ATI RN
100 Questions on the Cardiovascular System Questions
Question 1 of 5
The endothelium is found in the
Correct Answer: A
Rationale: The endothelium lines the tunica intima (A), the innermost layer of blood vessels, facing the lumen (D). Tunica media (B) is smooth muscle, tunica externa (C) is connective tissue.
Question 2 of 5
In which septum is it normal to find openings in the adult?
Correct Answer: D
Rationale: No septa normally have openings in adults (D). Fetal interatrial septum has the foramen ovale, but it closes at birth.
Question 3 of 5
The earliest organ to form and begin function within the developing human is the
Correct Answer: D
Rationale: The heart (D) forms and beats by ~3-4 weeks, the earliest functioning organ.
Question 4 of 5
Which of the following adverse reactions should the nurse assess in a 70-year-old adult who is receiving a continuous infusion of lidocaine?
Correct Answer: C
Rationale: Lidocaine (C) can cause confusion, especially in older adults, as a CNS side effect. Hypertension (A), osteoarthritis (B), and visual changes (D) are unrelated.
Question 5 of 5
Arteries are blood vessels that
Correct Answer: C
Rationale: Arteries (C) lead away from the heart, carrying oxygenated blood (A) except pulmonary arteries (deoxygenated, B). Veins travel to the heart (D).