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  • 1. Lab Activity 26 Blood Pressure & Pulse Portland Community College BI 232
  • 2. Pulse Carotid Pulse Radial Pulse Brachial Pulse
  • 3. Pulse Dorsalis Pedis Pulse Posterior Tibial Pulse
  • 4. Blood Pressure Cuffs <ul><li>BP cuffs come in different sizes. </li></ul><ul><li>Be sure to choose the one that is appropriate for the patient </li></ul>Large Adult Infant
  • 5. Measuring Blood Pressure <ul><li>Most cuffs are marked with an O or an arrow. This should be placed near the artery. </li></ul>
  • 6. Measuring Blood Pressure <ul><li>Place the BP cuff snugly on the patient's arm. </li></ul><ul><li>Check to make sure you have found the artery. </li></ul><ul><li>Line the mark on the cuff up with the artery </li></ul>
  • 7. Measuring Blood Pressure <ul><li>Stethoscope: Note how the ear pieces slant slightly in one direction. </li></ul><ul><li>Make sure the ear pieces on the stethoscope are point away from you when you put them on. </li></ul><ul><li>Place stethoscope on the artery, tucked slightly under the cuff </li></ul>
  • 8. Measuring Blood Pressure <ul><li>The cuff should be placed at the level of the heart. </li></ul><ul><li>The patients arm (or leg) should be completely relaxed. </li></ul><ul><ul><li>Resting on the table or in their lab is helpful </li></ul></ul>WRONG TECHNIQUE CORRECT TECHNIQUE
  • 9. Inflate the Cuff <ul><li>A Grasp the bulb so that your thumb can easily access the valve. </li></ul><ul><li>Turn the valve to the right to tighten it and pump up the cuff, turn it to the left to loosen it and deflate the cuff. </li></ul>
  • 10. Measuring Blood Pressure <ul><li>Pump up the cuff until the sphygmomanometer reads 180 to 200. </li></ul><ul><li>Loosen the valve to let a little of the air out. </li></ul><ul><li>Listen for the first heartbeat, that is the top number (systolic BP) </li></ul><ul><li>Continue to listen until there are no more heartbeats. The last beat you hear is the bottom number (diastolic BP) </li></ul><ul><li>Let the air all the way out and remove the cuff. </li></ul>
  • 11. Video Demonstration for Measuring Blood Pressure <ul><li>http://www. uams . edu / csc /programs/orientation/ bloodPressure /TakingBP1. mov </li></ul>
  • 12. Normal Blood Pressure <ul><li>Reference: </li></ul><ul><ul><li>August 2004, National Heart Lung and Blood Institute – Diseases and Conditions Index </li></ul></ul><ul><ul><li>http://www. nhlbi . nih . gov /health/ dci /Diseases/ Hbp /HBP_ WhatIs .html </li></ul></ul><ul><li>For adults 18 and older who: </li></ul><ul><ul><li>Are not on medicine for high blood pressure </li></ul></ul><ul><ul><li>Are not having a short-term serious illness </li></ul></ul><ul><ul><li>Do not have other conditions such as diabetes and kidney disease </li></ul></ul><ul><li>Systolic BP: Less than 120 </li></ul><ul><li>Diastolic BP: Less than 80 </li></ul>
  • 13. Pre-Hypertension <ul><li>Systolic BP: between 120-139 </li></ul><ul><li>Diastolic BP: between 80-89 </li></ul><ul><ul><li>Examples: 118/82, 128/89, or 130/86 </li></ul></ul><ul><ul><li>If your blood pressure is in the pre-hypertension range, it is more likely that you will end up with high blood pressure unless you take action to prevent it. </li></ul></ul><ul><li>Note: When systolic and diastolic blood pressures fall into different categories, the higher category should be used to classify blood pressure level. </li></ul>
  • 14. Hypertension <ul><li>Stage 1 </li></ul><ul><li>Systolic BP: between 140-159 </li></ul><ul><li>Diastolic BP: between 90-99 </li></ul><ul><li>Stage 2 </li></ul><ul><li>Systolic BP: 160 or higher </li></ul><ul><li>Diastolic BP: 100 or higher </li></ul>
  • 15. Hypotension <ul><li>Hypotension is a subnormal arterial pressure. </li></ul><ul><ul><li>There is not enough pressure to adequately perfuse the tissues. </li></ul></ul><ul><ul><li>There is usually a mean arterial pressure (MAP) below 60 mmHg. </li></ul></ul><ul><ul><ul><li>MAP= diastolic + 1/3(systolic-diastolic) </li></ul></ul></ul><ul><ul><ul><li>Example: BP= 120/70 </li></ul></ul></ul><ul><ul><ul><li> MAP= 70 + 1/3(120-70)= 86.6 </li></ul></ul></ul><ul><li>People who are chronically hypertensive may feel symptoms of hypotension if their mean arterial pressure drops by 40 mmHg, even if the absolute value is still over 60. </li></ul>
  • 16. Orthostatic Hypotension <ul><li>Orthostatic hypotension exists if the systolic drops by 20mmHg, or if the diastolic drops by 10mmHg upon sitting or standing for 3 minutes. </li></ul><ul><li>Symptoms: headache, dimming of vision, weakness, lightheadedness, that occur as go from lying to sitting or standing position. </li></ul><ul><li>Causes: volume depletion, diabetes, medications such as anticholinergics, Parkinson's, etc. </li></ul>
  • 17. Measuring Orthostatic BP <ul><li>Determine the blood pressure in the supine position. </li></ul><ul><li>Sit the subject up, wait 3 minutes, and check the blood pressure again. </li></ul>
  • 18. The End The End

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