The nurse prepares to administer regular insulin to a diabetic client whose blood glucose level is 950.
The provider prescribed regular insulin 1 unit/hr intravenously.
Regular insulin is available in a bag containing 10 units of regular insulin in 100 mL solution.
How many milliliters per hour should the nurse set the intravenous pump? Round answer to the nearest whole number.
The Correct Answer is ["10"]
Step 1 is (1 unit ÷ 10 units) × 100 mL.
Step 2 is 0.1 × 100 mL.
Step 3 is 10 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Managing diabetic ketoacidosis involves addressing hyperglycemia, ketosis, and metabolic acidosis. Applying knowledge of insulin pharmacokinetics is essential, specifically identifying which insulin preparation is suitable for intravenous administration to rapidly reduce blood glucose and halt ketone production in emergencies.
Choice A rationale
Regular insulin is a short-acting preparation and the only insulin that can be administered intravenously. It rapidly lowers blood glucose and reverses ketoacidosis by inhibiting lipolysis. Onset is 30 to 60 minutes when given subcutaneously.
Choice B rationale
Insulin detemir is a long-acting basal insulin analog with a slow, steady release profile over 24 hours. It lacks a peak and cannot be given intravenously, making it inappropriate for the acute management of diabetic ketoacidosis.
Choice C rationale
NPH insulin is an intermediate-acting insulin containing protamine to delay absorption. It has an onset of 1 to 2 hours and is used for maintenance, not for the rapid correction of life-threatening metabolic acidosis.
Choice D rationale
Insulin glargine is a long-acting basal insulin that provides a constant concentration for 24 hours. It is used for long-term glycemic control and cannot be administered intravenously for emergent stabilization of diabetic ketoacidosis.
Correct Answer is A
Explanation
Identifying life-threatening complications in immunocompromised patients is critical. Knowledge of the systemic inflammatory response syndrome and hemodynamic instability in neutropenic patients must be applied to differentiate between oncological emergencies like sepsis, tumor lysis syndrome, and superior vena cava obstruction.
Choice A rationale
Sepsis in neutropenic patients often leads to septic shock, characterized by hypotension (80/40 mm Hg) and tachycardia (142/min). The high fever and rapid breathing indicate a systemic response to infection and inadequate tissue perfusion.
Choice B rationale
Tumor lysis syndrome results from rapid cell destruction, causing hyperkalemia, hyperuricemia, and renal failure. While it is an oncological emergency, it does not typically present with the acute hemodynamic collapse and profound hypotension seen in this scenario.
Choice C rationale
While chemotherapy induces fatigue, it does not cause severe hypotension, high fever, or extreme tachycardia. These findings represent a critical physiological crisis rather than the expected side effects of exhaustion or malaise during oncological treatment.
Choice D rationale
Superior vena cava syndrome involves obstruction of blood flow from the upper body, causing facial edema, neck vein distention, and dyspnea. It does not primarily present with acute fever, sepsis symptoms, or profound hypotension.
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