A nurse is preparing to administer insulin glargine to a child who has type 1 diabetes mellitus. The client is to receive 10 units subcutaneous once daily at bedtime. Reading the label on the unopened vial, the nurse should determine that the vial contains how many doses of this medication? (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 ["100"]

The label on the vial indicates that the insulin glargine has a concentration of 100 units per milliliter (U-100) and the total volume of the vial is 10 mL.

To calculate the total number of units in the vial, you multiply the volume by the concentration:

Total units = Volume × Concentration = 10 mL×100 units/mL = 1000 units

Then, to find out how many doses of 10 units each are in the vial,

you divide the total number of units by the number of units per dose:

Number of doses = Total units/ Units per dose

= 1000 units /10 units per dose

= 100 doses

So, the vial contains 100 doses of this medication when administered at 10 units per dose

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Correct Answer is C

Explanation

A) Pound: This is a unit of weight commonly used in the imperial system, not in the metric system. While pounds are often used in everyday measurements in some countries, they are not the standard metric unit for documenting weight in medical records.

B) Ounce: This is another unit of weight used in the imperial system, typically for smaller weights. Like pounds, ounces are not part of the metric system and should not be used for documentation if metric units are required.

C) Kilogram: This is the standard metric unit of weight and is widely used in medical settings for documenting a client's weight. The metric system is preferred in healthcare because it provides a standardized and universally accepted method of measurement.

D) Pint: This is a unit of volume used in the imperial system, not a unit of weight. It is used for measuring liquids and is not relevant for documenting a client's weight in the medical record.

Correct Answer is ["10"]

Explanation

To administer 5mg of cetirizine with a concentration of 2.5mg/mL, the nurse should indeed administer 10 mL.

Here's the corrected calculation:

Desired dose: 5 mg

Concentration of available cetirizine: 2.5 mg/mL

We can find the volume to administer by dividing the desired dose by the concentration

Volume to administer = Dose / Concentration

= 5 mg / (2.5 mg/mL)

= 2 mL

However, since each milliliter only contains 2.5mg, we need to administer more than 2mL to reach the desired dose of 5mg.

To get to 5mg, we need to administer twice the amount (2 x 2.5mg = 5mg). This translates to:

Total volume to administer = 2 mL/dose x 2 doses

= 10 mL

Therefore, the nurse should administer 10 mL of the cetirizine solution.

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Naxlex Comprehensive Predictor Exams

A nurse is helping assistive personnel with documenting a client's weight in the medical record. Which of the following should the nurse identify as a metric unit?

Correct Answer is C

Explanation

A nurse is preparing to administer cetirizine 5 mg PO. Available is cetirizine 2.5 mg/5 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 ["10"]

Explanation

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