A nurse is preparing to administer dobutamine 10 mcg/kg/min by continuous IV infusion to a client who weighs 110 lb. Available is dobutamine 250 mg in 250 mL dextrose 5% in water. The nurse should set the IV pump to deliver how many mL/hr?
(Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["30"]

To solve this problem, the nurse needs to convert the client's weight from pounds to kilograms, and then use the formula:

mL/hr = (mcg/kg/min x kg x 60 min) / (mg/mL x 1000 mcg/mg)

The client's weight in kilograms is:

110 lb / 2.2 lb/kg = 50 kg

The concentration of dobutamine in mg/mL is:

250 mg / 250 mL = 1 mg/mL

Plugging these values into the formula, we get:

mL/hr = (10 mcg/kg/min x 50 kg x 60 min) / (1 mg/mL x 1000 mcg/mg) mL/hr = (30,000 mcg/min) / (1000 mcg/mg)

mL/hr = 30 mg/min

mL/hr = 30 mL/hr

Therefore, the nurse should set the IV pump to deliver 30 mL/hr.

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Free Nursing Study Resources

Correct Answer is ["3.5"]

Explanation

Convert the client's weight from pounds to kilograms:
- 154 lb ÷ 2.2 lb/kg = 70 kg
Calculate the total dose required:
- 0.25 mg/kg × 70 kg = 17.5 mg
Determine the volume to administer:
- Given concentration: 5 mg/mL
- 17.5 mg ÷ 5 mg/mL = 3.5 mL
Rounding to the nearest tenth:
- The answer remains 3.5 mL

So the nurse should administer 3.5 mL of diltiazem IV injection.

which is 17.5 mg / 5 mg/mL = 3.5 mL. Rounding to the nearest tenth, the nurse should administer 3.5 mL of diltiazem IV injection.

Correct Answer is ["25"]

Explanation

To calculate the IV flow rate in gtt/min, use the formula: (mL/hr x drop factor) / 60 min. Plug in the values: (100 mL/hr x 15 gtt/mL) / 60 min = 25 gtt/min. Round to the nearest whole number: 25 gtt/min.

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Naxlex Comprehensive Predictor Exams

Correct Answer is ["3.5"]

Explanation

Correct Answer is ["25"]

Explanation

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