In reply to Arrow.

No it's not. St. Paul explicitly states that receiving unworthily brings condemnation on one's self, and Christians through the centuries have been careful about the state of sin before receiving Holy Communion. There is a reason that the liturgy historically was broken into one part for catechumens, who were dismissed before the liturgy of the Eucharist began. They weren't yet members of the body of Christ, and as such could not receive absolution in Confession and therefore be cleansed prior to receiving.