ATI RN
Cardiovascular System Questions Questions
Question 1 of 5
The normal amount of hemoglobin per deciliter of blood is:
Correct Answer: B
Rationale: Normal hemoglobin is 13-16 g/dL (men: 13.5-17.5, women: 12-15.5), aligning with option B. Other values are either too high or too low for human norms.
Question 2 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 3 of 5
The visceral serous pericardium is also known as the:
Correct Answer: B
Rationale: The visceral serous pericardium is the inner layer of the pericardial sac, adhering to the heart’s surface, and is synonymous with the epicardium (B). The endocardium (A) lines the heart chambers, fibrous pericardium (C) is the outer tough layer, and myocardium (D) is the muscular layer.
Question 4 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 5 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.