The charge nurse has stated a client has hyperkalemia and needs cardiac monitoring. The nurse noted which of following lab values?
Sodium 148
Potassium 3.1
Sodium 130
Potassium 5.7
The Correct Answer is D
A. Sodium 148: This represents mild hypernatremia, but sodium levels are not the primary concern for cardiac monitoring.
B. Potassium 3.1: This is hypokalemia (low potassium), not hyperkalemia.
C. Sodium 130: This represents hyponatremia, which can cause neurological symptoms, not hyperkalemia.
D. Potassium 5.7: Hyperkalemia is defined as K⁺ >5.0 mEq/L. Levels above 5.5 can cause dangerous cardiac dysrhythmias, requiring ECG monitoring.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
B. Liver: Grapefruit juice inhibits CYP3A4 enzymes in the liver, which metabolize many drugs (e.g., statins, calcium channel blockers). This inhibition can lead to increased drug levels and toxicity.
A. Gall bladder – The gall bladder stores bile but does not metabolize drugs.
C. Kidney – The kidneys excrete drugs, but grapefruit juice does not significantly impact renal metabolism.
D. Small bowel – Some drug metabolism occurs in the intestines, but grapefruit juice primarily affects liver enzymes.
Correct Answer is D
Explanation
A. Sodium 148: This represents mild hypernatremia, but sodium levels are not the primary concern for cardiac monitoring.
B. Potassium 3.1: This is hypokalemia (low potassium), not hyperkalemia.
C. Sodium 130: This represents hyponatremia, which can cause neurological symptoms, not hyperkalemia.
D. Potassium 5.7: Hyperkalemia is defined as K⁺ >5.0 mEq/L. Levels above 5.5 can cause dangerous cardiac dysrhythmias, requiring ECG monitoring.
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