Psychiatric Mental Health Nursing 8th Edition by Mary Townsend

Exercise 2

Sara, a 23-year-old single woman, has just been admitted to the psychiatric unit by her parents. They explain that over the past few months she has become more and more withdrawn. She stays in her room alone, but lately has been heard talking and laughing to herself.
Sara left home for the first time at age 18 to attend college. She performed well during her first semester, but when she returned after Christmas, she began to accuse her roommate of stealing her possessions. She started writing to her parents that her roommate wanted to kill her and that her roommate was turning everyone against her. She said she feared for her life. She started missing classes and stayed in her bed most of the time. Sometimes she locked herself in her closet. Her parents took her home, and she was hospitalized and diagnosed with schizophrenia. She has since been maintained on antipsychotic medication while taking a few classes at the local community college.
Sara tells the admitting nurse that she quit taking her medication 4 weeks ago because the pharmacist who fills the prescriptions is plotting to have her killed. She believes he is trying to poison her. She says she got this information from a television message. As Sara speaks, the nurse notices that she sometimes stops in midsentence and listens; sometimes she cocks her head to the side and moves her lips as though she is talking.
Answer the following question related to Sara:
What is the nursing diagnosis related to this concern?