A child needs 75 mg of a liquid medication. The bottle indicates 15 mg/mL. How many mL will you administer?
3 mL
5 mL
6 mL
7 mL
The Correct Answer is B
Identify the ordered dose and available concentration
Ordered Dose: 75 mg
Available Concentration: 15 mg/mL
Calculate the volume to administer
Volume to administer = Ordered Dose ÷ Concentration
Volume to administer = 75 ÷ 15
= 5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Calculation:
Ordered Dose: 500 mg
Available Concentration: 1 g per 5 mL
Convert grams to milligrams:
1 g = 1000 mg
So, concentration = 1000 mg per 5 mL
Calculate the volume to administer
Volume to administer = (Ordered Dose ÷ Available Dose) × Volume
Volume to administer = (500 ÷ 1000) × 5
Volume to administer = 0.5 × 5
= 2.5 mL
Correct Answer is C
Explanation
Ordered Dose: 500 mg
Capsule Strength: 250 mg per capsule
Calculate the number of capsules to administer
Number of Capsules = Ordered Dose ÷ Capsule Strength
Number of Capsules = 500 ÷ 250
= 2
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