Section I: Read Chapter 10 in the Midwifery Workbook

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Section I: Read Chapter 10 in the Midwifery Workbook and complete the following:

  1. List the 4 factors that influence the outcome of labor and, in your own words, explain why they influence labor. In your opinion, which factor has the most influence and why?

The passage: the mother’s body shape, her pelvic size, the muscle structure will affecthow long the labor is and how pain she might be have.

The passenger: how many weeks of the fetal(gestational age), fetus’s position and size will affect the length of labor.

The powers: the uterus contraction and cervix dilation. The mother’s health will affect how her body works during labor.

The psyche: The mother’s emotions. Fear and unsecurity will cut the hormone of contraction. But feel safe and calm helps mother’s body keep doing their work.

I think the power is the most influence. Because the healthy mom her body can function well. Good contraction and cervix dilation will make the baby out more easily.

2. Complete the exercise on page 256.

3. How many bones make up the fetal skull?

4. List the 4 sutures of the fetal skull and their location.

Frontal suture: lies between the two frontal bones and extends anteriorly from the sagittal suture.

Coronal suture: extens transversely from the anterior fontanelle and lies between the parietal and frontal bones, crossing one temple to another.

Lambdoid suture: extends transversely from the posterior fontanelle and separates the occipital bone from the two parietal bones.

Sagittal suture: lies between the two parietal bones ad divide the skull into left and right halves.

5. Define fontanelle.

Fontanelle are where two or more sutures meet
6. Which 2 fontanelles are most relevant to birth?

Anterior fontanelle and posterior fontanelle

7. Review p. 260 and be familiar with fetal position.
8. Explain floating, dipping and fully engaged as it relates to station.

Floating: if the fetus’s head is entirely out of the pelvis. It is -5 station.

Dipping: the fetus’s head is part passes through the pelvic inlet but not engaged.

Fully engaged: when the widest portion of the presenting part is at or below the level of the ischial spines(0 station), it is considered fully engaged.

9. Define asynclitism.

When the fetal head enters pelvic, but it is not parallel, it is called asynclitism.

10. Without referring back to the pages on pelvis types, complete the Pelvic Type exercise on p. 262.

11. Complete the Physiology of Labor Exercise on p. 266.

12. Define prodromal labor.

Prodromal labor is the period of time just prior to labor.

13. Complete the Labor Stage exercise on p. 268.

14. Review and be familiar with the partograph.
15. What are the three phases of the contractions?
Acme, Increment, Decrement

16. Complete the Psychological Aspects of Labor exercise on p. 277.

1. fear, anxiety, intension, anger, rejected, shame

2. it might stop woman’s body for dilation. The fear(or unsecurity can stop the hormone for opening cervix and contraction.

17. Complete the Intrapartum Care exercise on p. 293

1.blood pressure cuff, stethoscope, Doppler, gloves(normal and sterile), watch


1-5cm: every hour

5-7cm: every 30 mins

7-10cm:every 15 mins

during pushing: every contractions

3. every 4 hours

4. Ketones present in urine, or BP increased, tachycardia

5. checking baby position in active labor and after labor for delivery placenta

6. FHT is out of range for too long, meconium present

cord prolapse, baby’s position(OP)


active labor:less than 1.2cm/hr

no dilation for 2 hours

fetus descent: less tan 1 cm/hr or no descent for 1 hour.

8. every 4 hours if no potential complications are present.


10.contraction increasing in frequency and intensity, cervix has dilation(0-10 cm), baby engaged pelvis

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