Blood pressure refers to the pressure of the blood pumping through the arteries produced by contractions of the heart. According to the Mayo Clinic, low blood pressure, or hypotension, occurs when the brain does not receive enough blood. It is usually caused by an underlying disease, medications being taken, pregnancy, an infection, or lack of nutrition. Common symptoms of low blood pressure are dizziness, fatigue, nausea, fainting, dehydration, blurred vision, pale skin, and mild depression.
In most cases, screening results revealing low blood pressure do not affect many dental procedures. In the case of significantly low screenings, we may ask the patient to drink water and a sweet beverage or fruit to raise their blood pressure or reschedule for another visit. Low blood pressure is only alarming if a patient is experiencing dizziness or fatigue as local anesthesia and drilling can add too much stress and lead to variable results.