Examination of the Female Pelvis

Question 0

Distance along the cavity from the sacral promontory to the tip of the sacrum

Answer 0

12 cm

Question 1

Length of the sacral promontory to the tip of the sacrum

Answer 1

10 cm

Question 2

Onset of pubic symphysis relaxation

Answer 2

first half of pregnancy

Question 3

Peak of pubic symphysis relaxation

Answer 3

last 3 months

Question 4

Ligaments comprising the arcuate ligament

Answer 4

superior and inferior pubic ligaments

Question 5

By how much does the dorsal lithotomy position increase the pelvic diameter during labor?

Answer 5

1.5-2 cm

Question 6

The name of the position used in aiding shoulder delivery

Answer 6

McRoberts Position

Question 7

Name of the position to hasten the 2nd stage of labor by increasing the interspinous diameter and increasing the diameter of the pelvic outlet

Answer 7

Modified Squatting Position

Question 8

Four planes of the pelvis

Answer 8

Superior Strait/ Inlet
Midpelvis
Outlet/ Inferior Strait
Plane of Greatest Pelvic Dimension

Question 9

Normal value for the obstetric conjugate

Answer 9

10 cm

Question 10

Normal value for diagonal conjugate

Answer 10

12 cm

Question 11

Normal value for true conjugate

Answer 11

11 cm

Question 12

Normal value for the transverse diameter

Answer 12

13.5 cm

Question 13

Normal value for the oblique diameter

Answer 13

<13 cm

Question 14

AP diameter at the level of the ischial spines

Answer 14

11.5 cm

Question 15

Normal value for the post. sagittal diameter of the midpelvis

Answer 15

4 cm

Question 16

Normal value for the AP diameter of the Outlet

Answer 16

11 cm

Question 17

Normal value for the Intertuberous diameter of the outlet

Answer 17

11 cm

Question 18

Normal value for the Post. Sagittal diameter of the outlet

Answer 18

7.5 cm

Question 19

Thoms Rule

Answer 19

Post. Sagittal diameter + Transverse diameter > 15

Question 20

When may the descent of fetal biparietal diameter/plane to the level below pelvic inlet occur in nulliparas?

Answer 20

During the last few weeks if pregnancy

Question 21

Distance from plane of the pelvic inlet to the level of the ischial spines

Answer 21

approx. 5 cm

Question 22

Distance of the biparietal plane of the unmolded fetal head to the vertex?

Answer 22

3-4 cm

Question 23

What do you check for when estimating the mid-pelvis?

Answer 23

Prominence of ischial spines
Sidewalls (convergence)
Sacrum concavity (deep/shallow)
Sacrosciatic notch

Question 24

normal value for bituberous outlet

Answer 24

8 cm or greater

Question 25

Classification of pelvises based on greatest transverse diameter of inlet and its division into AP segments

Answer 25

Caldwell-Moloy

Question 26

Segment defining the type of pelvis

Answer 26

post. segment

Question 27

Segment defining the tendency of the pelvis

Answer 27

ant. segment

Question 28

Kinds of tendencies of the pelvis

Answer 28

gynecoid, platypelloid, android, anthropoid

Question 29

Most common type of pelvic tendency

Answer 29

gynecoid

Question 30

Which pelvic tendency allows for fetal occiput to rotate anteriorly without difficulty?

Answer 30

gynecoid

Question 31

Pelvic tendency allowing for fetal occiput to rotate away from symphysis

Answer 31

anthropoid

Question 32

What position and configuration of the sacrum allows the head to traverse the entire pelvis in posterior position?

Answer 32

Post. at all levels

Question 33

If the position and configuration of the sacrum is anterior, where will the fetal occiput rotate?

Answer 33

anterior

Question 34

If the position and configuration of the sacrum is forward, where will the fetal occiput descend?

Answer 34

transverse position in descent