Which symptom is considered a red flag for immediate referral to a medical officer?

Witnessed loss of consciousness is considered a red flag symptom that requires immediate referral to a medical officer due to the potential seriousness of the underlying condition. Loss of consciousness can indicate a variety of critical issues, including neurological conditions such as a concussion, seizure disorders, or cardiovascular problems like syncope. These conditions necessitate urgent evaluation to determine their cause and the appropriate treatment.

Other symptoms like lightheadedness, minor headache, and fatigue, while they may warrant further investigation, generally do not indicate an immediate medical emergency. They can stem from a range of less serious issues such as dehydration, stress, or sleep deprivation. However, witnessed loss of consciousness stands out because it raises immediate concerns regarding the individual’s neurological and cardiovascular health, making it imperative to seek prompt medical attention.