Archie’s diabetes insipidus is really bad as well. Presumably because there is absolutely no ADH hormone because his posterior pituitary gland is destroyed, along with the rest of his brain stem.
Older children who present with pituitary hormone depletions usually have some residual function, so their hormone tests don’t show zero levels, just low levels. They’re still called X hormone deficient and still need replacement
In live children who have it it’s true that, before diagnosis, they drink crazy amounts and do things like wake in the night to gulp directly from the tap 😀Actual diagnosis requires bringing them in and deliberately depriving them of water and demonstrating that their urine remains inappropriately dilute.
However, even in hospital where he is receiving continuously iv fluids and replacement hormone Archie is still producing large enough urine volumes that his BP can drop suddenly to the extent that PICU has called an emergency call on a few occasions (as per one of the hearings).
It all sounds very unstable and I don’t think Hollie appreciates this at all.
Taking the tube out could be so gentle- he won’t even gasp, because that’s a brain stem response and he has none - and his heart would just slow then stop. As a pp said, this could be done with his family around him, Hollie cuddling him. Instead they want to watch him dehydrate to death (and/or arrest because of abnormal electrolytes).