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Operational Obstetrics & Gynecology

Labor and Delivery

Watch a Video Showing a Normal Delivery or Cesarean Section

Labor	Contractions	Electronic Fetal Monitors
Latent Phase Labor	Fetal Heart Rate	Pain Relief
Active Phase Labor	Urine	Second Stage Labor
Progress of Labor	Estimated Fetal Weight	Preparing for Delivery
Delivery of the Baby	Dilatation and Effacement	Managing the Delivery
Delivery of the Placenta	Fetal Orientation	Episiotomy
Managing Labor and Delivery	Leopold's Maneuvers	Anesthesia
Initial Evaluation	Fetal Membranes	Clamp the Cord
History	Blood Count	The Placenta
Risk Factors	Early Labor	Uterine Massage
Vital Signs	Monitor the Fetal Heart	Post Partum Care

Monitor the Fetal Heart

Prior to active labor, the fetal heart rate for low risk patients is usually evaluated every hour or two.

Once active labor begins for these women (4 cm dilated, with regular, frequent contractions), the fetal heart rate is evaluated every 30 minutes. This can be done by looking at the electronic fetal monitor (if used), or by measuring the fetal heart rate following a contraction. Fetal jeopardy is likely if the auscultated fetal heart rate is less than 100 BPM, even if it later rises back to the normal range of 120-160. Persistent fetal tachycardia (greater than 160 BPM) is also of concern.

For women with significantly increased risks, it is better to evaluate the fetal heart rate every 15 minutes during the active phase of labor.

Women in the second stage of labor (completely dilated but not yet delivered) usually have their fetal heart rate evaluated every 5 minutes until delivery.

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Operational Obstetrics & Gynecology - 2nd Edition
The Health Care of Women in Military Settings
CAPT Michael John Hughey, MC, USNR
NAVMEDPUB 6300-2C
January 1, 2000

This web version of Operational Obstetrics & Gynecology is provided by The Brookside Associates Medical Education Division. It contains original contents from the official US Navy NAVMEDPUB 6300-2C, but has been reformatted for web access and includes advertising and links that were not present in the original version. This web version has not been approved by the Department of the Navy or the Department of Defense. The presence of any advertising on these pages does not constitute an endorsement of that product or service by either the Department of Defense or the Brookside Associates. The Brookside Associates is a private organization, not affiliated with the United States Department of Defense. All material in this version is unclassified.

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