ATI LPN
Cardiovascular Questions Questions
Question 1 of 5
The pulse in the neck is felt over which artery?
Correct Answer: B
Rationale: The common carotid artery is located in the neck and is the primary site for feeling the carotid pulse due to its superficial position and strong pulsation.
Question 2 of 5
Figure 1.18 shows a diagrammatic picture of the cardiac impulse. Using the information in this diagram, describe the flow of blood during the specific stages of the cardiac cycle in relation to the cardiac impulse. In your answer explain how the heart valves help control the direction of blood flow.
Correct Answer: C
Rationale: The cuspid valves open and the semi-lunar valves close during diastole allowing blood to enter the ventricles. During systole, the cuspid valves close preventing backflow, while the semi-lunar valves open allowing blood to exit the ventricles.
Question 3 of 5
Which of the following factors have no effect on blood return?
Correct Answer: A
Rationale: GI motility affects digestion, not venous return, unlike the respiratory pump, muscle contraction, and gravity, which influence venous return.
Question 4 of 5
When recording lead II on an ECG, the positive electrode is the:
Correct Answer: B
Rationale: Lead II uses the left leg as the positive electrode and the right arm as the negative electrode.
Question 5 of 5
If the origin of the stimulus that causes atrial paroxysmal tachycardia is near the AV node, which of the following statements about P-wave in standard limb lead I is most accurate?
Correct Answer: C
Rationale: A stimulus near the AV node causes retrograde atrial activation, inverting the P-wave in lead I.