OP Flashcards
Green
1
Q
What pelvic shape predisposes OP lie (and what percentage of mothers have this pelvis)?
A
Anthropoid
50%
2
Q
How can OP be diagnosed?
A
Palpation
On vaginal exam - Posterior fontanelle in posterior pelvic quadrant
3
Q
Do women with a baby in this orientation have a long or short labour? Why?
A
Long - greater degree of rotation required
4
Q
What medical considerations are important for OP labours?
A
Adequate hydration
Analgesia (consider epidural)
5
Q
What percentage rotate to
a) OA?
b) transverse?
c) posterior?
A
a) 65%
b) 20% that then arrest (deep transverse arrest)
c) 15% (birth by flexion of head from perineum)
6
Q
How many OP babies are birthed
a) Vaginally?
b) operatively (forceps)?
c) caesarean?
A
a) 73%
b) 22%
c) 5%
