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.)
The Correct Answer is ["0.25"]
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
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["4.5"]
Explanation
Calculate the Insulin Dose in Units/hr:
Dose = 0.1 units/kg/hr x 45 kg
Dose = 4.5 units/hr
Determine the Insulin Concentration in Units/mL:
Available concentration = 1 unit/mL (given in the problem)
Calculate the Infusion Rate in mL/hr:
Infusion Rate (mL/hr) = Dose in units/hr / Concentration (units/mL)
Infusion Rate (mL/hr) = 4.5 units/hr / 1 unit/mL
Infusion Rate (mL/hr) = 4.5 mL/hr
Round to the Nearest Tenth (if necessary):
4.5 mL/hr
Correct Answer is ["4"]
Explanation
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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