Potential evapotranspiration (PET) is the amount of water that would be evaporated and transpired if there were sufficient water available. This demand incorporates the energy available for evaporation and the ability of the lower atmosphere to transport evaporated moisture away from the land surface.
In many cases of hospital births where the baby has passed meconium before birth, a special NICU team will be called when the baby is delivered in case there was ingestion of the meconium into the babyâs lungs. If a newborn does swallow some meconium it can lead to Meconium aspiration syndrome (MAS).
The presence of meconium in the amniotic fluid shows that the baby may have been in distress. The lightly stained fluid (usually yellow) indicates that the distress occurred some time in the past. It takes about 4 to 6 hours for the placenta and the baby to become meconium stained after meconium has been passed.