The primary reason the patient came to the ED, which may differ from the initial information given to the nurse, is called the...

• A. Plan
• B. Differential Diagnoses
• C. FMHx
• D. Chief Complaint

Answer: (D)

The main concept being tested is the chief complaint—the patient's own stated reason for coming to the ED. The chief complaint is typically a brief phrase in the patient’s words that triggers the visit and guides the initial history and assessment. It may differ from what the nurse records at triage because the nurse’s intake data can reflect observations or rephrasing, while the chief complaint is the patient’s primary, subjective reason for seeking care. This distinction matters because the chief complaint focuses the clinician on the patient’s primary concern, which then shapes the History of Present Illness and subsequent evaluation. The other terms refer to different parts of the care process: a plan is what the provider intends to do, differential diagnoses are the possible conditions being considered, and FMHx is family medical history.