ATI RN
Cardiovascular System Questions and Answers Questions
Question 1 of 5
Which does NOT help to control hemostasis?
Correct Answer: D
Rationale: Prothrombinase production (D) drives clotting, not control.
Question 2 of 5
Which of the following statements is true?
Correct Answer: B
Rationale: One umbilical vein (B) carries oxygenated blood from placenta to fetus; two arteries carry deoxygenated blood to placenta (not lungs, C).
Question 3 of 5
Most blood enters the ventricle during
Correct Answer: B
Rationale: Most ventricular filling (~70-80%) occurs passively during atrial diastole (B) when AV valves are open.
Question 4 of 5
Upon finding a client in cardiac arrest, the nurse should administer which of the following drugs first?
Correct Answer: B
Rationale: Epinephrine (B) is the first drug in ACLS for cardiac arrest to stimulate cardiac activity. Atropine (A) treats bradycardia, lidocaine (C) arrhythmias, atenolol (D) hypertension.
Question 5 of 5
A client has been taking warfarin sodium (Coumadin) for the prevention of deep vein thrombosis. When the home care nurse arrives for a weekly visit, the client reports having been using aspirin (acetylsalicylic acid) daily for arthritic pain since hearing a commercial on television bolstering its benefits. Which of the following is the most appropriate response by the nurse, based on an understanding of the effect of combining Coumadin with aspirin?
Correct Answer: B
Rationale: Warfarin and aspirin (B) both increase bleeding risk (anticoagulant + antiplatelet). Other options (A, C, D) are incorrect and unsafe.