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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 ["30"]

Explanation

Understanding the Problem

Order: Potassium gluconate 40 mEq PO

Available Solution: Potassium gluconate liquid 20 mEq/15 mL

Desired Dose: mL to administer

Step 1: Set Up the Calculation

We need to find the volume (in mL) that contains the ordered dose (40 mEq). We can do this by setting up a proportion or using the formula:

Volume (mL) = (Ordered Dose (mEq) / Concentration (mEq/mL))

Step 2: Determine the Concentration

Available Concentration: 20 mEq / 15 mL

Step 3: Perform the Calculation

Ordered Dose: 40 mEq

Concentration: 20 mEq / 15 mL

Volume: (40 mEq) / (20 mEq / 15 mL) = (40 mEq X 15 mL) / 20 mEq

We can simplify this by dividing 40 by 20:

Volume: (2 X 15 mL) = 30 mL

Step 4: Round to the Nearest Whole Number

The result is 30 mL, which is already a whole number.

Answer: 30 mL

Correct Answer is ["0.25"]

Explanation

Order: Filgrastim 250 mcg (micrograms)

Desired Unit: mg (milligrams)

Step 1: Conversion Factor

We need to know the relationship between micrograms (mcg) and milligrams (mg).

1 mg = 1000 mcg

Step 2: Set Up the Conversion

We want to convert 250 mcg to mg. To do this, we'll divide the given dose (250 mcg) by the conversion factor (1000 mcg/mg):

250 mcg x (1 mg / 1000 mcg)

Step 3: Perform the Calculation

Multiply the numerators: 250 x 1 = 250

Multiply the denominators: 1 x 1000 = 1000

Divide the result: 250 / 1000 = 0.25

Step 4: Answer with Correct Units and Rounding

The result is 0.25 mg.

The problem asks us to round to the nearest hundredth, which we already have (0.25).

The problem also states to use a leading zero if it applies (which it does) and not use a

trailing zero (which we don't have).

Answer: 0.25 mg

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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 potassium glucose 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

A nurse is preparing to administer filgrastim 250 mcg, subcutaneous. How many mg should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["0.25"]

Explanation

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