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Journal May 2010 (Vol 31, No 5)

NOTE: You have already passed this course.
NOTE: This course is no longer valid for accreditation purposes.

Obtaining and Interpreting Electrocardiograms

1. Which type of heart block results in independent atrial and ventricular heart rates?
2. Which artifact can be caused by panting?
3. At a paper speed of 50 mm/sec, a technician counts 20 small boxes between the R-R intervals. If the 1500 or 3000 method is used, the patient's heart rate is ____ bpm.
4. Proper patient positioning for a standard six-lead ECG tracing is
5. Which of the following is least in need of continuous ECG monitoring?
6. An ECG that does not show a QRS complex for every P wave indicates that
7. An ECG with a paper speed of 25 mm/sec was obtained for a puppy, revealing a heart rate of 150 bpm. Using the 10 or 20 method, how many complexes were counted in 6 seconds?
8. Which part of the waveform represents a delay in electric activity at the AV node to allow proper atrial contraction and ventricular filling?
9. The length of a straight line between the beginning of the P wave and the beginning of the QRS complex is
10. Located at the junction of the right atrium and the interventricular septum, the ________ allow(s) (1) electric conduction to slow and (2) proper filling of both ventricles before ventricular depolarization.
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