One kidney

So we came to the hospital on Monday with a bad cold and now we just found out Ava has one kidney and three kidney stones. She had two kidneys when she was born but when she was in the NICU she had a iv in her tummy and they say that could of caused the one kidney to die. It is now a pea size. The other kidney is good but has three kidney stones on it. Two are very small, but there is one that is 5mm. Which is huge to a premmie baby. That is why Ava has been so fussy. Poor Thing. So now they need to do surgery.