For a patient admitted to Same Day Surgery at 11 AM and discharged at 11 PM, what is the length of stay?

The correct answer reflects the total duration of the patient's stay within the Same Day Surgery unit. Length of stay is typically calculated based on the time from admission to discharge, regardless of whether the stay spans over midnight or crosses into another day.

In this case, the patient was admitted at 11 AM and discharged at 11 PM. From 11 AM to 11 PM, the total duration is exactly 12 hours, which is why the answer is 12 hours. The calculation does not include additional time before or after the discharge since it strictly measures the time spent receiving care in the facility from the point of admission to the point of discharge.

Therefore, this choice accurately captures the length of time the patient spent in the facility, which is a crucial factor in health information management when calculating various metrics related to patient care and operational efficiency.