ATI RN
Cardiovascular System Questions and Answers Questions
Question 1 of 5
Insufficient vitamin B₁₂ in the body may result in:
Correct Answer: B
Rationale: Vitamin B₁₂ deficiency causes pernicious anemia due to impaired RBC maturation (often from lack of intrinsic factor). Nutritional anemia is broader, aplastic anemia affects marrow, and embolus is unrelated.
Question 2 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 3 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 4 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.
Question 5 of 5
What ECG wave accompanies ventricular depolarization?
Correct Answer: B
Rationale: The QRS complex (B) represents ventricular depolarization on an ECG. P wave (A) is atrial depolarization, T wave (C) is ventricular repolarization.