A woman with suspected obstructed labour has not passed urine for several hours. The presenting part is...

A woman with suspected obstructed labour has not passed urine for several hours. The presenting part is deeply impacted in the pelvis. Which explanation best accounts for the urinary problem?
- Increased renal filtration during labour
- Pressure from the presenting part and possible bladder dysfunction
- Excessive milk production
- Reduced fetal movement
Which of the following is an appropriate indication for augmentation after assessment?
- Established labour with inadequate uterine contractions and slow progress
- Suspected cephalopelvic disproportion
- Suspected uterine rupture
- Persistent fetal compromise requiring urgent delivery