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Table 1
Interval
Time (s)
P–R
0.123
QRS
0.080
Q–T
0.279
R–R
0.888
P Wave
R
T-wave
Q
S
Conclusion
1. In the space below, explain what an EKG can tell a physician about the heart of a
specific patient.
An EKG can tell a physician if something is wrong with how the Atrials contract,
How the ventricals contract, and how the ventricals relax
2. Examine the EKG graphs produced in Part 1 and Part 2 of this activity. What do
these graphs indicate about the flow of current through the heart and consequently
through the body? (Hint: think in terms of electrical charges.)
It shows that the electrical charges move really fast, and can mess up pretty
easily.
Project Lead The Way, Inc.
Copyright 2010
PBS – Activity 2.3.3 EKG Measurement Logger Pro– Page 1
Project Lead The Way, Inc.
Copyright 2010
PBS – Activity 2.3.3 EKG Measurement Logger Pro– Page 2