ATI LPN
Cardiovascular Assessment Nursing Questions Questions
Question 1 of 5
The effect of what substance is to decrease total blood volume?
Correct Answer: B
Rationale: Atrial natriuretic hormone (ANH) decreases blood volume by promoting sodium and water excretion in the kidneys. ADH and aldosterone increase blood volume by retaining water and sodium, respectively.
Question 2 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 3 of 5
What's the type of epithelium found in endothelium and mesothelium?
Correct Answer: C
Rationale: Endothelium and mesothelium are composed of simple squamous epithelium for efficient exchange and lining.
Question 4 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 5 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.