Cardiovascular Lab Report 2

Topics: Pulse, Heart, Blood pressure Pages: 8 (983 words) Published: April 12, 2015
Cardiovascular Lab Report

Name: Jordan Butler
Lab Section: 1 2

Record your data using the tables below. Using your own words, answer the following questions.

Pulse Measurement:
Observations:
Data Table 1.
Pulse Location

Pulse Rate (beats/min)

Radial

68 beats/min

Carotid

76 beats/min

Popliteal

60 beats/min

Data Table 2.
Radial Pulse

Pulse Rate (beats/min)

Sitting

68 beats/min

Standing

84 beats/min

Post Exercise

104 beats/min

1. What is the definition of a single pulse?
—A pressure wave in an artery caused by the successive contractions of the heart. 2. A patient is in the SICU or the post surgical unit or step-down unit. The heart rate, blood pressure (arm), and oxygen saturation (finger tip) are automatically monitored; however the nurse takes the patient’s pulse in the dorsalis pedis manually. Explain why the nurse is doing this and what are two major cardiovascular issues the nurse is looking for? Remember- think of the clinical setting (acute, NOT chronic). 3. What was your lab partner’s pulse rate immediately before and after you had them stand up? —68 beats/min before standing and 84 beats/min after standing.

4. Was the pulse rate different after the subject stood for 1 minute versus immediately before and after he/she stood up?

5. Describe the cardiovascular changes that occurred from sitting to I minute after standing. Include how the PNS and CNS as well as the cardiovascular system were involved in these changes. 6. Explain why it is more accurate to take a person’s pulse at 6:00 AM versus 6:00 PM.

Heart Sounds:
7. What is the definition of the cardiac cycle?
—The complete cycle of contraction and relaxation.
8. What do the “lub” and “dub” heard through a stethoscope represent? —Lub represents the closure of the AV valves and Dub represents the closure of the semilunar valves. 9. What are the apical and radial pulses?

—Apical pulse is a pulse count taken with a stethoscope at the apex of the heart and a radial pulse is a 10. What might it indicate if a patient’s apical and radial pulses were very different?

Blood Pressure Measurements:

Arm Position

Arm extended

Radial Pulse (beats/minute)

Blood Pressure mm Hg
(Systolic/Diastolic)

80 beats/min

140/60

64 beats/min

160/40

68 beats/min

140/40

Arm held overhead

Arm held down

Condition

Radial Pulse
(beats/min)

Blood Pressure mm Hg
(Systolic/Diastolic)

72 beats/min

100/50

104 beats/min

150/60

80 beats/min

135/45

While holding breath

While hyperventilating

While placing one hand in ice water

11. Define blood pressure.
12. What happened to the blood pressure when the subject extended their arm overhead? 13. What happened to the blood pressure when the subject held their arm down? 14. Were there changes in the radial pulse?

15. Explain why it is important to take the blood pressure when the arm is extended at approximately heart level. Refer to your data from the exercise above.
16. Did you observe a difference in blood pressure and/or radial pulse during breath holding, hyperventilation?
17. Explain the reasons for the observed changes under each of these conditions. 18. What happened to blood pressure and heart rate with physical exertion? 19. What was your index of physical fitness and what classification was it in? 20. What diseases/pathologies have elevated blood pressure as a risk factor? 21. What is “Syndrome X”?

ECG Analysis:

On the ECG trace below, assume a standard recording rate of 25 mm/sec, and that the voltages are calibrated so that 1 mV = 10 mm in the vertical (Y-axis) direction. Each small 1 mm square represents 0.04 sec or 40 msec and 0.1 mV in voltage.

22. Calculate the heart rate in beats/min assuming that the subject has a normal sinus rhythm as represented by waves 1 and 2.
23. Calculate the heart rate of a subject with an ECG trace represented by waves 2 and 3. In general, what...
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