ATI RN
Cardiovascular System Test Questions Questions
Question 1 of 5
Based on an understanding of nitroglycerin, the nurse administers it for which of the following reasons to a client with angina?
Correct Answer: D
Rationale: Nitroglycerin (D) dilates veins, reducing preload and oxygen demand, relieving angina. It doesn’t increase afterload (A), preload (B), or constrict arteries (C).
Question 2 of 5
Oxygen is carried in the blood bonded to:
Correct Answer: A
Rationale: Oxygen is primarily transported in the blood bound to hemoglobin in red blood cells (about 98-99%). Bicarbonate ions carry CO₂, 'protein' is too vague, and carbonic acid is a CO₂ transport intermediate, not oxygen.
Question 3 of 5
How many pillows do you use at night to sleep comfortably?' is a question for the nurse to ask a client with heart issues because it assesses for?
Correct Answer: B
Rationale: Asking about pillow use assesses orthopnea, a symptom of heart failure where patients need elevation to breathe comfortably at night due to pulmonary congestion. Other options assess different aspects but not specifically tied to this question.
Question 4 of 5
A client is admitted with the diagnosis of Myocardial Infarction. Which of the following lab values would be consistent with this diagnosis?
Correct Answer: B
Rationale: Elevated CPK, especially the MB fraction, is a key marker of myocardial infarction due to cardiac muscle damage releasing this enzyme. Other values may be abnormal in other contexts but are not specific to MI.
Question 5 of 5
While the cardiac-vascular nurse preceptor is orienting a graduate nurse on the telemetry unit, a patient experiences cardiac arrest. Which action by the preceptor, during the emergency cardiac care procedure, facilitates the graduate nurse's competence and professional development?
Correct Answer: D
Rationale: Involving the graduate nurse in resuscitation with a basic task (e.g., compressions) builds hands-on skills and confidence in a real scenario, enhancing competence. A delays learning, B removes them from care, and C may exceed initial skill level.