Sample Questions (CCT)

1. The heart is divided into ______ chambers:
   1. One
   2. Two
   3. Four
   4. Three
2. Which of the following supplies blood to the arterial system after contraction?
   1. Left atrium
   2. Right atrium
   3. Left ventricle
   4. Right ventricle
3. The Sensitivity switch controls the:
   1. Heat
   2. Speed
   3. Amplification
   4. ECG position
4. The little "spark" that makes the heart beat, originates in the:
   1. AV node
   2. SA node
   3. Purkinje fibers
   4. Bundle branches
5. Which of the following is a poor conductor of electric current?
   1. Metal
   2. Blood
   3. Dry skin
   4. Body fluids
6. Leads AVR, AVL and AVF are the ______ leads.
   1. Bi-polar
   2. Standard
   3. Precordial
   4. Augmented
7. Ventricular repolarization occurs during the ______ wave on the ECG.
   1. P wave
   2. T wave
   3. P-R interval
   4. QRS complex
8. Which of the following would not be diagnostic for right ventricular hypertrophy?
   1. Tall R wave in VI
   2. Left axis deviation
   3. Right axis deviation
   4. ST segment depression and inversion in the right chest leads
9. A posterior infarction is caused by an occlusion of the:
   1. Aorta
   2. Right coronary artery
   3. Circumflex branch of the left coronary artery
   4. Anterior descending branch of the left coronary artery
10. Which of the following is an absolute contraindication for performing a maximal graded exercise test?
    1. Atrial fibrillation
    2. Patient over 65 years of age
    3. Six weeks post-bypass surgery
    4. 10 to 14 days post myocardial infarction
11. What type of infarction is indicated by Q waves in lead 1,AVL, V5 and V6?
    1. Lateral
    2. Inferior
    3. Anterior
    4. Posterior
12. Which two ions travel across the cell membrane during the transmembrane action potential?
    1. Organic phosphate ions
    2. Sodium and protein ions
    3. Sodium and potassium ions
    4. Calcium and phosphate ions
13. A number of factors may bring about ST segment depression besides the classical ischemic syndrome. The most common of these is an excess of:
    1. Nitro
    2. Digitalis
    3. Sulfuric acid
    4. Bicarbonate soda
14. Which coronary artery provides the main blood supply to the Atrioventricular node and Bundle of His?
    1. Right coronary artery
    2. Left main coronary artery
    3. Left circumflex coronary artery
    4. Left anterior descending coronary artery
15. Somatic tremor artifact may be caused by:
    1. Switching leads
    2. Circuit overload
    3. Defective machine
    4. A cold, uncomfortable environment
16. Which of the following arrhythmias may lead to death if asynchronous counter shock is not available?
    1. Atrial tachycardia and atrial flutter
    2. Atrial fibrillation and bundle branch block
    3. Ventricular fibrillation and ventricular standstill
    4. Sinus tachycardia and wandering pacemaker

Answers
1. c   5. c    9. b   13. b  2. c   6. d   10. d     14. a   3. c   7. b   11. a     15. d   4. b   8. b   12. c     16. c