BLOOD PRESSURE by 8k75m1

VIEWS: 23 PAGES: 19

									BLOOD PRESSURE
          OBJECTIVES
• DEFINE BLOOD PRESSURE
  – SYSTOLIC AND DIASTOLIC
• NORMAL RANGE OF B/P
  – SYSTOLIC AND DIASTOLIC
• SIZE AND PLACEMENT OF B/P CUFF
     BLOOD PRESSURE
• MEASUREMENT OF THE PRESSURE
  THAT THE BLOOD EXERTS ON THE
  WALLS OF THE ARTERIES DURING
  THE VARIOUS STAGES OF HEART
  ACTIVITY.
 – AS THE HEART CONTRACTS OR
   RELAXES
    SYSTOLIC PRESSURE
• PRESSURE THAT OCCURS IN WALLS
  OF ARTERIES WHEN THE HEART IS
  CONTRACTING AND PUSHING
  BLOOD INTO ARTERIES
   DIASTOLIC PRESSURE
• CONSTANT PRESSURE THAT IS IN
  THE WALLS OF THE ARTERIES WHEN
  THE HEART IS AT REST OR BETWEEN
  CONTRACTIONS.
BLOOD PRESSURE

    NORMAL RANGE
   SYSTOLIC PRESSURE
• NORMAL RANGE

 – 100 TO 140 MM MERCURY
   DIASTOLIC PRESSURE
• NORMAL RANGE

 – 60 TO 90 MM MERCURY
          Factors influencing
        Blood Pressure readings
•   Force of the Heartbeat
•   Resistance of the arterial system
•   Elasticity of the arteries
•   Volume of blood in the arteries
      Increase Blood Pressure
• Excitement, anxiety, nervous tension
• Stimulant drugs
• Exercise and eating
     Decrease Blood Pressure
• Rest and sleep
• Depressant drugs
• Excessive loss of blood
 Factors that affect B/P readings
• Lying down (usually lower B/P)
• Sitting position
• Standing position (usually higher B/P)
             Recording B/P
• Systolic reading is top number
• Diastolic is bottom number

• Example
  – 120/80
            Types of
       sphygmomanometers
• Mercury
• Aneroid
  Mercury sphygmomanometer
• contains a long column of mercury
• each line on gauge represents 2 mm of
  mercury
• place on a flat level surface or mounted on
  the wall
• level of mercury should be at 0
   Aneroid sphygmomanometer
• Round gauge
• Each line on gauge represents 2 mm of
  mercury pressure
  Factors to follow for accurate
             readings
• American Heart Association
  recommendations
  – Patient should sit quietly for at least 5 minutes
    before the B/P is taken
  – Two separate readings should be taken and
    averaged
  – Minimum wait of 30 seconds between readings
         PROPER SIZE
• B/P CUFFS SHOULD BE THE SAME
  DIAMETER AS OF THE PATIENTS
  ARM
         PROPER SIZE
• SMALL CUFFS RESULTS IN FALSELY
  HIGH READINGS

• LARGE CUFF MAY CAUSE FALSELY
  LOW READINGS

								
To top