Hello Ukwildcat2, thanks for participating in our event today. I'm so sorry for your loss. And you are wonderful for taking good care of your grandmother.
If a dependent passes away during the tax year, they can still be claimed as a dependent for the entire year, assuming that they meet all the other qualifications. In this case, your grandmother would be considered a 'qualifying relative who does not have to live with you' so the only requirements would be that she had less than $4300 income and you provided more than half of her support.
I hope that helps.
