An appropriate nursing diagnosis for the family of a client dying of cancer whose members have expressed sorrow over the forthcoming loss would be

Anticipatory Grieving related to the loss of a family member as evidenced by voicing sorrow and crying.

Potential for Grieving related to future loss of family member and sorrow as evidenced by crying and insomnia.

Dysfunctional Grieving related to loss of a family member as evidenced by behaviors indicating anxiety.

Dysfunctional Grieving related to future loss of family member as evidenced by family’s age regression.