The ultimate sacrifice for believing JW parents is to save their child's life by any means necessary and then be ready and willing to accept the consequences....... being shunned for a year or two is most certainly worth the trade off. However leaving the JW's is the better course.
We left the JW'S back in the mid 1960's after coming to the realization that my wife and I would not honor the Blood doctrine invented by the WT...... having come to that realization......... there was nothing left to do but leave.
The WT made up this doctrine so they could be........different. Apparently it was as much a P.R. stunt as a belief (let's not forget other 'beliefs' like no vaccines and no transplants).
In later years Jonestown put a face on what callous and murderous indifference looked like the morning after.....for any lurking witnesses out there do yourself and your family a favor and google Jonestown . Jonestown happened one time in the JW world at least that amount of people close to 1000 JW, die every year for want of a transfusion.
Instead of following the WT's idea why not follow what Jesus said about blood.....look it up.
And while you are thinking this over haul out your No blood directive and ask yourself why you and your family are walking around with a suicide note in your pocket.