Question 283 · LEK · Abnormal head presentation
The main features of labour in occipito-posterior position are:
- A. the denominator - the area of the posterior fontanelle, the engaging diameter-suboccipito-bregmatic, the contact point - the suboccipital area.
- B. the denominator - the area of the posterior fontanelle, the engaging diameter - suboccipito-bregmatic, the contact point - the area of the anterior fontanelle.
- C. the denominator - the forehead, the engaging diameter - mento-bregmatic, the contact point - the upper jaw.
- D. the denominator - the upper jaw, the engaging diameter - trachelobregmatic, the contact point - the chin.
- E. the denominator - the anterior fontanelle, the engaging diameter - occipito-frontal, the contact point - the forehead.
Hint
Recall which region leads in a flexed vertex and around which parts of the head it pivots under the symphysis and over the perineum.
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