This is a silly question I thought of in mass the other day. Say after receiving the host, the recipient chokes to death on it. Seeing as the pieces of bread are pretty small, an alternate scenario could be choking resulting in a coughing fit that dislodges a blood clot that causes a brain aneurysm leading to nigh-instant death.
I don’t think such a death would be a free pass to the pearly gates. While one is supposed to be in a state free of mortal sin when having the Eucharist, the Eucharist itself doesn’t have any reconciliatory properties that I’m aware of. Still, it seems like dying soon after receiving what is in this context the body and blood of Christ that it must have some sort of effect on one’s salvation.
So, the three options I see are 1) no effect on salvation, 2) a mild to major positive effect or 3)Go directly to Heaven. Do not pass go. Do not collect $200.