ATI RN
Cardiovascular System Anatomy Questions and Answers Questions
Question 1 of 5
Which of the following is not a condition of late diastole?
Correct Answer: C
Rationale: In late diastole, the atria and ventricles are relaxed, AV valves are open, and ventricles fill with blood from the atria. The aortic valve, however, is closed during diastole to prevent backflow from the aorta into the ventricle.
Question 2 of 5
A client reports during a health history that a diagnosis of mitral valve prolapse has been made. The nurse knows that this valve prevents backflow of blood from the:
Correct Answer: C
Rationale: The mitral valve lies between the left atrium and ventricle and thus prevents ventricular backflow to the atrium. The tricuspid valve is between the right atrium and ventricle. The pulmonic valve is between the right ventricle and pulmonary artery. The aortic valve is between the left ventricle and the aorta. (Source: Document, Pretest Answer 4, p. 76)
Question 3 of 5
No granules are present in a:
Correct Answer: B
Rationale: Lymphocytes lack visible granules in their cytoplasm under a microscope, unlike neutrophils, eosinophils, and basophils, which are granulocytes with specific staining granules (neutrophils: neutral, eosinophils: red, basophils: blue).
Question 4 of 5
Which of the following is not a plasma protein?
Correct Answer: D
Rationale: Albumin, globulins, and fibrinogen are plasma proteins synthesized by the liver. Platelets are cellular fragments, not proteins, involved in clotting.
Question 5 of 5
The most plentiful plasma protein is:
Correct Answer: A
Rationale: Albumins (~60% of plasma proteins) are the most abundant, maintaining osmotic pressure. Globulins (~35%) and fibrinogen (~4%) are less plentiful. ‘Hemogen’ is not a recognized term.