Polly the op Mum is able to drink.
Fluids are not withdrawn until the person is unable to drink and also undistressed by the lack of fluids. Its a standard part of the pathway though that fluids will not be artificially given unless the patient is distressed by their lack and its the thing that causes the most misunderstanding since as a healthy alert individual its pretty impossible to understand how not being given fluids is anything other than distressing.
In the context of a dying patient, as has been explained several times, this is categorically not the case.
It is also never the case that patients who are lucid and asking for a drink are not given it.
It is not uncommon for patients to have moments of being very lucid until very close to the end. In fact I was looking after a patient recently with end stage cancer who I had very detailed chats regarding his wishes with at about lunchtime, he then had lovely visits with his wife and 2 teenaged children but was dead by early evening :(. He was put on the lcp but actually never needed most of the measures on it because in the end everything was so quick.
But although it is usually clear when someone is dying it is very difficult if not impossible to determine how long that will take and what symptoms will need to be managed. Having the lcp in place means that whenever a patient develops a new distressing symptom it can be managed immediately rather than having to wait for a doctor to review, which can take a while depending on what else is going on.
And has also been mentioned, if the patient improves they can be taken off the pathway as it is regularly reviewed.
Nothing is perfect, and a small number of patients may not benefit from being on the pathway. However I have seen many more patients with pain free, dignified, comfortable deaths on the Lcp than I ever saw before.