A client is admitted with heart failure (HF) and left ventricular hypertrophy. Which intervention is most likely to avert development of cardiomegaly and improve myocardial contractility?
Teach about compliance to reduce blood pressure.
Provide rest periods and portable oxygen.
Maintain continuous monitoring of heart rate and rhythm.
Administer nitroglycerin daily.
The Correct Answer is A
A. This is the most likely intervention to avert cardiomegaly and improve myocardial contractility. By reducing blood pressure, the heart doesn't have to work as hard to pump blood, which can help prevent the heart from enlarging (cardiomegaly) and improve its ability to contract effectively.
B. While rest and oxygen can help manage symptoms of heart failure, they do not directly address the underlying issue of increased cardiac workload and hypertrophy.
C. Monitoring heart rate and rhythm is important for assessing the patient's condition, but it does not prevent cardiomegaly or improve contractility.
D. Nitroglycerin is used to treat acute symptoms of heart failure, such as chest pain, but it is not a long- term solution for preventing cardiomegaly or improving contractility.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. The surgical consent form is crucial for ensuring that the client is informed about the procedure and agrees to it. While it's critical for legal and ethical reasons, this issue can often be resolved relatively quickly by having the client sign the form or addressing it with the surgeon.
B. A pulse oximeter reading of 96% indicates that the client's oxygen saturation is within a generally acceptable range (normal is usually 95% to 100%). This reading suggests that the client's oxygen levels are adequate and typically would not require immediate action.
C. The absence of a preoperative chest x-ray report can be significant, especially if the client has underlying respiratory or cardiac conditions. However, the immediate need for action depends on the urgency and the reason the x-ray was ordered.
D. A serum potassium level of 2.8 mEq/L is critically low. The normal reference range is 3.5 to 5 mEq/L. Hypokalemia (low potassium) can lead to severe complications, including cardiac arrhythmias and muscle weakness, which can significantly impact the client's ability to safely undergo surgery. This condition requires immediate attention to correct the electrolyte imbalance before proceeding with the surgical procedure.
Correct Answer is A
Explanation
A. This is the safest and most accurate option. Insulin dosing is critical, and an overdose can lead to hypoglycemia, a serious condition. By discarding the incorrect dose and starting anew, the nurse ensures the client receives the precise amount of insulin prescribed.
B. This option is inefficient and increases the risk of error. It involves using two different methods for insulin administration, which can lead to confusion and potential mistakes. Additionally, it doesn't address the initial error of dialing the incorrect dose.
C. This option is extremely dangerous. Administering more insulin than prescribed can lead to severe hypoglycemia. Wasting the remaining four units does not rectify the primary issue of the overdose.
D. Insulin pens are designed for precision. Altering the dialed dose after an error can compromise the accuracy of the insulin delivery system. This method is not reliable and can lead to inaccurate dosing.
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