When the nurse is reviewing a patient's daily laboratory test results, which of the following potassium levels should the nurse report to the healthcare provider to reduce the risk of digoxin (Lanoxin) toxicity?

Potassium 5.5 mEq/L

Potassium 3.8 mEq/L

Potassium 4.5 mEq/L

Potassium 2.9 mEq/L

Answer and Explanation

The Correct Answer is D

Choice A reason: A high potassium level can increase the risk of digoxin toxicity. The normal range for potassium is typically 3.5 to 5.0 mEq/L, so a level of 5.5 mEq/L should be reported.

Choice B reason: A potassium level of 3.8 mEq/L is within the normal range and would not typically increase the risk of digoxin toxicity.

Choice C reason: A potassium level of 4.5 mEq/L is within the normal range and would not typically increase the risk of digoxin toxicity.

Choice D reason: A low potassium level can also increase the risk of digoxin toxicity, but the question asks for the result that does not increase the risk, making 2.9 mEq/L incorrect in this context.

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Correct Answer is A

Explanation

Choice A reason: Directly asking the client about suicidal plans is a critical step in assessing risk and determining the need for immediate intervention.

Choice B reason: While involving the family is important, it does not address the immediate risk the client may pose to herself.

Choice C reason: Recognizing the statement as a manipulation attempt is inappropriate; all expressions of suicidal ideation should be taken seriously.

Choice D reason: Allowing the client to rest does not address the immediate risk of suicide and the need for urgent assessment and intervention.

A. Creatine kinase B. Myoglobin C. Troponin D. Serum B-type natriuretic peptide (BNP)

Correct Answer is D

Explanation

Choice A reason: Creatine kinase can be elevated in heart failure but is not as specific as BNP for this condition.

Choice B reason: Myoglobin is a muscle protein that can be released into the bloodstream after muscle injury, including heart muscle, but it is not as specific for heart failure as BNP.

Choice C reason: Troponin is a marker of heart muscle injury and can be elevated in heart failure, but BNP is more directly related to the diagnosis and severity of heart failure.

Choice D reason: Serum B-type natriuretic peptide (BNP) is specifically released by the ventricles in response to excessive stretching of heart muscle cells, making it a key marker for heart failure. Elevated levels of BNP are directly correlated with the severity of heart failure and are important for both diagnosis and management.

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When the nurse is reviewing a patient's daily laboratory test results, which of the following potassium levels should the nurse report to the healthcare provider to reduce the risk of digoxin (Lanoxin) toxicity?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is A

Explanation

The nurse reviews the lab test results of a patient who has heart failure (HF). Which test result would be most important for the nurse to report to the healthcare provider (HCP)?

Correct Answer is D

Explanation

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