Uterine abdominal cervical assessment Flashcards
Lie
- Relationship of fetal spine to maternal spine
- Longitudinal, transverse, oblique
Presentation
Part of fetus presenting at the pelvic inlet
- 96% cephalic
a. vertex
b. sinciput (median vertex)
c. brow
d. face - 3-4% breech
a. complete
b. incomplete
c. frank
d. footling - shoulder presentation
Attitude
- Relationship of fetal parts to one another and the effect that relationship has on the vertebral column
- Flexion or extension of fetal parts
Position
Variety
Position - Relationship of the presenting part to the left or right side of the maternal pelvis
Variety - Relationship of the presenting part to the anterior, posterior, or transverse portion of the pelvis
- LOA, ROA, LOP, ROP
Leopold Maneuvers
Step 1: Determine Lie
Step 2: Determine orientation (where is fetal back?)
Step 3: Presentation and engagement
Step 4: Variety, flexion and engagement
Chadwick’s sign
Bluish discoloration of cervix, vagina, labia d/t increased blood flow, can be observed as early as 6-8 weeks after conception
Goodell’s sign
Indication of pregnancy - softening of vaginal portion of cervix from increased vascularization
Hegar’s sign
- Softening of lower uterine segment above cervix
- Onset approx 6 weeks EGA
Pelvic Outlet (bituberous diameter)
2 triangular planes with a common base (like a 2D diamond with a fold in it), symphysis pubis to B/L ischial tuberosities, then second triangle is along the transverse line from tuberosities to the lowermost part of the sacrum (sacrococcygeal joint); determine size by assessing the pubic arch and intertuberous diameter (11cm)
AP diameter of outlet ~9.5-11cm
Diagonal conjugate
11.5cm-12.5
Transverse of inlet
13.5cm
Interspinous (transverse between ischial spines)
10cm
-assess if there is room midpelvis
Obstetrical conjugate
10.5cm
Gynecoid pelvis
round, wide opening at inlet. most favorable for childbirth
-can fit 3 fingers for assessment of pubic arch
Android pelvis
Heart shaped at inlet. Tailbone and ischial spines point in toward pelvic space, difficult to let babies out
-can fit 2 fingers, sharp pubic arch