Understanding Blood Pressure

Blood pressure or Bp is a measurement of the force exerted by the blood against the blood vessel walls. This is most accurately measured with a blood pressure cuff and a stethascope. Bp is read as afraction, with a numberator being the systolic pressure, (during the heart’s contraction) and the denominator being diastolic (during the heart’s relaxation stage).

Normal Bp is 120/80 or 90-140/60-90 ranges are all considered ‘normal.’

Low Bp occurs when the pressure is below htese normal limits. This is usually not dangerous, except in extreme circustances, such as shock, blood loss, and blood volumn loss as with dehydration.

High Bp is usally more dangerous thanlow