Which data element is valid as part of a patient profile?

• A. Employment history
• B. Eye color
• C. Date of birth
• D. Favorite food

Answer: (C)

A patient profile relies on demographic identifiers that uniquely identify the patient and support safe care. The date of birth stands out as the valid data element because it is a stable, universal identifier used across systems to confirm identity, determine age for dosing and age-based screenings, and distinguish between individuals with similar names.

Employment history is typically part of social history and not a core profile field needed for identification or routine care. Eye color might be recorded in some contexts, but it is not a reliable or commonly used identifier for medical purposes. Favorite food has no relevance to medical care and is not part of standard patient identification.

So, the date of birth is the essential data element for a patient profile among these options.