Final answer:
A nauseated patient with fever and abdominal pain who has not vomited should be documented as a pertinent negative, which is crucial for medical assessment.
Step-by-step explanation:
The statement that a nauseated patient with fever and abdominal pain has not vomited should be documented as a pertinent negative. Pertinent negatives are essential components of a patient's medical history and physical examination because they detail symptoms that are not present but are significant in the assessment and differential diagnosis of the condition. These findings help healthcare professionals to rule out certain diagnoses and support others.