Practice Lab Practical on Quantitative Analysis of the Cardiovascular System
  1. Mr. Elway’s resting BP was 120/70 mmHg and his resting heart rate was 50 bpm. After exercising, his cardiac output was 6 times the resting value. Calculate his cardiac output just after exercise.

  2. Mr. Marino is an overweight 59 year old male. You were given the following data on him:
    • Post-exercise HR = 100 bpm
    • Resting SBP = 120 mmHg
    • Resting DBP = 80 mmHg
    • Resting pulse rate = 60 pulses / 45 seconds
    • Percent change in CO = 500%

    Calculate the following:

    1. Resting HR
    2. Resting PP
    3. Resting SV
    4. Resting CO
    5. Post-exercise CO
    6. Post exercise SV
    7. Post-exercise PP

  3. What event is happening in the heart during the diastolic blood pressure reading?

  4. If cardiac output = 4800 mL/min and heart rate = 60 bpm, then how much TOTAL BLOOD leaves the heart per cardiac cycle?
    1. 240mL
    2. 160mL
    3. 40mL
    4. 77.6mL

  5. A problem with the mitral valve would be more likely to affect the (first/second) heart sound.

  6. Jim has a resting HR of 54bpm while Arnie has a resting HR of 76bpm. One of them must have some sort of cardiac disorder. True or False? Explain.

  7. As exercise proceeds, you would expect:
    1. HR to…
    2. CO to…
    3. Ventricular filling time to…
    4. Stroke volume to…

  8. If stroke volume increases, pulse pressure will…

  9. While riding home on the bus (reading the chapter on blood vessels in your text), the elderly woman seated next to you notices your A&P book and strikes up a conversation with you. She tells you that her blood pressure is something over 90 – she’s not sure what the systolic BP is. She does, however, remember that the nurse said the systolic was just high enough to be considered hypertensive. You decide to test out what you learned in A&P lab, so you find her radial pulse and count the number of times you feel it in 10 seconds. You feel it 13 times. Calculate an approximate value for the woman’s cardiac output.

  10. Given that:
    • %Change in CO = 500%
    • CO just after exercise = 24,000 mL/min
    • Resting pulse rate = 100 bpm
    • Resting Diastolic BP = 60mmHg

    Calculate:

    1. Resting CO
    2. Resting SV
    3. Resting PP
    4. Resting SBP

  11. The following values were experimentally obtained for Mr. X:
    • SV = 68 mL/beat
    • CO just after exercise is 5 times his CO at rest
    • Both systolic and diastolic blood pressures are normal. Neither indicates hyper- or hypotension
    • Pulse rate = 15 pulses/ 20 seconds

    Calculate values for his:

    1. HR at rest
    2. CO at rest
    3. CO just after exercise
    4. % change in CO due to exercise
    5. PP at rest
    6. Suggest a possible value for his SBP and DBP based on your information and calculations


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