ATI LPN
Cardiovascular System Questions Questions
Question 1 of 5
The best description of pulse pressure is the:
Correct Answer: D
Rationale: Pulse pressure is defined as the difference between systolic blood pressure (during ventricular systole) and diastolic blood pressure (during ventricular diastole), reflecting the force generated by the heart with each beat.
Question 2 of 5
Why is atherosclerosis especially dangerous when found in coronary arteries?
Correct Answer: D
Rationale: Atherosclerosis is a disease of the arteries characterised by the deposition of fatty material on their inner walls that can lead to a heart attack, restrict blood flow to the heart muscle, and lead to coronary heart disease.
Question 3 of 5
Which one of the following veins can be used in coronary artery bypass?
Correct Answer: D
Rationale: The great saphenous vein is commonly harvested for coronary artery bypass grafting due to its length and accessibility.
Question 4 of 5
When recording lead aVL on ECG, the positive electrode is the:
Correct Answer: A
Rationale: Lead aVL uses the left arm as the positive electrode, with the right arm and left leg as reference.
Question 5 of 5
Which of the following events occurs at the end of the period of ventricular ejection?
Correct Answer: D
Rationale: The end of ventricular ejection is marked by the closing of the semilunar valves (aortic and pulmonary).