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32 to 34 weeks gestation

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

  • this is the time at which lung becomes fully mature
  • these babies require temperature regulation and glucose, and they may require ventilation - CPAP
  • best managed in the special care baby unit
  • in the past amniocentesis was performed, from which the lecthin/sphingomycin ratio was measured - this is more rarely done these days but it does give a clearer idea of the maturity of the lungs
  • lung maturity at this stage is borderline; maternal steroid therapy will promote normal surfactant production

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