ATI RN
Cardiovascular System Questions Questions
Question 1 of 5
In a healthy young adult, what happens to cardiac output when heart rate increases above 160 bpm?
Correct Answer: B
Rationale: Above ~160 bpm, diastolic filling time shortens, reducing stroke volume and cardiac output (B).
Question 2 of 5
The nurse is caring for a client admitted with severe rectal bleeding who is receiving warfarin (Coumadin) therapy. Which of the following interventions should have priority in the plan of care?
Correct Answer: C
Rationale: A patent 18-gauge IV (C) is the priority for potential blood transfusion in severe bleeding. Other interventions (A, B, D) follow stabilization.
Question 3 of 5
Lymph from the lower half of the body drains into:
Correct Answer: C
Rationale: Lymph from the lower body drains into the thoracic duct via the cisterna chyli, which then empties into the left subclavian vein. The right lymphatic duct drains the upper right quadrant, and 'tracheal duct' is not a lymphatic structure.
Question 4 of 5
A client's parents ask the nurse, 'What is the prognosis of myocarditis?' The most appropriate response by the nurse is?
Correct Answer: B
Rationale: Myocarditis (heart muscle inflammation) often resolves spontaneously with rest and supportive care, especially if viral. Surgical options (A, C, D) are not typical primary treatments unless complications like severe heart failure arise.
Question 5 of 5
Examination of a patient in a supine position reveals distended jugular veins from the base of the neck to the angle of the jaw. This finding indicates:
Correct Answer: B
Rationale: Distended jugular veins in a supine position suggest increased central venous pressure (CVP), often due to right heart failure or fluid overload, as blood backs up into the venous system. Decreased venous return would collapse veins, and C and D are less directly indicated by this sign alone.