ATI LPN
Cardiovascular Questions Questions
Question 1 of 5
Identify the fetal structures that help circulation to by-pass the lungs.
Correct Answer: B
Rationale: The ductus arteriosus and foramen ovale shunt blood away from the fetal lungs.
Question 2 of 5
The internal layer of the tissue in the heart is the epicardium.
Correct Answer: B
Rationale: The endocardium is the innermost layer lining the heart chambers, not the epicardium (outer layer).
Question 3 of 5
The visceral pericardium adheres to the surface of the heart.
Correct Answer: A
Rationale: The visceral pericardium (epicardium) directly covers the heart surface.
Question 4 of 5
All arteries of the systemic circulation branch from the:
Correct Answer: D
Rationale: The aorta is the origin of all systemic arteries.
Question 5 of 5
If the AV node were forced to assume pacemaker activity, what would be the resulting pulse rate?
Correct Answer: D
Rationale: If the AV node assumes pacemaker activity, the pulse rate typically ranges from 40 to 60 beats per minute.