Cardiac Subspecialty Certification (CSC) Exam - Question List

Select how would you like to study

21.

What is the normal polarity of a myocardial cell during the resting period, which causes the electrical potential in for the cell?

  1. Positively charged
  2. Negatively charged
  3. Outside the cell membrane is negatively charged, inside is positively charged
  4. Inside the cell membrane is negatively charged, outside is positively charged
22.

In what part of the heart do cardiac impulses originate?

  1. SA node
  2. AV node
  3. Bundle of His
  4. Left atrium
23.

What is the measurement provided by the PR interval on an EKG?

  1. The time needed for the impulse to spread through the ventricles and pass through the SA node
  2. The time needed for the impulse to spread through the atria and pass through the SA node
  3. The time needed for the impulse to spread through the ventricles and pass through the AV junction
  4. The time needed for the impulse to spread through the atria and pass through the AV junction
24.

What is specifically recorded by LEAD III on a 12-lead EKG?

  1. The difference in electrical potential between the left leg and left arm electrodes
  2. The difference in electrical potential between the left leg and right arm electrodes
  3. The difference in electrical potential between the left arm and right arm electrodes
  4. The electrical potential at one site relative to zero potential
25.

What is the Mason Likar modification?

  1. An adjustment made during metabolic formula used to account for errors due to obesity
  2. An alteration to the formula determining gross oxygen consumption for clients with asthma
  3. A different arrangement for placing electrodes in a 12-lead EKG
  4. A way to add resistance to certain exercises without physically increasing the weight of the dumbbell or apparatus

Select how would you like to study