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CARDIOVASCULAR SYSTEM MCQ – Exercise 18

By | Published: October 21, 2015

The multiple choice questions in this online test paper focuses on CARDIOVASCULAR SYSTEM MCQ. If you are looking for self evaluation of your PG Medical entrance exam preparation then this online CARDIOVASCULAR SYSTEM MCQ Test Paper will help you to evaluate your exam preparation.

Instruction for REPRODUCTIVE BIOLOGY/ REPRODUCTIVE MEDICINE / INFERTILITY MCQs:

1- This online MCQ practice test paper contains 30 questions.
2- Each question in this online practice test paper have four options and only 1 option is correct.
3- You can view the answers of this practice test paper after submitting the practice test paper.
Note: The answers mentioned at the end of practice test are the best suitable option as per our knowledge. Users shall cross-check the answers with their textbooks.

Q 1. in ECG if the mean orientation of the depolarizing vector is at right angles to a given lead axis , which of the following will happen

 
 
 
 

Q 2. Bipolar lead II measures the difference in potential between

 
 
 
 

Q 3. QRS vector 1 points towards

 
 
 
 

Q 4. number of intercostals space used for placing unipolar chest leads in ECG are

 
 
 
 

Q 5. resting membrane potential in ventricular myocardium is

 
 
 
 

Q 6. an abnormal increase in U wave amplitude is due to which of the following electrolyte disturbance

 
 
 
 

Q 7. ECG leads I , II , III are called

 
 
 
 

Q 8. electrical augmentation of unipolar potentials in unipolar leads is by

 
 
 
 

Q 9. PR interval is related to

 
 
 
 

Q 10. ECG chest leads record potentials transmitted onto

 
 
 
 

Q 11. ECG leads aVR, aVL, aVF are called

 
 
 
 

Q 12. which of the following prolong phase 2 of the cardiac muscle action potential and increase the QT interval

 
 
 
 

Q 13. Bipolar lead I measures the difference in potential between

 
 
 
 

Q 14. extremity ECG leads record potentials transmitted onto

 
 
 
 

Q 15. automaticity is normally observed in

 
 
 
 

Q 16. very prominent U waves are a marker of increased susceptibility to which of the following

 
 
 
 

Q 17. right axis deviation occurs in

 
 
 
 

Q 18. the normal atrial depolarization vector is oriented

 
 
 
 

Q 19. an abnormal increase in U wave amplitude is due to which of the following drugs

 
 
 
 

Q 20. above what degree of QRS axis is left axis deviation defined

 
 
 
 

Q 21. in unipolar leads the lowercase a stands for

 
 
 
 

Q 22. ECG lead V6 is placed at

 
 
 
 

Q 23. above what degree of QRS axis is right axis deviation defined

 
 
 
 

Q 24. polarized resting myocardial cells carry an electric charge on their surface of about

 
 
 
 

Q 25. right axis deviation occurs in

 
 
 
 

Q 26. left axis deviation occurs in

 
 
 
 

Q 27. QRS vector 2 points towards

 
 
 
 

Q 28. in the hexaxial diagram representing frontal plane (limb or extremity) leads, 0 degree corresponds to which lead

 
 
 
 

Q 29. the action potential of his purkinje system and ventricular myocardium has

 
 
 
 

Q 30. Bipolar lead III measures the difference in potential between

 
 
 
 


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