Lab 13-1 Blood Pressure and Pulse Rate - Physics-matters.net

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8. What is the name of the instrument used to determine blood pressure? __________________________9. What are the sounds of Korotkoff?______________________________________________________10. What causes the systolic sound?________________________________________________________11. What causes the sound to disappear?____________________________________________________12. A person has a blood pressure of 135/87.a. What number represents the systolic pressure?___________________b. What number represents the diastolic pressure?__________________13. What effect (increase or decrease) does each of the following have on blood pressure?______ Increased diameter of the arterioles ______ Hemorrhage (blood loss)______ Increased blood viscosity______ Arteriosclerosis______ Increased cardiac output______ Increased pulse rate______________________________________________________________________________________PART 2: TEST OF FITNESSThe point scores on the following tests provide an evaluation of fitness based not only on cardiac musculardevelopment but also on the ability of the cardiovascular system to respond to sudden changes in demand.CAUTION: Make sure you do NOT attempt this exercise if strenuous activity will aggravate a healthproblem.TEST 1: STANDING SYSTOLIC COMPARED WITH RECLINING SYSTOLICUse the sphygmomanometer to measure the change in systolic blood pressure from reclining to a standingposition.1. Put the blood pressure cuff on the arm of the subject but do not inflate the cuff.2. The subject should recline on the lab table for at least 5 minutes. At the end of this time, measure thesystolic and diastolic pressure. Record your measurements below.Reclining systolic pressure = __________ mm HgReclining diastolic pressure = __________ mm Hg3. Remain reclining for two minutes, then stand and immediately measure the systolic and diastolic pressure.Record your measurements below.Standing systolic pressure = __________ mm HgStanding diastolic pressure = __________ mm Hg4. Subtract the standing systolic pressure from the reclining systolic pressure.Systolic pressure difference = __________ mm Hg4
5. Assign fitness points based on the data in the table below. Circle the number of fitness points assigned.Change (mm Hg) Fitness PointsRise of 8 or more 3Rise of 2 to 7 2No rise 1Fall of 2 to 5 0Fall of 6 or more –1Cardiac Rate and Physical FitnessDuring physical exertion, the cardiac rate (beats per minute) increases. This increase can be measured as anincrease in pulse rate. Although the maximum cardiac rate is generally the same in people of the same agegroup, those who are physically fit have a higher stroke volume (milliliters per beat) than more sedentaryindividuals. A person who is in poor physical condition, therefore, reaches his or her maximum cardiac rate at alower work level than a person of comparable age who is in better shape. Individuals who are in good physicalcondition can deliver more oxygen to their muscles (have a higher aerobic capacity) before reaching maximumcardiac rate than can those in poor condition.Thus, the physically fit have a slower increase in their cardiac rate with exercise and a faster return to theresting cardiac rate after exercise. Physical fitness, therefore, involves not only muscular development but alsothe ability of the cardiovascular system to respond to sudden changes in demand.TEST 2: STANDING PULSE RATE1. The subject should stand at ease for 2 minutes after Test 1.2. After the 2 minutes, determine the subject’s pulse. Count the number of beats for 30 seconds and multiplyby 2. Record the pulse rate below:Standing Pulse Rate = __________ bpm (beats per minute)3. Assign fitness points based on the data in the table below. Circle the number of fitness points assigned.TEST 3: RECLINING PULSE RATEPulse Rate (bpm) Fitness Points60 – 70 371 – 80 381 – 90 291 – 100 1101 – 110 1111 – 120 0121 – 130 0131 – 140 –11. The subject should recline for 5 minutes on the lab table. The subject should remain reclining inpreparation for TEST 4.2. Determine the subject’s pulse. Count the number of beats for 30 seconds and multiply by 2. Record thepulse rate below:Reclining Pulse Rate = __________ bpm (RPR)5
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Lab 13-1 Blood Pressure and Pulse Rate - Physics-matters.net

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