causes of dystocia
5 P’s
- Powers
- Passage through pelvis
- Passenger (newborn)
- Positioning
- Psychological stress
powers of labor (3)
Primary
Secondary
Precipitous
Primary Power
abnormal contractions
Uterine dysfunction; does not completely relax
Secondary Power
Abnormal fetal descent; more common one
Precipitous Power
Labor that is less than 3 hours
hypertonic contractions
Fetal Station
Station 0 is at ischial spine, just ready to surface
Primary Power Tx
analgesics; help the pt relax
Secondary Power Tx
ultrasound to determine the position of fetus
Pelvic Dystocia causes
- congenital abnormalities
- maternal malnutrition
- neoplasms
- spinal disorders
Soft Tissue Dystocia (tumor of placenta previa)
obstruction in birth passage
Fetus Anomalies
- tumors
- neural tube defects
- hydrocephalus
Malposition
25% in ROP or LOP
Most Common Malpresentation
Breech is most common
But also: frank breech, and complete breech
External Version of Uterus
moving the fetus from breech to head down (vertex) from the outside.
**give a tocolytic if needed to relax the uterus