ATI RN
Cardiovascular System Questions Questions
Question 1 of 5
A client in the primary care clinic has poor peripheral perfusion due to peripheral tissue perfusion. Which of the following would be a modifiable risk factor in the prevention of decreased tissue perfusion? Select all that apply.
Correct Answer: C
Rationale: hypertension are modifiable via lifestyle or medication, improving perfusion. Gender (B) and age (D) are non-modifiable. (Source: Document, p. 12-13; adapted, multi-select noted)
Question 2 of 5
The heart wall receives blood from the
Correct Answer: B
Rationale: The heart wall (myocardium) is supplied oxygenated blood by coronary arteries (B) branching from the aorta. Blood in chambers (A) doesn’t nourish the wall, cardiac veins (C) drain it, and pulmonary arteries (D) supply lungs.
Question 3 of 5
The contraction of the heart muscle is called
Correct Answer: C
Rationale: Systole (C) is heart muscle contraction (atrial or ventricular). Diastole (A) is relaxation, peristalsis (B) is GI movement, and spasm (D) is involuntary contraction.
Question 4 of 5
Identify the type of vessel that functions in exchange of blood gases, nutrients, and wastes.
Correct Answer: D
Rationale: Capillaries (D) are thin-walled, allowing gas, nutrient, and waste exchange between blood and tissues. Arteries (A), arterioles (B), and venules (C) transport, not exchange.
Question 5 of 5
Blood pressure is highest in the ___ and lowest in the ___
Correct Answer: B
Rationale: Blood pressure is highest in the aorta (B, ~120/80 mmHg) and lowest in the vena cavae (~0-5 mmHg) as it returns to the heart. Capillaries (A, C) are intermediate (~25 mmHg), arterioles (D) higher than capillaries.