Back in the hospital

Jack's oxygen saturation dropped to the low 60's on sunday so we had to bring him in to Albany Med. He recovered back to the 70's where he normally is. The doctors aren't sure why this is happening to him (this is the second time he desatted). A cardiac cath procedure is scheduled for tomorrow around noon and hopefully we'll be able to understand what is going on inside him!  He might need the second surgery sooner than expected. Prayers are appreciated.
~Rebekah & Josh