The nurse identifies that the goal of decreasing the cardiac workload for a client receiving atenolol 25 mg PO BID for unstable angina is met when the client has:
An increase in urine output.
Less dyspnea with activity.
A blood pressure of 120/80 mmHg.
A heart rate of 65 per minute.
The Correct Answer is D
Choice a reason:
An increase in urine output can be a sign of improved kidney function or the effect of medications, but it is not a direct indicator of reduced cardiac workload. Atenolol, a beta-blocker, primarily reduces the heart rate and myocardial oxygen demand, not urine output.
Choice b reason:
Less dyspnea with activity suggests improved cardiovascular efficiency, but it is not a specific measure of cardiac workload. Dyspnea can be influenced by respiratory conditions and is not solely determined by cardiac function.
Choice c reason:
A blood pressure of 120/80 mmHg is considered optimal for most adults and indicates good control of hypertension. However, it does not specifically reflect the cardiac workload, which is more directly affected by heart rate and myocardial oxygen demand.
Choice d reason:
A heart rate of 65 per minute is a clear indicator that atenolol is effective in reducing cardiac workload. Atenolol decreases the heart rate, which in turn reduces myocardial oxygen demand and the overall workload on the heart. This is particularly important for patients with unstable angina, where reducing the heart's workload can prevent angina attacks and potential myocardial infarction.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A Reason
Hyperreflexia refers to an overactive or overresponsive reflexes, which is a neurological condition and not directly related to the behaviors described. It is typically seen in conditions affecting the central nervous system and is not characterized by the inability to wait turns or interrupting conversations.
Choice B Reason
Defiance implies a conscious choice to resist authority or rules, which may not necessarily be the case here. While children with behavioral issues may exhibit defiant behaviors, the symptoms described are more indicative of a lack of impulse control rather than a deliberate choice to defy.
Choice C Reason
Inattention is a component of several behavioral and cognitive disorders, including ADHD. However, the behaviors described—blurting out answers, inability to wait for turns, and interrupting others—are more specifically associated with impulsivity rather than inattention alone.
Choice D Reason
Impulsivity is the tendency to act on a whim, displaying behavior characterized by little or no forethought, reflection, or consideration of the consequences. The behaviors described—such as blurting out answers and interrupting others—are classic signs of impulsivity, which is often seen in conditions like ADHD.
Correct Answer is A
Explanation
Choice A Reason:
Smoking, hypertension, obesity, diabetes, and hyperlipidemia are all well-established risk factors for heart disease. Smoking damages the lining of the arteries, leading to a buildup of fatty material which narrows the artery. Hypertension can cause hardening and thickening of the arteries, which can lead to a heart attack or stroke. Obesity increases the likelihood of high blood pressure, high cholesterol levels, and diabetes, all of which are risk factors for heart disease. Diabetes increases the risk of heart disease significantly, as high blood sugar levels can damage blood vessels and the nerves that control the heart. Hyperlipidemia, particularly high levels of LDL cholesterol, can lead to plaque buildup in the arteries, increasing the risk of heart attack or stroke.
Choice B Reason:
Family history is a non-modifiable risk factor for heart disease, as genetics can play a role in an individual's likelihood of developing heart conditions. Stress can contribute to heart disease risk factors such as hypertension and is associated with other unhealthy behaviors. Hypertension and age are both significant risk factors; the risk of heart disease increases with age and with sustained high blood pressure.
Choice C Reason:
Alcohol consumption in excess can lead to high blood pressure, heart failure, or stroke. Obesity, diabetes, and stress are all risk factors as previously mentioned. Hyperlipidemia is also a modifiable risk factor that can be managed through diet, exercise, and medication.
Choice D Reason:
Personality type itself is not a direct risk factor for heart disease, but certain personality traits can lead to stress, which is a risk factor. Hyperlipidemia, diabetes, and smoking are all direct risk factors for heart disease as they contribute to the development of cardiovascular conditions.
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