ATI RN
Cardiovascular System Assessment Questions Questions
Question 1 of 5
Which of the following is NOT an aspect of capillary structure and function?
Correct Answer: D
Rationale: Capillaries are microscopic (A), exchange sites (B), and fed by arterioles (C), but blood flow is slow (D is false, ~0.3 mm/s) to allow exchange.
Question 2 of 5
List the sections of the aorta beginning with the section that leaves the heart.
Correct Answer: B
Rationale: The aorta’s sections from the heart are: ascending aorta, aortic arch, descending aorta (B). A, C, D misorder the sequence.
Question 3 of 5
With age, the size of the heart typically ___ and the resting heart rate ___
Correct Answer: D
Rationale: With age, the heart size increases (D) due to hypertrophy from workload, and resting heart rate decreases due to reduced autonomic responsiveness and fitness.
Question 4 of 5
The instrument used to measure blood pressure is known as:
Correct Answer: D
Rationale: A sphygmomanometer (D) measures blood pressure using a cuff and gauge. ECG (A) records heart electrical activity, barometer (B) atmospheric pressure, and manometer (C) general pressure.
Question 5 of 5
Parasympathetic stimulation of heart causes:
Correct Answer: A
Rationale: Parasympathetic (vagal) stimulation slows the SA node (A), reducing heart rate (bradycardia). B, C, and D are sympathetic effects.