A physician ordered 5 mL 10% dextrose stat. The only dextrose available is a vial of 5 mL 50% dextrose.
How can the nurse provide the appropriate dose?

Dextrose 50%, add 1 mL to 4 mL injectable saline

Dextrose 50%, add 2 mL to 3 mL injectable saline

Dextrose 50%, add 3 mL to 2 mL injectable saline

Dextrose 50%, add 4 mL to 1 mL injectable saline

Answer and Explanation

The Correct Answer is A

Dextrose 50%, add 1 mL to 4 mL injectable saline. To obtain 5 mL of 10% dextrose, 0.5 mL of the 50% dextrose should be diluted with 4.5 mL of sterile water or normal saline. Therefore, the nurse should add 1 mL of the 50% dextrose to 4 mL of injectable saline to get a final concentration of 10% dextrose in 5 mL. This will give the client the appropriate dose.

Choice B is incorrect because adding 2 mL of the 50% dextrose to 3 mL of saline would give a final concentration of 20%, which is higher than the prescribed concentration of 10%.

Choice C is incorrect because adding 3 mL of the 50% dextrose to 2 mL of saline would give a final concentration of 30%, which is significantly higher than the prescribed concentration of 10%.

Choice D is incorrect because adding 4 mL of the 50% dextrose to 1 mL of saline would give a final concentration of 40%, which is much higher than the prescribed concentration of 10%.

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Correct Answer is A

Explanation

To calculate the dose of brentuximab in mg that the client should receive, we need to multiply the weight of the client in kg by the prescribed dose of 1.8 mg/kg:.

Dose (in mg) = Weight (in kg) x Dose (in mg/kg).

Dose (in mg) = 60 kg x 1.8 mg/kg. Dose (in mg) = 108 mg.

Now we need to calculate the volume of medication to administer. Since the medication available is 50 mg per 10 mL, we can use proportion to calculate the volume:.

50 mg is to 10 mL as 108 mg is to X mL. 50/10 = 108/X.

Cross-multiplying, we get:. 50X = 108 x 10.

X = (108 x 10)/50. X = 21.6 mL.

Therefore, the nurse should administer 21.6 mL of brentuximab to the client.

A. 22 B. 100 C. 333 D. 666

Correct Answer is C

Explanation

The number of tablets and their weight only provide information about the total amount of medication in the vial (100 tablets x 333 mg = 33,300 mg or 33.3 g).

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A physician ordered 5 mL 10% dextrose stat. The only dextrose available is a vial of 5 mL 50% dextrose. How can the nurse provide the appropriate dose?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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?

Correct Answer is A

Explanation

What is the total volume of medication in a vial with lot number 666, containing 100 tablets, each 333 mg and expiring on 2-22-16?

Correct Answer is C

Explanation

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A physician ordered 5 mL 10% dextrose stat. The only dextrose available is a vial of 5 mL 50% dextrose.
How can the nurse provide the appropriate dose?