ATI LPN
100 Questions on the Cardiovascular System PDF Questions
Question 1 of 5
The first heart sound is associated with
Correct Answer: D
Rationale: The first heart sound ('lub') occurs when the tricuspid and bicuspid (mitral) valves close at the start of ventricular systole.
Question 2 of 5
The hospital nurse cares for many patients who have hypertension. What nursing diagnosis is most common among patients who are being treated for this health problem?
Correct Answer: B
Rationale: Deviation from the therapeutic program is a significant problem for people with hypertension and other chronic conditions requiring lifetime management. For many patients, this is related to adverse effects of medications. Medication cost is relevant for many patients, but adverse effects are thought to be a more significant barrier. Many patients are aware of necessary lifestyle modification, but do not adhere to them. Most patients are aware of the need to monitor their BP.
Question 3 of 5
Regarding percentages of blood volume in the body:
Correct Answer: D
Rationale: Capillaries contain a significant proportion of blood volume due to their extensive network and large surface area.
Question 4 of 5
Effects of electrolyte changes:
Correct Answer: D
Rationale: Magnesium helps counteract digitalis toxicity by stabilizing cardiac membranes and reducing arrhythmogenic effects.
Question 5 of 5
Vascular resistance is determined by:
Correct Answer: D
Rationale: Vascular resistance is primarily influenced by the diameter of the blood vessel, although other factors like length and viscosity also play roles.