Final answer:
The nurse should document a liver span of 11 centimeters as a normal finding in the medical record during an abdominal assessment.
Step-by-step explanation:
When recording the findings of an abdominal assessment, the nurse should note the liver span of approximately 11 centimeters as a normal finding. The average liver span in a healthy adult typically ranges from about 6 to 12 centimeters, depending on the individual's size and body type. Documenting this measurement is critical for medical record accuracy to reflect the patient's current health status.