1. Name this dysrhythmia:

2. Idioventricular (ventricular bradycardia)

3. An ECG strip shows a rhythm with normal P-R, P’s are 1:1 with QRS complexes, rate 70, rhythm regular, QRS 0.14 sec. What is the name of the rhythm?

4. NSR with a bundle

5. An ECG strip shows wide QRS complexes at a rate of 170. No P waves are seen. One possible interpretation of this rhythm is V Tach. What is another possible interpretation?

6. SVT with a bundle branch block

7. Describe how the marks on the border of the ECG paper can be used to determine heart rate.

8. The marks are 3 seconds apart. Count the number of complexes in six seconds and multiply by ten to find the heart rate.

9. Name the value of one small square on ECG paper: 1) In units of time (horizontal) 2) In metric units of length (vertical)

10. 1) 0.04 Seconds 2) 1 millimeter

11. Describe the conventional method of standardization of an ECG machine

12. A one millivolt impulse will cause a deflection of 10 mm (which is two large squares)

13. Name three different indications that PVC’s should be treated

14. 1) Multifocal 2) R on T phenomenon 3) Coupled (or runs of VT) 4) Associated with MI or ischemia

15. Where is the primary disease in patients with first, second, or third degree block?

16. The A-V node

17. Name (in order) the components of the conduction system of the heart.

18. Sino-atrial node (internodal pathways) Atrio-ventricular node Bundle of His Bundle branches Purkinje fibers

19. State in order the numbers used to determine the heart rate by counting the large squares between R waves (answer counting up to at least 7 squares)

20. 300-150-100-75-60-50-43-37-33-30

21. Name this dysrhythmia

22. Controlled atrial fibrillation

23. Why is the sinus node normally in control of the heart?

24. Because it has the fastest inherent discharge rate

25. What are the normal values for: 1) P-R interval 2) QRS duration

26. 1) 0.12 -0.20 seconds 2) Up to 0.10 seconds

27. Describe the triad of infarction

28. 1) Pathological Q 2) Elevated S-T segment 3) Inverted T wave