The nurse receives an order for regular insulin IV at 12 units/hour for a client with diabetic ketoacidosis. The concentration is insulin 100 units in 250 mL of 0.9% NS. How many milliliters per hour should the IV pump be programmed for? Round your answer to the nearest whole number. Enter numeric value only

Answer and Explanation

The Correct Answer is ["30"]

12 units of insulin should be delivered every hour.
In 250 mL of the IV solution, there are 100 units of insulin.
If 100 units are in 250 mL, then to find the volume for 1 unit, we divide the total volume by the total units: 250 mL ÷ 100 units = 2.5 mL/unit
Since we need to deliver 12 units per hour, and each unit is in 2.5 mL, we multiply the desired units per hour by the volume per unit: 12 units/hour × 2.5 mL/unit = 30 mL/hour
Rounding to the nearest whole number, the IV pump should be programmed to deliver 30 mL per hour.

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Correct Answer is B

Explanation

A. Bedtime snacks are often recommended for clients using insulin to help prevent nighttime hypoglycemia, especially if they are taking insulin that has a peak action during the night (e.g., NPH insulin).
B. The timing of food intake should not necessarily coincide with the peak action of the insulin. For example, rapid-acting insulins should be given around meal times, but the timing of food isn't strictly tied to the insulin peak. It's more important to match the insulin to meal timing to help with glucose control.
C. When mixing NPH (a longer-acting insulin) and regular insulin (a shorter-acting insulin), the correct technique is to draw up the regular insulin first to avoid contamination of the regular insulin with the NPH insulin, which is cloudy.
D. Educating clients about the signs, symptoms, and management of hypoglycemia is essential to safe insulin therapy.

A. warfarin (Coumadin) B. pantoprazole (Protonix) C. metformin (Glucophage) D. fluoxetine (Prozac)

Correct Answer is C

Explanation

A. While warfarin is an anticoagulant, it is not contraindicated with contrast imaging. However, the nurse should monitor for bleeding and report any abnormal findings, but this medication is not a priority to report immediately in the context of a CT scan.
B. Pantoprazole is a proton pump inhibitor used to treat acid reflux, and it does not pose any specific concerns regarding the administration of contrast for an abdominal CT scan.
C. Metformin should be reported immediately. It is contraindicated in clients undergoing contrast procedures because it can increase the risk of lactic acidosis, particularly in those with renal impairment. Metformin should generally be withheld 48 hours before and after receiving contrast material to avoid this risk.
D. Fluoxetine is an antidepressant (SSRI) and does not have a direct interaction with the contrast medium used in CT scans. It is not a priority to report in this situation.

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Naxlex Comprehensive Predictor Exams

The nurse attended a staff education conference about insulin therapy for diabetic management. Which of the following statements by the nurse would indicate that more education is needed?

Correct Answer is B

Explanation

The nurse is preparing a client who has diabetes mellitus, type 2 for an abdominal CT scan with contrast. Which of the following prescribed medications, taken by the client, should be reported to the health care provider immediately?

Correct Answer is C

Explanation

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