FINAL EXAM - EKG Questions with Correct Solutions

FINAL EXAM - EKG Questions with Correct Solutions


Question:
1. right atrium receives blood from ____

Answer:
superior and inferior vena cava


Question:
2. right ventricle pumps blood to ____

Answer:
lungs


Question:
3. left atrium receives blood from ____

Answer:
pulmonary veins


Question:
4. left ventricle pumps blood to ____

Answer:
body/systemic circulation


Question:
5. 3 important qualities of myocardial cells

Answer:
conductivity, automaticity, and overdrive suppresion


Question:
6. where is the SA node located?

Answer:
junction of right atrium and superior vena cava


Question:
7. intrinsic rate of SA node

Answer:
60-100 bpm

,Question:
8. where is the AV node located?

Answer:
inferior portion of right atrium


Question:
9. intrinsic rate of AV node

Answer:
40-60 bpm


Question:
10. Bundle of His separates into ____

Answer:
right and left bundle branches


Question:
11. where are the purkinje fibers located?

Answer:
walls of ventricles


Question:
12. intrinsic rate of purkinje fibers

Answer:
20-40 bpm


Question:
13. electrical stimulation to the cardiac muscle cell membrane causes ___

Answer:
depolarization


Question:
14. ____ is the reset of the heart when it is ready to transmit another charge

Answer:
repolarization


Question:
15. normal EKG strip is ___

, Answer:
6 seconds


Question:
16. time length of width of large box on EKG strip

Answer:
0.2 seconds


Question:
17. height of large box on EKG strip

Answer:
0.5 mv


Question:
18. P wave represents ____

Answer:
atrial depolarization


Question:
19. P wave should be ___ blocks or less

Answer:
3


Question:
20. QRS complex represents ____

Answer:
ventricular depolarization


Question:
21. QRS complex should be ___ blocks or less

Answer:
3


Question:
22. T wave represents ____

Answer:
ventricular repolarization