Cardiology Examination 3: Blood pressure

  • Position the patient's arm so the anticubital fold is level with the heart
  • Center the bladder of the cuff over the brachial artery approximately 2 cm above the anticubital fold.
    Proper cuff size is essential
    to obtain an accurate reading. Be sure the index line falls between the size marks when you apply the cuff. Position the patient's arm so it is slightly flexed at the elbow
  • Palpate the radial pulse and inflate the cuff until the pulse disappears.
    This is a rough estimate of the systolic pressure
  • Place the stetescope over the brachial artery. Use the Diaphragm.
    Even though Korotkoff sounds are low frequency and should be heard better with the bell, it is often difficult to apply the bell properly to the anticubital fold. For this reason, it is common practice to use the diaphragm when taking the blood pressure
  • Inflate the cuff to 30 mmHg above the estimated systolic pressure
  • Release the pressure slowly, no greater than 5 mmHg per second
  • The level at which you consistantly hear beats is the systolic pressure.
    In situations where ausculation is not possible, you can determine systolic blood pressure by palpation alone. Deflate the cuff until you feel the radial or brachial pulse return.
    The pressure by auscultation would be approximately 10 mmHg higher.
    Record the pressure indicating it was taken by palpation (60/palp)
  • Continue to lower the pressure until the sounds muffle and disappear. This is the diastolic pressure
  • Record the blood pressure as systolic over diastolic (120/70)
  • Blood pressure should be taken in both arms on the first encount
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