... -downloading or opening another known good PDF) or it could be ... one with a bunch of good reviews that doesn't ask ... should do the trick. Goodluck!
Losing a family member is not something that is easy to distract yourself from. If you still feel distracted as test day approaches (which would be understandable), you might want to consider postponing. Goodluck in the healing process.
Retake the test that you're not satisfied with. It's like "fool proof" the whole test. But I think it not only boosts your confidence but also makes all the stuff in the test sink up your head. Goodluck!