ATI LPN
Cardiovascular System Questions Questions
Question 1 of 5
Cardiac muscle tissue is characterized by all of these EXCEPT:
Correct Answer: B
Rationale: Cardiac muscle cells are short, branched, and typically uninucleated, not long, multinucleated, or cylindrical like skeletal muscle.
Question 2 of 5
The nurse is developing a nursing care plan for a patient who is being treated for hypertension. What is a measurable patient outcome that the nurse should include?
Correct Answer: A
Rationale: Dietary sodium intake of no more than 2.4g sodium is recommended as a dietary lifestyle modification to prevent and manage hypertension. Giving a specific amount of allowable sodium intake makes this a measurable goal. None of the other listed goals is quantifiable and measurable.
Question 3 of 5
What factor does not alter cardiac output?
Correct Answer: B
Rationale: Sleeping typically does not significantly alter cardiac output as the body's metabolic demands remain stable.
Question 4 of 5
Regarding the conduction system of the heart:
Correct Answer: B
Rationale: The AV node contains P cells, which are responsible for pacemaker activity.
Question 5 of 5
Arteries are blood vessels that:
Correct Answer: A
Rationale: Arteries primarily function to transport blood away from the heart, which can include both oxygenated and deoxygenated blood depending on the specific artery (e.g., pulmonary arteries carry deoxygenated blood).