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Cervical Examination in Labor
Aka: Cervical Examination in Labor, Uterine Cervical Length
- Technique: Mnemonic: 5C's
- Clean (Sterile technique)
- Catheterize or empty Bladder before examination
- Cervical evaluation (See Bishop Score)
- Cervical Dilation
- Cervical Effacement
- Caput forming?
- Cord
- Indicated by pulsations behind membranes
- Evaluation: (Mnemonic 5P's)
- Presentation
- See Fetal Presentation
- Position
- See Fetal Position
- Place (Station)
- See Bishop Score
- Pelvis
- See Pelvimetry
- Puncture (Assess for Rupture of Membranes)
- Interpretation: Cervical Length based on Transvaginal Ultrasound and prediction of preterm delivery before 35 weeks
- Cervical Length <2 cm
- Week 24: Positive Predictive Value 25%
- Week 28: Positive Predictive Value 16.7%
- Cervical Length <2.5 cm
- Week 24: Positive Predictive Value 17.8%
- Week 28: Positive Predictive Value 11.3%
- Cervical Length <3 cm
- Week 24: Positive Predictive Value 9.3%
- Week 28: Positive Predictive Value 7.0%
- References
- Iams (1996) N Engl J Med 334(9): 567-72 [PubMed]
- References
- Gordon (1995) Obstetrics and Gynecology, Scrub, p. 17