ATI RN
Cardiovascular System Assessment Questions Questions
Question 1 of 5
The two tubes that eventually fuse to form the heart are referred to as the
Correct Answer: B
Rationale: Endocardial tubes (B) fuse to form the primitive heart tube in the embryo.
Question 2 of 5
A slow heart rate is known as:
Correct Answer: A
Rationale: Bradycardia refers to a slow heart rate, typically below 60 beats per minute in adults. Tachycardia is a fast heart rate (above 100 bpm), while 'hypocardia' and 'hypercardia' are not standard medical terms related to heart rate.
Question 3 of 5
The following statements concern carotid sinus discharge. Which combination is correct? A. No discharge when carotid sinus perfusion pressure was below 30 mm Hg. B. Linear increase in discharge frequency when carotid sinus perfusion pressure was gradually increased from 70 to 110 mm Hg. C. Increase in discharge frequency was more prominent in greater pulsatile changes of carotid sinus pressure keeping the mean pressure identical. D. Increase in discharge was more prominent in the falling phase of pulsatile change.
Correct Answer: B
Rationale: The carotid sinus baroreceptors detect blood pressure changes. A is true (below ~30 mmHg, discharge ceases), B is true (discharge increases linearly in the 70-110 mmHg range), C is true (pulsatile pressure enhances sensitivity), but D is false (rising phase typically triggers more discharge). B (B and C) is correct.
Question 4 of 5
A 68 year-old client is admitted for mitral valve replacement surgery. The client has a history of mitral valve regurgitation and mitral stenosis since her teenage years. During the admission assessment, the nurse should ask the client if as a child she had?
Correct Answer: C
Rationale: Rheumatic fever, often following streptococcal infection, is a common cause of mitral valve damage (stenosis and regurgitation) in youth, leading to long-term issues. Other conditions are unrelated to valvular pathology.
Question 5 of 5
A patient who underwent a percutaneous, transluminal coronary angioplasty four weeks ago has a subsequent ejection fraction of 30%. The patient returns for a follow-up visit. Examination reveals lungs that are clear on auscultation and slight pedal edema. The patient reports a 5 lb (2.27 kg) weight gain over the past two days. The cardiac-vascular nurse's initial action is to:
Correct Answer: C
Rationale: A 5 lb weight gain in two days with an ejection fraction of 30% (indicating heart failure) and pedal edema suggests fluid retention, a potential emergency. Notifying the physician is urgent for intervention, outweighing documentation (A), compliance checks (B), or scan review (D).