No doubt Louise's family is going through a tough time as it is, and we can't even imagine the horrors of having to count down to one's final days. What a horrifying experience that must be!
However, Louise would have to tell her children, and the sooner she does, the better. The American Cancer Society states that kids often pick up on problems in their surroundings, and it is essential to be open and honest about what is happening to the children to ensure they continue to have faith in those around them.
Furthermore, being aware of what is going on can reduce anxiety, improve emotional control, and help adjust to change.