ATI LPN
100 Questions on the Cardiovascular System Questions
Question 1 of 5
Diminished blood flow to an organ or tissue that reduces the oxygen level and impairs cell function is called:
Correct Answer: A
Rationale: Ischemia refers to diminished blood flow leading to reduced oxygen levels and impaired cellular function.
Question 2 of 5
Peripheral resistance to blood flow comes about because of:
Correct Answer: A
Rationale: Peripheral resistance arises primarily from friction between blood and vessel walls, especially in arterioles, where resistance is highest due to their small diameter.
Question 3 of 5
A patient who has just been admitted with pulmonary edema is scheduled to receive the following medications. Which medication should the nurse question before giving?
Correct Answer: D
Rationale: Although carvedilol is appropriate for the treatment of chronic heart failure, it is not used for patients with acute decompensated heart failure (ADHF) because of the risk of worsening the heart failure. The other drugs are appropriate for the patient with ADHF.
Question 4 of 5
What is meant by the concept 'venous return mechanism'?
Correct Answer: A
Rationale: Venous return refers to blood movement back to the heart, facilitated by muscular activity and vessel mechanisms.
Question 5 of 5
Coronary vessels are found in:
Correct Answer: B
Rationale: Coronary vessels are primarily located in the epicardium, supplying blood to the myocardium.