Hello I am deepak My uncle he has large staghorn calculus and after dtpa scan he has been told his lt kidney was not functioning and docs said to do nephrectomy During pre operation check up he has been told to do nearly 10 tests n due to timing mismatch its been 2 months hes still trying to complete his tests. I want to know will there b any issues on delaying the operation. As he looks normal bt do not know the later form of his health.