ATI LPN
100 Questions on the Cardiovascular System PDF Questions
Question 1 of 5
Q .= SV x HR. Explain the meaning of this equation and give typical resting values that you would expect in an endurance-based athlete.
Correct Answer: D
Rationale: Explanation derived from provided content.
Question 2 of 5
When recording lead III on an ECG, the negative electrode is the:
Correct Answer: A
Rationale: Lead III uses the left arm as the negative electrode and the left leg as the positive electrode.
Question 3 of 5
Which of the following statements about coronary blood flow is most accurate?
Correct Answer: C
Rationale: Subendocardial flow decreases more during systole due to greater compression by the contracting myocardium.
Question 4 of 5
Which of the following type of shock is due to decreased TPR?
Correct Answer: B
Rationale: Neurogenic shock decreases total peripheral resistance (TPR) due to loss of sympathetic tone.
Question 5 of 5
cTnT binds to:
Correct Answer: A
Rationale: Cardiac troponin T (cTnT) binds to tropomyosin in the troponin complex.