Last Rites is often confused with Anointing of the Sick
While the two are not the same, Last Rites does include the Sacrament of Anointing of the Sick. Last Rites refers to the Catholic ritual that occurs as a man or woman nears the end of his or her life. Last Rites includes the Sacraments of Confession, Eucharist, and Anointing of the Sick, and some special prayers and blessings.
VIATICUM, THE LAST SACRAMENT OF THE CHRISTIAN
In addition to the Anointing of the Sick, the Church offers those who are about to leave this life the Eucharist as viaticum. Communion in the body and blood of Christ, received at this moment of “passing over” to the Father, has a particular significance and importance. It is the seed of eternal life and the power of resurrection, according to the words of the Lord: “He who eats my flesh and drinks my blood has eternal life, and I will raise him up at the last day.”
“Just as the sacraments of Baptism, Confirmation, and the Eucharist form a unity called “the sacraments of Christian initiation,” so too it can be said that Penance (Confession), the Anointing of the Sick and the Eucharist as viaticum constitute at the end of Christian life “the sacraments that prepare for our heavenly homeland” or the sacraments that complete the earthly pilgrimage.” — the Catechism of the Catholic Church, 1525
Please call for a priest as soon as one begins to be in danger of death from sickness or old age.