ATI LPN
Cardiovascular Exam Questions Questions
Question 1 of 5
Cardiac output is the volume of blood ejected from the_____ ventricle into the_____ each minute.
Correct Answer: A
Rationale: Cardiac output specifically refers to the blood volume pumped by the left ventricle into the aorta per minute.
Question 2 of 5
Both the tunica media and the tunica externa are absent in:
Correct Answer: C
Rationale: Capillaries consist only of tunica intima (endothelium), lacking media and externa.
Question 3 of 5
Which of the following is not true of the atria?
Correct Answer: B
Rationale: Auricles are specific structures that extend from the atria but are not synonymous with them.
Question 4 of 5
Cardiac output is determined by the:
Correct Answer: C
Rationale: Cardiac output is calculated as the product of stroke volume and heart rate.
Question 5 of 5
The period between the filling of the ventricles and the opening of the semilunar valves is called:
Correct Answer: B
Rationale: This period is ventricular contraction (systole), where the ventricles contract after filling, building pressure to open the semilunar valves and eject blood.