Lab 5 ECG and Pulse 2014-02-21a
.docx
keyboard_arrow_up
School
Virginia Commonwealth University *
*We aren’t endorsed by this school
Course
445
Subject
Aerospace Engineering
Date
Dec 6, 2023
Type
docx
Pages
3
Uploaded by ChancellorFire11717
Lab 5: ECG and Pulse
ECG & Pulse
DATA REPORT
Date:
___/___/___
Student’s Name:
Sparkle Settles
Lab Section:
____________
I. Data and Calculations
Subject Profile
Name:
JOHN LO-7
Age:
______
Height:_____________
Gender:
__Male
__Female
A.
Comparison of ECG with Pulse Plethysmogram (Segments 1-3) Complete table with
data from three cycles from each segment and calculate the Means.
(10 points)
Condition
Parameter
Measure
Cycle 1
Cycle 2
Cycle 3
Mean
Arm Relaxed
Segment 1
R-R Interval
∆
T
1.15
1.13
1.14
1.14
Heart Rate
BPM
52.40
53.33
52.86
52.86
Pulse Interval
∆
T
1.21
1.14
1.17
3.52
Pulse Rate
BPM
49.59
52.86
51.50
153.95
Temp. Change
Segment 2
R-R Interval
∆
T
1.20
1.09
1.09
1.13
Heart Rate
BPM
50.00
55.29
55.04
53.44
Pulse Interval
∆
T
1.21
1.10
1.32
1.21
Pulse Rate
BPM
0.22
0.22
0.20
0.21
Arm Up
Segment 3
R-R Interval
∆
T
1.85
1.07
1.03
1.32
Heart Rate
Pulse Interval
Pulse Rate
BPM
∆
T
BPM
55.29
56.07
58.25
56.54
1.10
1.15
1.32
1.19
0.19
0.20
0.24
0.21
B.
Relative Volume Changes (Segments 1-3). Complete table with data from each
recording segment.
(10 points)
Condition
Parameter
Cycle 1
Cycle 2
Cycle 3
Mean
Arm Relaxed
Segment 1
QRS amplitude
0.83
1.11
1.06
1
Pulse Amplitude
0.38
0.47
0.42
0.42
Temp. Change
Segment 2
QRS amplitude
0.64
0.61
0.58
0.61
Pulse Amplitude
0.34
0.39
0.42
0.38
Arm Up
Segment 3
QRS amplitude
0.56
0.59
0.54
0.56
Pulse Amplitude
1.14
1.21
1.55
1.30
Revised: 2014-02-21
Lab 5: ECG and Pulse
C. Calculation of Pulse Speed
(10 points)
Distance between Subject’s sternum and shoulder?
22 cm
Distance between Subject’s shoulder and fingertip?
71 cm
Total distance?
93 cm
Data from Segment 1 of the recording (measure with I-beam)
Time between R-wave and Pulse peak:
0.49 secs
Pressure wave speed:
189.79 cm/sec
Data from Segment 2 of the recording (measure with I-beam)
Time between R-wave and Pulse peak:
0.50 secs
Pressure wave speed:
186 cm/sec
Data from Segment 3 of the recording (measure with I-beam)
Time between R-wave and Pulse peak:
0.44 secs
Pressure wave speed:
211.36 cm/sec
II. Questions
(10 points each)
D.
Explain the relationship between the pulse recorded in the finger and heart muscle
contraction
When it comes to contraction, the blood is ejected from the heart and travels into
the aorta. Moving on, the pressure wave then travels from that point all throughout
the peripheral system. The end point of the pressure wave/pulse wave is when it
reaches the fingertip.
E.
Which components of the cardiac cycle (atrial systole and diastole, ventricular
systole and diastole) are discernible in the pulse tracing?
Ventricular systole and diastole are discernible because they are usually what pumps the
blood to the limbs of the body.
F.
Does raising the arm affect the frequency and amplitude of the ECG? Explain the
physiological mechanism underlying this phenomenon.
Raising the arm should not change the amplitude of the ECG. But it will change and
effect the frequency. It is usually caused by changing the Venus return, the effort for you
to raise your arm, or it can be affected by your breathing pattern.
G.
How would you explain the change in pulse amplitude in one arm when changing the
temperature in the other one arm?
We have a closed circulatory system. If you leave a hand in cold water, it leads to
restriction in the arm and it is going to affect the blood flow in the other arm.
Revised: 2014-02-21
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help