You will now perform some basic ECG interpretation. Following are two tracings f

Question

You will now perform some basic ECG interpretation. Following are two tracings for which you will calculate the heart rate and determine the duration of key periods of the ECG. Identify and label the P wave, QRS complex, T wave, P-R interval, and Q-T interval on Tracings 1 and 2 in Figure 11.27. calculate the heart rate for each tracing. Are the values normal or abnormal? Heart Rate Tracing 1: ___ Heart Rate Tracing 2: ___ Determine the R-R interval, QRS duration, P-R internal, and Q-T interval for each tracing, and record the values in Table 11.8.

Explanation / Answer

1) First curve is the 'P'-wave ,second one is the QRS complex and the third curve is 'P'-wave.The interval between P and R is the PR interval ,the time interval between two consecutive R's is the RR interval and the interval between the Q and T is the QT interval.

2) a.50bpm,abnormal; lower than the normal range

b.75bpm,normal.

3)RR interval- 0.50 and 0.75

QRS duration- 0.10 and 0.10

PR interval- 0.10 and 0.15

QT interval- 0.40 and 0.60.

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