A client is prescribed 250 mg of metformin. The pharmacy supplies 500 mg pre- scored tablets of metformin. How should the nurse administer the medication to the client?

Administer one half tablet

Administer two tablets

Administer one tablet

Administer one-and-a-half tablets

Answer and Explanation

The Correct Answer is A

Administer one half tablet. To find the amount of tablets to administer, use the formula: (ordered dose / available dose). In this case, (250 mg / 500 mg) = 0.5 tablet. Since the tablet is pre-scored, it can be easily split in half.

Metformin is a medication that belongs to a class of drugs called biguanides. It is used to treat type 2 diabetes by lowering blood sugar levels and improving insulin sensitivity. Metformin works by reducing the amount of glucose produced by the liver and increasing the uptake of glucose by the muscles and other tissues.

Metformin can also help prevent or delay the onset of diabetes complications, such as heart disease and kidney damage.

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Correct Answer is A

Explanation

To determine the mL per dose of heparin, we can use the following formula:

mL per dose = (total units needed) / (concentration of heparin in units/mL). Substituting the values given in the

Question :.

mL per dose = 10,000 units / 20,000 units/mL = 0.5 mL per dose.

Therefore, the client should receive 0.5 mL per dose of heparin from the vial containing a concentration of 20,000 units/mL.

A. 75 mL/hr B. 150 mL/hr C. 300 mL/hr D. 450 mL/hr

Correct Answer is C

Explanation

To calculate the rate per hour, divide the amount of magnesium sulfate to be administered by the concentration of magnesium sulfate in the IV bag:

6 grams ÷ 40 grams = 0.15

Then, multiply the result by the volume of the IV bag, which is usually 1000 mL: 0.15 x 1000 mL = 150 mL

This is the amount of fluid that contains 6 grams of magnesium sulfate. To administer this amount over 30 minutes, multiply by 2 to get the rate per hour:

150 mL x 2 = 300 mL/hr.

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A client is prescribed 250 mg of metformin. The pharmacy supplies 500 mg pre- scored tablets of metformin. How should the nurse administer the medication to the client?

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Naxlex Comprehensive Predictor Exams

A client is prescribed 10,000 units of heparin. How many mL per dose should be administered from a vial containing heparin, with a concentration of 20,000 units/mL?

Correct Answer is A

Explanation

A physician orders magnesium sulfate, 6 grams loading dose to be administered over 30 minutes. There are 40 grams of magnesium sulfate in the IV bag. What is the rate per hour to administer the loading dose?

Correct Answer is C

Explanation

A primary healthcare provider has prescribed 1.8 mg/kg of brentuximab for a client who has Hodgkin lymphoma and weighs 60 kg. The nurse has on hand 50 mg per 10 mL. How many mL of medication should the nurse administer to the client?

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