A patient with diabetes is starting on insulin therapy.
Which type of insulin will the nurse discuss using for mealtime coverage?
Lispro (Humalog).
Glargine (Lantus).
Detemir (Levemir).
NPH (Humulin N).
The Correct Answer is A
Choice A rationale
Lispro (Humalog) is a rapid-acting insulin analog designed for mealtime glucose control. It begins action within 15 minutes, peaks in 1 hour, and lasts 2 to 4 hours. Its quick onset matches postprandial glucose spikes, enhancing glycemic control during meals and preventing hyperglycemia from carbohydrate intake.
Choice B rationale
Glargine (Lantus) is a long-acting basal insulin with no peak and prolonged action. It does not target mealtime spikes but provides steady glucose control over 24 hours. Its slow onset and constant release profile are unsuitable for immediate postprandial glucose management.
Choice C rationale
Detemir (Levemir) is a long-acting basal insulin, similar to glargine, with extended action for baseline glucose control. It lacks the rapid onset needed for mealtime management, making it inappropriate for postprandial hyperglycemia control, as observed in Lispro efficacy.
Choice D rationale
NPH (Humulin N) is an intermediate-acting insulin with delayed onset and peak activity. It supports baseline glucose regulation but fails to address mealtime glucose control promptly. Its time profile does not align with the immediate needs of postprandial hyperglycemia management.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Strict monitoring of intake and output in CHF patients with furosemide therapy prevents fluid overload and underhydration. Foley catheter placement accurately quantifies urine output, crucial in critically ill patients with diuretic-induced fluid shifts. This ensures precise fluid balance adjustments, improving patient outcomes.
Choice B rationale
Omitting Foley catheter placement in CHF patients risks inaccurate fluid balance monitoring. Furosemide causes frequent, unpredictable urination, complicating intake-output tracking without direct measurement. This approach undermines effective management of diuretic therapy and fluid overload prevention in critical settings. .
Correct Answer is B
Explanation
Choice A rationale
Administering 1 mg of glucagon intramuscularly stimulates glycogenolysis in the liver, increasing blood glucose levels. However, it is slower in onset compared to IV dextrose, which is critical in a non-arousable patient with a dangerously low blood glucose level of 50 mg/dL. Time efficiency is vital in this emergency.
Choice B rationale
Administering 25 g of dextrose IV pushes glucose directly into the bloodstream, providing an immediate increase in blood glucose. This is the most appropriate action for a non-arousable, hypoglycemic patient. Normal blood glucose ranges between 70-100 mg/dL fasting, making this an emergency requiring prompt correction.
Choice C rationale
Encouraging the patient to eat may be effective in mild hypoglycemia, but not for a critically low level like 50 mg/dL in a non-arousable patient. This delay can result in prolonged neuroglycopenic effects, worsening the patient’s condition.
Choice D rationale
Administering 7 units of Humalog insulin would worsen the hypoglycemia by facilitating glucose uptake into cells, which is contraindicated in this situation. Instead, glucose administration is required to correct the hypoglycemia immediately.
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