ATI LPN
Cardiovascular Assessment Nursing Questions Questions
Question 1 of 5
A simple equation for the calculation of blood pressure can be written as: Blood Pressure = Cardiac Output x Resistance to blood flow. Identify one factor that affects resistance to the flow of blood within systemic blood vessels.
Correct Answer: C
Rationale: Vessel diameter greatly influences blood flow resistance according to Poiseuille's Law.
Question 2 of 5
Which of the following is associated with the 1st heart sound?
Correct Answer: B
Rationale: The 1st heart sound (S1) is caused by the closing of the atrioventricular (AV) valves at the start of systole.
Question 3 of 5
What is the normal total delay of the cardiac impulse in the AV node and AV bundle system?
Correct Answer: D
Rationale: The total delay in the AV node and bundle is about 0.13 seconds, allowing atrial contraction before ventricular.
Question 4 of 5
When HMG CoA is present in mitochondria what will it produce?
Correct Answer: B
Rationale: In mitochondria, HMG CoA is used in ketogenesis to produce ketone bodies.
Question 5 of 5
A patient presented to you in your clinic with chest pain and fatigue, after doing blood culture and taking a biopsy, the results indicate that the patient has myocarditis caused by gram-positive bacilli. Which of the following is the most common cause?
Correct Answer: D
Rationale: Corynebacterium diphtheriae, a gram-positive bacillus, is a common cause of myocarditis via toxin production.