ATI LPN
Cardiovascular System Questions Questions
Question 1 of 5
What factor does not alter cardiac output?
Correct Answer: B
Rationale: Sleeping typically does not significantly alter cardiac output as the body's metabolic demands remain stable.
Question 2 of 5
Arteries are blood vessels that:
Correct Answer: A
Rationale: Arteries primarily function to transport blood away from the heart, which can include both oxygenated and deoxygenated blood depending on the specific artery (e.g., pulmonary arteries carry deoxygenated blood).
Question 3 of 5
The heart secretes the hormone that regulates
Correct Answer: D
Rationale: The heart secretes atrial natriuretic hormone (ANH) to regulate blood pressure by promoting sodium and water excretion.
Question 4 of 5
What is the natural pacemaker of the heart?
Correct Answer: B
Rationale: The SA node is the natural pacemaker, initiating the heartbeat.
Question 5 of 5
Identify the type of vessel that functions in exchange of blood gases, nutrients, and wastes.
Correct Answer: D
Rationale: Capillaries are specialized for the exchange of gases, nutrients, and waste products between blood and tissues due to their thin walls and slow blood flow.