ATI RN
Cardiovascular System Questions and Answers Questions
Question 1 of 5
Among the blood tests ordered was a differential count; this test:
Correct Answer: C
Rationale: A differential count measures the percentage of each type of leukocyte (e.g., neutrophils, lymphocytes) per 100 white blood cells, assessing immune status. RBC and platelet counts are separate tests.
Question 2 of 5
Which blood constituent adheres to any rough surface?
Correct Answer: D
Rationale: Platelets adhere to rough surfaces (e.g., damaged endothelium) to form a plug, initiating hemostasis. Thromboplastin is a protein, fibrinogen forms fibrin, and leukocytes don’t primarily adhere.
Question 3 of 5
The nurse is discharging a client being treated for hyperlipidemia and hypertension. The client smokes occasionally to decrease stress from work and has just been diagnosed with coronary artery disease. Which of the following client education topics should the nurse include? Select all that apply.
Correct Answer: A
Rationale: Statins manage cholesterol (A), quitting smoking prevents vessel damage (B), and stress management (E) reduces coronary artery disease (CAD) risk. Stopping BP meds (C) worsens CAD, and decreasing activity (D) is counterproductive; exercise helps. (Source: Document, p. 5-6; adapted for single-answer format, multi-select noted)
Question 4 of 5
Blood pressure is usually expressed in units of millimetres of mercury (mmHg) as:
Correct Answer: B
Rationale: Blood pressure is expressed as systolic over diastolic (B, e.g., 120/80 mmHg), where systolic is peak pressure (ventricular contraction) and diastolic is resting pressure. C is pulse pressure, and D/E are not standard formats.
Question 5 of 5
Identify the heart valve that is also called the mitral valve.
Correct Answer: B
Rationale: The bicuspid valve (B), between the left atrium and ventricle, is also called the mitral valve. Aortic (A) and pulmonary (C) are semilunar valves, and tricuspid (D) is on the right side.