ATI LPN
Cardiovascular Med Surg Questions Questions
Question 1 of 5
Which of the following does NOT influence heart rate?
Correct Answer: D
Rationale: All listed factors can influence heart rate. Body temperature, emotions, and venous return affect heart rate through various mechanisms such as autonomic regulation and preload effects.
Question 2 of 5
What vessels drain oxygen poor blood from the brain, head, and neck?
Correct Answer: A
Rationale: The jugular veins drain deoxygenated blood from the brain, head, and neck.
Question 3 of 5
Contraction of the atria of the heart leads to blood moving directly
Correct Answer: D
Rationale: Atrial contraction forces blood through the atrioventricular (AV) valves into the ventricles, aiding in ventricular filling.
Question 4 of 5
Isovolumetric contraction is the phase of the cardiac cardiac cycle in which
Correct Answer: D
Rationale: During isovolumetric contraction, ventricular pressure rises rapidly while both the atrioventricular and semilunar valves remain closed, keeping ventricular volume constant until ejection begins.
Question 5 of 5
Umbilical arteries carry blood from the placenta to the fetus.
Correct Answer: B
Rationale: Umbilical arteries carry deoxygenated blood from the fetus to the placenta for oxygenation.