A patient who has been scheduled for an exercise stress electrocardiogram asks why this test is needed. Which of the following is the nurse's best response?
It determines a target heart rate.
It identifies how much more exercise is needed.
It shows how the heart performs during exercise.
It can predict whether a heart attack may occur.
The Correct Answer is C
Choice A reason: Determining a target heart rate is not the primary purpose of an exercise stress electrocardiogram; it is more about observing the heart's function under stress³.
Choice B reason: Identifying the need for more exercise is not the direct outcome of this test; it is used to assess cardiovascular response to stress³.
Choice C reason: The test is designed to show how the heart performs during exercise, which can help diagnose conditions like coronary artery disease³.
Choice D reason: Predicting a heart attack is not the purpose of an exercise stress electrocardiogram; rather, it helps to identify heart conditions that may lead to complications if left untreated³.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A Reason:In left HF, the left ventricle fails to pump blood forward efficiently, leading to congestion in the pulmonary circulation. As a result, blood backs up into the left atrium, causing symptoms such as pulmonary edema, shortness of breath, and fatigue. Left atrial enlargement may occur due to this backup of blood.
Choice B Reason:In left HF, blood does not back up from the left ventricle. Instead, the left ventricle itself is weakened and unable to propel blood effectively into the systemic circulation.
Choice C Reason:Blood backing up from the right ventricle is associated with right heart failure, not left HF. Right HF occurs when the right ventricle fails to pump blood efficiently, leading to congestion in the systemic venous circulation.
Choice D Reason:Blood backing up from the right atrium is also related to right heart failure. In left HF, the primary issue is congestion in the pulmonary circulation due to left ventricular dysfunction.
Correct Answer is ["A","C","D","E"]
Explanation
Choice A reason: An exercise stress test can help diagnose coronary artery disease by measuring the heart's ability to respond to external stress in a controlled clinical environment.
Choice B reason: Troponin I is a blood test that measures the levels of troponin T or troponin I proteins in the blood. These proteins are released when the heart muscle has been damaged, such as in a heart attack, which is a common complication of coronary artery disease.
Choice C reason: Cardiac computed tomography (CT) for calcium scoring is a non-invasive way of obtaining information about the presence, location, and extent of calcified plaque in the coronary arteries.
Choice D reason: Radioisotope imaging, such as a nuclear stress test, can show how blood moves to the heart muscle at rest and during stress, helping to diagnose coronary artery disease.
Choice E reason: Angiography involves using X-rays to see your body's blood vessels. Coronary angiography is specifically used to see if your coronary arteries are blocked or narrowed, where they supply blood to your heart.
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