A physician orders regular insulin 10 units I.V. along with 50 ml of dextrose 50% for a client with acute renal failure newly admitted to the critical care unit. What electrolyte imbalance is this client most likely experiencing?
Hypernatremia
Hyperglycemia
Hypercalcemia
Hyperkalemia
The Correct Answer is B
A. Hypernatremia: This condition involves elevated sodium levels, which is not directly addressed by the insulin and dextrose order.
B. Hyperglycemia: While dextrose can exacerbate hyperglycemia, the order of insulin and dextrose is not for managing hyperglycemia but for another purpose.
C. Hypercalcemia: This condition involves elevated calcium levels and is not related to the use of insulin and dextrose.
D. Hyperkalemia: The administration of regular insulin with dextrose is often used to manage hyperkalemia. Insulin helps shift potassium into cells, while dextrose prevents hypoglycemia resulting from the insulin.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Serum glucose of 118 mg/dL: This value is slightly above the normal range but not critically elevated; it does not typically require immediate notification to the surgeon.
B. Blood urea nitrogen (BUN) of 16 mg/dL: This BUN level is within the normal range and does not suggest an immediate concern for surgical risk.
C. Serum sodium of 130 mEq/L: A serum sodium level of 130 mEq/L indicates hyponatremia, which can lead to serious complications including neurological symptoms and should be addressed prior to surgery.
D. Serum potassium of 3.9 mEq/L: This level is within the normal range and does not require immediate action related to surgery.
Correct Answer is A
Explanation
A. Hypocalcemia: Hypocalcemia can cause signs such as muscle twitching, spasms, or tetany, which could be observed in the upper extremity and might be noted during a blood pressure measurement.
B. Hypokalemia: While hypokalemia can cause muscle weakness and cramping, it is less directly associated with specific upper extremity signs compared to hypocalcemia.
C. Hypophosphatemia: This generally affects energy levels and muscle function but is less commonly associated with immediate and visible upper extremity signs.
D. Hyponatremia: This primarily affects fluid balance and mental status, and is less likely to present with specific upper extremity findings during a blood pressure check.
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