Normal labour/ delivery 1B Flashcards
definition?
onset of regular and painful contractions associated with cervical dilation and descent of thepresenting part
• Signs of labour =
Regular and painful uterine contractions
“Bloody show” = shedding of mucous plug
Rupture of the membrane (not always)
Dilation and shortening of the cervix
• Stages of labour =
Stage 1 = from the onset of true labour to when the cervix is fully dilated
Stage 2 = from full dilation to the delivery of the foetus
Stage 3 = from delivery of the foetus to when the placenta and the membranes have been completely delivered
what is involved in the monitoring during labour
FHR = 15mins or continuously via CTG
Contractions= 30mins
Maternal Pulse rate = 60 mins
Maternal Bp and temp = 4hrs
VE (vaginal examination) = 4 hours to monitor progression of labour
Maternal urine = 4hrs (ketone and protein)
during monitoring poor progress is suggested by
<2cm dilation in 4hrs
what are the 3ps that cause poor progress
Power: uterine weakness
Passenger – size, position or presentation of the baby
Passage = pelvic problem
what is done in the 4 hourly VE
feel fontanelles & sutures of skull, cervical effacement & dilation, head station and a palpable cord = cord prolapse
what happens in the 3rd stage of labour
physiologically placenta may be expelled 10mins to 1hr (**remember it carries risk of PPH)
what may be given to help expel the placenta
• Oxytocin or synometrine IM may be given at the anterior shoulder
Signs of foetal distress during intrapartum monitoring
Abnormalities on intermittent auscultation
Meconium in liquor which can lead to neonatal pneumonitis
Significant moulding = overlapping of skull bones
what is CTG
cardiotocography
what is the mnemonic for the review of CTG
• DR C BRAVADO
Define risk = ↑or↓ risk pregnancy
Contractions= regular contractions suggest labour = e.g. 4 in 10
Baseline rate = normal = 110-160bpm, <100 or >180 is abnormal
Variability =
Normal & reassuring = 5-25bpm for 30-50mins
Non-reassuring = <5 for 50mins
Abnormal is >5 for >50mins or >25 for >25mins
Accelerations= should be occasional ↑ in FHR in response to its environment
Declarations
Early deceleration + in time with contractions = normal
Late deceleration = 20-30 seconds after contraction = hypoxia
Variable deceleration = cord compression
Overall impression