Final answer:
To complete the nursing diagnosis statement, one should include factors that are etiologically related to the risk for suffocation and details of possible signs and symptoms.
Step-by-step explanation:
The nursing diagnosis statement provided does indeed include important elements such as the problem (risk for suffocation), the cause (discard of refrigerators without doors), and the evidence (parental concern for safety). However, to make the statement more complete, it would benefit from an identification of etiologically related factors to the problem, which are specific conditions that increase the risk for suffocation in this scenario. Additionally, while 'parental concern for safety' is a manifestation, it would be more precise to include observable signs and symptoms characteristic of the problem if it were to occur, such as evidence of an infant attempting to crawl into the discarded appliance, or residing in an environment where such hazards are present. This added detail would provide a comprehensive view of potential dangers and how they might be presented or prevented.