ATI LPN
100 Questions on the Cardiovascular System Questions
Question 1 of 5
Which substance has equal concentrations in CSF and plasma?
Correct Answer: C
Rationale: Sodium (Na+) concentration is nearly equal in CSF and plasma.
Question 2 of 5
The rhythm and electrical activity of the heart can be detected with electrodes on the skin and displayed in the form of an:
Correct Answer: C
Rationale: Electrocardiograms display the heart's electrical activity and rhythm using electrodes placed on the skin.
Question 3 of 5
The chamber that pumps oxygen rich blood to the body is the
Correct Answer: C
Rationale: The left ventricle pumps oxygenated blood into the aorta for systemic circulation.
Question 4 of 5
The contraction of the heart muscle is called
Correct Answer: C
Rationale: Systole refers to the contraction phase of the heart muscle.
Question 5 of 5
Identify the process that allows for the movement of carbon dioxide between the blood and the tissue fluid.
Correct Answer: B
Rationale: Carbon dioxide moves between blood and tissue fluid primarily via diffusion, driven by concentration gradients.