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A prescription is for 2 units of insulin subQ before meals. The vial available is 100 units/mL. How many mL should the nurse administer?

0.2 mL

2 mL

0.20 mL

0.02 mL

Answer and Explanation

The Correct Answer is D

Identify the ordered dose and available concentration

Ordered Dose: 2 units

Available Concentration: 100 units/mL

Calculate the volume to administer

Volume to administer = Ordered Dose ÷ Concentration

Volume to administer = 2 ÷ 100

= 0.02 mL

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Correct Answer is B

Explanation

Identify the ordered dose and available concentration

Ordered Dose: 12 mg

Available Concentration: 10 mg/mL

Calculate the volume to administer

Volume to administer = Ordered Dose ÷ Concentration

Volume to administer = 12 ÷ 10

= 1.2 mL

A. 1 capsule B. 3 capsules C. 2 capsules D. 4 capsules

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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A prescription is for 2 units of insulin subQ before meals. The vial available is 100 units/mL. How many mL should the nurse administer?

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