What is the primary pathophysiological reason for performing Coronary Artery Bypass Surgery?
To reduce overall contractility of the heart muscle.
To reduce plaque buildup in the carotid artery.
To increase oxygen supply to the heart muscle.
To increase the myocardial workload.
The Correct Answer is C
Choice A rationale
Reducing the overall contractility of the heart muscle is not the primary reason for performing Coronary Artery Bypass Surgery (CABG)4. In fact, reducing the contractility of the heart muscle could potentially decrease the heart’s ability to pump blood effectively.
Choice B rationale
Reducing plaque buildup in the carotid artery is not the primary reason for performing CABG4. While plaque buildup in the carotid artery can lead to serious conditions such as stroke, CABG is specifically performed to bypass blocked coronary arteries, not carotid arteries.
Choice C rationale
Increasing the oxygen supply to the heart muscle is the primary reason for performing CABG4. When coronary arteries become blocked or narrowed due to plaque buildup, the heart muscle may not receive enough oxygen-rich blood. CABG is performed to create a new route, or bypass, around the blocked artery, which improves blood flow and oxygen supply to the heart muscle.
Choice D rationale
Increasing the myocardial workload is not the primary reason for performing CABG4. In fact, increasing the workload of the heart could potentially exacerbate heart disease and lead to complications such as heart failure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Recurring chest pain can be a symptom of a serious condition such as a heart attack, which can occur if a blood clot forms in a vein deep inside the body, breaks off, and travels to the heart.
This is a potential complication of Deep Vein Thrombosis (DVT) and other vascular issues. Therefore, it’s important for the nurse to inquire about recurring chest pain in a patient with a past history of DVT and other vascular issues.
Choice B rationale
A peptic ulcer is a sore that develops on the lining of the stomach, upper small intestine, or lower esophagus. While peptic ulcers can cause discomfort and other symptoms, they are not typically associated with DVT or other vascular issues. Therefore, while it’s always important for the nurse to have a complete understanding of a patient’s health history, inquiring about a peptic ulcer may not be directly relevant to a patient with a past history of DVT and other vascular issues.
Choice C rationale
An aneurysm is a bulge or ballooning in the wall of an artery. Aneurysms can occur in any artery in the body, and they can be life-threatening if they rupture or dissect (tear)3. While aneurysms can be associated with certain vascular diseases, they are not typically associated with DVT3. Therefore, while it’s important for the nurse to be aware of a patient’s complete health history, inquiring about an aneurysm may not be directly relevant to a patient with a past history of DVT.
Choice D rationale
Rheumatoid arthritis is an autoimmune disease that causes inflammation in the joints. While it can cause a variety of symptoms and complications, it is not typically associated with DVT or other vascular issues. Therefore, while it’s always important for the nurse to have a complete understanding of a patient’s health history, inquiring about rheumatoid arthritis may not be directly relevant to a patient with a past history of DVT and other vascular issues.
Correct Answer is B
Explanation
Choice A rationale
Digoxin slows the heart rate and increases the force of heart contractions, which can be beneficial in heart failure. However, if the pulse is below 60 beats/min, taking digoxin could further slow the heart rate and potentially lead to bradycardia.
Choice B rationale
Nausea can be a side effect of digoxin and hydrochlorothiazide. If the patient develops nausea, they should notify their healthcare provider as this could indicate that the medication dose needs adjustment.
Choice C rationale
Hydrochlorothiazide can cause the body to lose potassium, so limiting dietary intake of potassium could potentially lead to hypokalemia, a condition characterized by low potassium levels in the blood.
Choice D rationale
Taking hydrochlorothiazide at bedtime could potentially lead to nocturia, which is the need to wake up at night to urinate. This could disrupt the patient’s sleep.
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