4 Right occiput anterior (ROA).
5. Right occiput posterior (ROP).
6 Right occiput transverse (ROT).
(c) A transverse position does not use a first letter and is not the same
as a transverse lie or presentation.
1 Occiput at sacrum (O.S.) or occiput at posterior (O.P.).
2 Occiput at pubis (O.P.) or occiput at anterior (O.A.).
Types of breech presentations (see figure10-4).
(a) Complete or full breech. This involves flexion of the fetus legs. It
looks like the fetus is sitting in a tailor fashion. The buttocks and feet appear at the
vaginal opening almost simultaneously.
Figure 10-4. Breech positions.
(b) Frank and single breech. The fetus thighs are flexed on his
abdomen. His legs are against his trunk and feet are in his face (foot-in-mouth posture).
This is the most common and easiest breech presentation to deliver.
(c) Incomplete breech. The fetus feet or knees will appear first. His
feet are labeled single or double footing, depending on whether 1 or 2 feet appear first.
Observations about positions (see figure 10-5).
(a) LOA and ROA positions are the most common and permit relatively