Linton: Introduction to Medical-Surgical Nursing, 6th Edition
Chapter 36: Cardiac Disorders
Answer Key – Open-Book Quiz
1. The sinoatrial node (pacemaker) initiates the impulse. The impulse is carried
throughout the atria to the atrioventricular (AV) node. The impulse is delayed in the
2. First, the correct size blood pressure cuff must be used. Position the arm at the heart
3. Listen to the aortic area first and then the pulmonic. Listen to the tricuspid and mitral
4. An electrocardiogram provides a record of the electrical activity through the heart
5. In a catheterization of the right side of the heart, the catheter is inserted into a vein
7. Failure to pace—pacemaker did not initiate the electrical stimulus when it was due to
fire; failure to capture—the electrical stimulus from the pacemaker is not followed by
8. The fatty streak is the earliest lesion to develop in atherosclerosis. The fibrous plaque
is the characteristic lesion of progressing atherosclerosis, which develops over time.
9. Minimally invasive direct coronary artery bypass grafting, off-pump coronary artery
10. The mitral valve prolapses when one or both leaflets enlarge and protrude(s) into the