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A nurse-midwife orders Stadol (butorphanol) 1 mg IV push every 3-4 hours as needed for pain. The nurse has Stadol available as 2 mg/mL injectable solution. How many milliliters should the nurse administer to the patient?

0.5 mL

1 mL

1.5 mL

2 mL

Answer and Explanation

The Correct Answer is A

To administer 1 mg of Stadol, we need 1/2 mL of 2 mg/mL injectable solution. .

So, to administer 1 mg of Stadol, the nurse should administer 0.5 mL of the injectable solution.

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Correct Answer is B

Explanation

To calculate the dose of dobutamine in mg/hr, we need to convert the patient's weight from pounds (lb) to kilograms (kg) and then use the ordered dose of 10 mcg/kg/min.

1 lb = 0.453592 kg (rounded to 6 decimal places) Patient's weight in kg = 110 lb x 0.453592 kg/lb

Patient's weight in kg = 49.89512 kg (rounded to 5 decimal places)

Now we can calculate the dose of dobutamine in mg/hr using the following formula:

Dose (in mg/hr) = Weight (in kg) x Dose (in mcg/kg/min) x 60 (to convert minutes to hours) / 1000 (to convert mcg to mg)

Dose (in mg/hr) = 49.89512 kg x 10 mcg/kg/min x 60 / 1000

Dose (in mg/hr) = 29.937072 mg/hr (rounded to 3 decimal places)

Therefore, the patient should receive a dose of approximately 29.9 mg/hr of dobutamine.

A. 1 mL B. 1.1 mL C. 3.6 mL D. 11 mL

Correct Answer is B

Explanation

We can use proportion to calculate the volume of Primaxin to administer:. 275 mg is to X mL as 500 mg is to 2 mL.

275/X = 500/2.

Cross-multiplying, we get:. 500X = 275 x 2.

X = (275 x 2)/500. X = 1.1 mL.

Therefore, the nurse should administer 1.1 mL of Primaxin to the patient, rounded to the nearest tenth.

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A nurse-midwife orders Stadol (butorphanol) 1 mg IV push every 3-4 hours as needed for pain. The nurse has Stadol available as 2 mg/mL injectable solution. How many milliliters should the nurse administer to the patient?

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Naxlex Comprehensive Predictor Exams

A physician orders Dobutamine 10 mcg/kg/min for a patient. The patient is 110 lb. How many milligrams per hour should the patient receive?

Correct Answer is B

Explanation

Primaxin (imipenem) 275 mg IM is ordered. Primaxin 500 mg/2 mL is available. How many milliliters should the nurse administer to the patient? Round to the nearest tenth.

Correct Answer is B

Explanation

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