Hello. We use Insure on ELBW children. And we extubate them just after putting surfactant into lungs. We wait a little bit untis surf. is absorbed (by stetoscope). But it takes just little of time. If baby is breathing, extubate and put nCPAP. It all takes maybe 5 min.
We check every preeterm baby, starting 21st day of life, and do this every 2 weeks. P/ Ca in blood and in urine, level of wit.D3, Parathormon, Alkaline Phosphatase. We don't use rtg to diagnose it