The nurse is caring for a client admitted with unstable angina. The laboratory result for the initial troponin I is elevated in this client. The nurse should recognize what implication of this assessment finding?

This result indicates muscle injury but does not specify the source.

Because the client has a history of unstable angina, this is a poor indicator of myocardial injury.

This is only an accurate indicator of myocardial damage when it reaches its peak in 24 hours.

This is an accurate indicator of myocardial injury.

Answer and Explanation

The Correct Answer is D

A. This result indicates muscle injury but does not specify the source.

This statement is partly correct. An elevated troponin I level does indicate muscle injury, specifically damage to the heart muscle. However, troponin I is highly specific to cardiac muscle, so an elevated level would indeed specify the source as cardiac or myocardial injury.

B. Because the client has a history of unstable angina, this is a poor indicator of myocardial injury.

This statement is incorrect. A history of unstable angina does not diminish the significance of an elevated troponin I level. In fact, unstable angina is itself a serious condition that can lead to myocardial injury or heart attack, and an elevated troponin I level in this context indicates ongoing or recent myocardial damage.

C. This is only an accurate indicator of myocardial damage when it reaches its peak in 24 hours.

This statement is not entirely accurate. While it is true that troponin I levels may continue to rise and peak within 12-24 hours after the onset of myocardial injury, an elevated troponin I level at any point is still a significant indicator of myocardial damage. It's essential to recognize elevated troponin I levels promptly to initiate appropriate interventions and monitor the client's cardiac status closely.

D. This is an accurate indicator of myocardial injury.

This statement is correct. An elevated troponin I level is a highly sensitive and specific marker of myocardial injury. It indicates damage to the heart muscle, which can occur due to conditions like unstable angina, heart attack (myocardial infarction), myocarditis, or other cardiac issues. Therefore, recognizing an elevated troponin I level in a client with unstable angina is crucial for proper management and further evaluation.

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Correct Answer is B

Explanation

A. "I will wear layered clothing when walking outside in winter": This statement shows an understanding of the need to dress appropriately for weather conditions, which is important in managing symptoms during physical activity.

B. "I will walk early in the morning when it is hot outside": This statement indicates a lack of understanding regarding the ideal timing for outdoor activities, especially in hot weather. Exercising during the cooler parts of the day (such as early morning or late evening) is recommended to avoid heat-related stress and potential exacerbation of cardiovascular symptoms.

C. "If I get shortness of breath, I should slow down a bit": This statement demonstrates an understanding of monitoring symptoms during exercise and adjusting activity levels accordingly, which is an important aspect of managing coronary artery disease.

D. "My exercise intensity should not exceed my ability to talk": This statement reflects an understanding of the recommended exercise intensity level based on the ability to talk comfortably during physical activity, known as the "talk test."

A. Increasing fluids to maintain BP B. Taking medication first thing in the morning C. Stopping medication if dizziness persists D. Rising slowly from a lying or sitting position

Correct Answer is D

Explanation

A. Increasing fluids to maintain BP: While staying well-hydrated is generally beneficial for overall health and blood pressure management, increasing fluids is not the primary intervention for dizziness associated with alpha-adrenergic blockers. Alpha-blockers can cause orthostatic hypotension, which may lead to dizziness upon standing, especially if rising quickly.

B. Taking medication first thing in the morning: Taking medication in the morning is a common recommendation for many medications, including some antihypertensive drugs. However, for alpha-adrenergic blockers that can cause orthostatic hypotension, timing of medication administration is not the primary concern in addressing dizziness.

C. Stopping medication if dizziness persists: Abruptly stopping medication without consulting a healthcare provider is not recommended, especially for antihypertensive medications. It's important for clients to follow their prescribed treatment plan and communicate any side effects or concerns to their healthcare provider for appropriate management.

D. Rising slowly from a lying or sitting position: This is the correct emphasis for the nurse. Alpha-adrenergic blockers can cause orthostatic hypotension, a drop in blood pressure upon standing, which can lead to dizziness or lightheadedness. To minimize this risk, the client should be advised to rise slowly from lying down or sitting to standing positions. This gradual movement helps the body adjust to changes in blood pressure more effectively.

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The nurse is caring for a client admitted with unstable angina. The laboratory result for the initial troponin I is elevated in this client. The nurse should recognize what implication of this assessment finding?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is B

Explanation

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Correct Answer is D

Explanation

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