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A nurse is preparing to administer enalapril at 5 mg IV bolus. Available is enalapril injection 25 mg/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.)

Answer and Explanation

The Correct Answer is ["4"]

Identify the Desired Dose and Available Concentration:

Desired Dose: 5 mg of enalapril

Available Concentration: 1.25 mg/mL (This means there are 1.25 mg of enalapril in every 1 mL of solution)

Set up the Calculation:

We need to find the volume (in mL) that contains the desired dose of 5 mg.

We can use the following formula:

Volume (mL) = Desired Dose (mg) / Available Concentration (mg/mL)

Plug in the Values and Calculate:

Volume (mL) = 5 mg / 1.25 mg/mL

Volume (mL) = 4 mL

Round to the Nearest Whole Number (if necessary):

4 mL

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Correct Answer is ["0.2"]

Explanation

Convert the Client's Weight from Pounds to Kilograms:

1 kg = 2.205 lbs

Weight in kg = 138 lbs / 2.205 lbs/kg

Weight in kg ≈ 62.585 kg

Calculate the Total Dose of Darbepoetin Needed:

Dose = 0.75 mcg/kg x 62.585 kg

Dose ≈ 46.93875 mcg

Calculate the Volume of Darbepoetin to Administer:

Available concentration = 60 mcg/0.3 mL

To simplify, find the concentration per 1 mL: 60 mcg / 0.3 mL = 200 mcg/mL

Volume (mL) = Desired dose (mcg) / Available concentration (mcg/mL)

Volume (mL) = 46.93875 mcg / 200 mcg/mL

Volume (mL) ≈ 0.23469 mL

Round to the Nearest Tenth:

0.2 mL

A. Digoxin 25 mcg/kg via IV bolus every 8 hr x 2 doses B. Dobutamine 15 mcg/kg via continuous IV infusion C. Bumetanide 0.1 mg/kg via IV bolus every 12 hr D. Dextrose 5% in 0.45% sodium chloride with 20 mEq KCl via continuous V Infusion at 50 mL/hr

Correct Answer is A

Explanation

A) Digoxin 25 mcg/kg via IV bolus every 8 hr x 2 doses: This prescription should be clarified. Digoxin is typically prescribed in micrograms (mcg), but the dose of 25 mcg/kg is very high and could lead to toxicity. For a client with heart failure, the usual dosage for digoxin is 0.125–0.25 mg daily, not 25 mcg/kg per dose, which is excessive and potentially dangerous. Therefore, this order should be clarified with the provider.

B) Dobutamine 15 mcg/kg via continuous IV infusion: This is an appropriate dose for dobutamine, which is commonly used in heart failure for its inotropic effects. Dobutamine is typically dosed between 2–20 mcg/kg/min for continuous IV infusion, so 15 mcg/kg/min is within a safe range.

C) Bumetanide 0.1 mg/kg via IV bolus every 12 hr: Bumetanide is a loop diuretic used in heart failure, and the prescribed dose of 0.1 mg/kg every 12 hours is an appropriate dosing regimen for this medication. It is within the typical dosing range, and the interval is also reasonable for managing fluid overload in heart failure.

D) Dextrose 5% in 0.45% sodium chloride with 20 mEq KCl via continuous IV infusion at 50 mL/hr: This IV fluid prescription is generally appropriate. The combination of dextrose and sodium chloride with potassium is commonly used to maintain hydration and electrolyte balance in clients, particularly in the context of heart failure management. The infusion rate of 50 mL/hr is a typical rate for continuous IV infusions.

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A nurse is preparing to administer enalapril at 5 mg IV bolus. Available is enalapril injection 25 mg/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.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer darbepoetin 0.75 mcg/kg IV bolus to a client who weighs 138 lb. Available is darbepoetin 60 mcg/0.3 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["0.2"]

Explanation

A nurse is reviewing the medication orders for a client who has heart failure. Which of the following prescriptions should the nurse clarify with the provider

Correct Answer is A

Explanation

A nurse is preparing to administer nalaxone 0.4 mg IV bolus to a client who is experiencing opioid toxicity. Available is naloxone injection 1 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it apples. Do not use a trailing zero.)

A nurse is preparing to administer midazolam 0.03 mg/kg IM to a client who weighs 110 lb. Available is midazolam 1 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer lorazepam 0.05 mg/kg IM to a client who weighs 132 lb. Available is lorazepam solution 2mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tent. Use a leading zero if it applies. Do not use a trailing zero)

A nurse is preparing to administer enalapril at 5 mg IV bolus. Available is enalapril injection 25 mg/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.)