A nurse is preparing to administer lidocaine 4 mg/min by continuous IV infusion. Available is lidocaine 1 g in dextrose 5% in water 250 ml. 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 ["60"]

To calculate the infusion rate of lidocaine, we need to convert the dose from mg/min to mg/hr and then to mL/hr.

The prescribed dose is 4 mg/min, so the hourly dose is 4 x 60 = 240 mg/hr.

The concentration of the drug is 1 g in 250 mL, which is equivalent to 1000 mg in 250 mL or 4 mg in 1 mL.

Therefore, the volume per hour is 240 / 4 = 60 mL/hr.

Rounded to the nearest whole number, the nurse should set the IV pump to deliver 60 mL/hr.

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Correct Answer is ["30"]

Explanation

To administer potassium gluconate 40 mEq PO, the nurse should use the following formula: mL = (mEq / mEq/mL) x mL. Plugging in the values from the question, we get: mL = (40 / 20) x 15. Simplifying, we get: mL = 30.

Therefore, the nurse should administer 30 mL of potassium gluconate liquid.

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.

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Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer potassium gluconate 40 mEq PO. Available is potassium gluconate liquid 20 mEq/15 mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["30"]

Explanation

Correct Answer is ["3.5"]

Explanation

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