Question: what are the key red flag signs and symptoms of high bp?
Answer: Red flag findings suggestive or target organ injury (Hypertensive Emergency or urgency) Contrast with the mild symptoms of Severe Asymptomatic Hypertension.
Cardiopulmonary Symptoms. Chest Pain. Shortness of Breath. ... 
Neurologic Symptoms. Severe Headache. ... 
Renal Symptoms. Oliguria or Anuria.