ATI LPN
Cardiovascular Nursing Questions Questions
Question 1 of 5
Which septum divides the common atrium?
Correct Answer: C
Rationale: The septum primum initially divides the common atrium, followed by the septum secundum in atrial septation.
Question 2 of 5
Which of the following statements about cardiac muscle is most accurate?
Correct Answer: B
Rationale: Cardiac muscle contraction strength depends on extracellular calcium entering via L-type channels.
Question 3 of 5
A patient with high pH levels and increased HCO3- in blood. He will most likely be presenting with:
Correct Answer: B
Rationale: High pH and increased HCO3- indicate metabolic alkalosis, often from hypoventilation retaining CO2.
Question 4 of 5
Which type of hypersensitivity is rheumatic fever?
Correct Answer: B
Rationale: Rheumatic fever is a type II hypersensitivity reaction due to molecular mimicry.
Question 5 of 5
The most frequent cause of aortic valve incompetence and regurgitation is:
Correct Answer: C
Rationale: Rheumatic fever is the most common cause of aortic regurgitation due to valve scarring.