Final answer:
An appropriately written nursing diagnosis is a statement that describes a client's health problem and its related cause. The example of an appropriately written nursing diagnosis is 'Diarrhea related to food intolerance.'
Step-by-step explanation:
An appropriately written nursing diagnosis is a statement that describes a client's actual or potential health problem that a nurse is qualified to treat. Out of the given options, the example of an appropriately written nursing diagnosis is:
1. Diarrhea related to food intolerance.
This nursing diagnosis identifies the problem (diarrhea) and its related cause (food intolerance). This statement provides a clear understanding of the client's health problem and allows the nurse to plan appropriate interventions.