a guess

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Note added at 21 mins (2010-06-18 07:24:00 GMT)
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The particular safety improvement is related to potential risk for patient identification errors due to an increase in the number of patients with similar or same last names.
http://www.allbusiness.com/health-care-social-assistance/amb...

Joe Smith [not his real name], a 42-year-old man with nausea and vomiting for 4 days, was on the general medical service at an academic medical center. Overnight, another man with the last name Smith (Raymond Smith [not his real name]) was admitted to the same room. Usually, this coincidence would have been prevented, but the hospital had a bed shortage. Moreover, the admission occurred at 6:30AM, around the time the nursing shift changed, so that the outgoing staff did not notice that this patient was being placed in a room with another Mr. Smith.
http://www.webmm.ahrq.gov/case.aspx?caseID=1

prevention of distribution errors in a hospital room by erroneous reading/mixing patients' names

Assuming this is on a sign, I think this would be the best English

同室 - Same room, 入院の - Hospitalization 回避 - Avoidance

いま同様な文書の翻訳をしていますが、これは個々の患者を識別し、混乱をなくすためのいろいろな方法をいっているのですね。
そういうことがらの列記ですから簡潔な表現をと思い、これを提案します。