Which statement would be appropriate to document under the review of systems?

The selection of the statement about the patient's nausea and vomiting is appropriate for documentation under the review of systems because this section is designed to capture the patient's current health status and any symptoms they are experiencing across various bodily systems. In this case, the reported symptoms of nausea and vomiting provide valuable information regarding the gastrointestinal system and help in assessing the patient's condition.

Documenting specific symptoms like these is essential as it gives context to the patient's health status, aids in identifying potential concerns, and guides further evaluation and management. The information reflects the patient's subjective experience, which is crucial for a holistic assessment.

Other statements, while relevant in their own contexts, do not fit within the review of systems criteria. Employment status, such as being an attorney, pertains more to the patient's social history rather than their medical or symptomatic status. The comment regarding the reliability of the patient as a source of information touches upon aspects of the patient's history and evaluation but does not provide insights into the current health status being assessed. Finally, a physical examination finding, like the tenderness of the abdomen, belongs to the physical examination section rather than the review of systems, as it represents objective data rather than subjective symptomatology.