A healthcare provider orders nitroprusside (100 mcg/1 mL) 3 mcg/kg/minute for a patient weighing 154 lb.
What rate (mL/hr) should the nurse program into the IV pump?

1.26 mL/hr

126 mL/hr

1260 mL/hr

12.6 mL/hr

Answer and Explanation

The Correct Answer is D

To answer this question, we need to calculate the infusion rate in mL per hour by using the following formula²:

Infusion rate (mL/h) = Dose (mcg/kg/min) × Weight (kg) × 60 min/h × Volume (mL) / Concentration (mcg/mL)

In this case, the infusion rate is:

Infusion rate (mL/h) = 3 mcg/kg/min × 70 kg × 60 min/h × 250 mL / 2500 mg

We need to convert lb to kg by dividing by 2.2

Infusion rate (mL/h) = 3 mcg/kg/min × (154 lb / 2.2 kg/lb) × 60 min/h × 250 mL / 2500 mg

We need to convert mg to mcg by multiplying by 1000:

Infusion rte (mL/h) = 3 mcg/kg/min × (154 lb / 2.2 kg/lb) × 60 min/h × 250 mL / (2500 mg × 1000 mcg/mg)

We can simplify the equation by canceling out some units and numbers:

Infusion rate (mL/h) = 3 × 154 × 250 / (2.2 × 2500 × 1000)

We can use a calculator to get the final answer:

Infusion rate (mL/h) = 12.6363636363636 mL/h

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Correct Answer is B

Explanation

To find the ﬂow rate in mL/hr, you need to use the formula for infusion rate:

Infusion rate (mL/h) = Total volume (mL) / Time (h)

Since the total volume is 2.5 L and the time is 15 hours, plug in these values into the formula:

Infusion rate (mL/h) = 2.5 L / 15 h

However, before you can simplify and solve for the infusion rate, you need to convert the volume from liters to milliliters by multiplying by 1000:

Infusion rate (mL/h) = 2500 mL / 15 h

Simplify and solve for the infusion rate:

Infusion rate (mL/h) = 166.67 mL/h

Therefore, the ﬂow rate for continuous infusion is **166.67 mL/h**.

A. Draw up one-half of the NPH insulin followed by one-half of the regular insulin and repeat. B. Draw up one-half of the regular insulin followed by one-half of the NPH insulin and repeat. C. Draw up the NPH insulin into the insulin syringe followed by the regular insulin. D. Draw up the regular insulin into the insulin syringe followed by the NPH insulin.

Correct Answer is D

Explanation

The correct technique for preparing this insulin order is to follow these steps¹²:

- Perform hand hygiene and put on gloves.
- Mix NPH (cloudy) insulin by gently rotating the vial between the palms of your hands. Do not shake the vial.
- Clean the tops of both vials with alcohol swabs and let them dry.
- Draw up the amount of air equal to the dose of NPH insulin into a syringe. Inject the air into the NPH vial without touching the needle to the solution. Withdraw the needle and syringe without drawing up any insulin. This will create positive pressure in the NPH vial and make it easier to draw up later.
- Draw up the amount of air equal to the dose of regular (clear) insulin into the same syringe. Inject the air into the regular vial and invert the vial. Make sure the needle tip is below the ﬂuid level and draw up slightly more than the dose of regular insulin. Tap the syringe gently to remove any air bubbles and push out any excess insulin to get the exact dose. Withdraw the needle and syringe from the regular vial.
- Reinsert the needle and syringe into the NPH vial without touching the needle to the solution. Invert the vial and draw up slightly more than the dose of NPH insulin. Tap the syringe gently to remove any air bubbles and push out any excess insulin to get the exact dose. Withdraw the needle and syringe from the NPH vial.
- Check that you have the correct doses of both insulins in one syringe. The total volume should be equal to the sum of both doses.
- Administer the dose within 5 to 10 minutes after drawing up because regular insulin binds to NPH and this decreases its action.

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A healthcare provider orders nitroprusside (100 mcg/1 mL) 3 mcg/kg/minute for a patient weighing 154 lb. What rate (mL/hr) should the nurse program into the IV pump?

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A physician gives the following order: "Infuse 0.9% sodium chloride solution, 2.5L over 15 hours." What is the mL/hr ﬂow rate for continuous infusion?

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The patient needs both regular insulin and NPH insulin to be administered subcutaneously. The nurse will mix both insulins in the same syringe. What is the correct technique for preparing this insulin order?

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A healthcare provider orders nitroprusside (100 mcg/1 mL) 3 mcg/kg/minute for a patient weighing 154 lb.
What rate (mL/hr) should the nurse program into the IV pump?