A nurse is preparing to administer vancomycin 500 mg via intermitent IV bolus to a client. Available is vancomycin powder for injection 1 g vial. The nurse reconstitutes the powder for a final concentration of vancomycin 5 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["100"]
First, we need to determine how many milligrams of vancomycin are in each milliliter of the reconstituted solution:
1 g = 1,000 mg
If we reconstitute 1 g of vancomycin powder for injection in enough diluent to make a final volume of 200 mL, the concentration will be:
1,000 mg ÷ 200 mL = 5 mg/mL
Now, we can calculate how many milliliters of the reconstituted solution the nurse should administer to deliver 500 mg of vancomycin:
500 mg ÷ 5 mg/mL = 100 mL
Therefore, the nurse should administer 100 mL of the reconstituted vancomycin solution via intermitent IV
bolus.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
c) Choose the same day of each week to take this medication.
The nurse should interpret the prescription for alendronate 70 mg PO once per week upon waking to be taken 30 min before food, fluids, or medication with a client who has osteoporosis as instructing the client to choose the same day of each week to take the medication. This will help to ensure that the medication is taken consistently and at the appropriate time.
Taking the medication at 1800, 30 min after the evening meal (option A) is not consistent with the prescription, which specifies that the medication should be taken upon waking and before food, fluids, or other medications. Over-the-counter oral preparations can be taken with this medication (option B) is not accurate; the prescription specifies that alendronate should be taken 30 min before other medications. The client can return to bed after taking the medication, but before eating (option D) is not consistent with the prescription, which specifies that the client should remain upright for 30 min after administration.
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The correct answer is c. Choose the same day of each week to take this medication. Rationale for each choice: Choice a. Take the medication at 1800, 30 min after the evening meal. is incorrect.
Choice b. Over-the-counter oral preparations can be taken with this medication. is incorrect.
Choice d. The client can return to bed after taking the medication, but before eating. is incorrect.
Choice c. Choose the same day of each week to take this medication. is the correct interpretation of the prescription.
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Correct Answer is ["0.5"]
Explanation
To calculate the number of tablets to be administered, the nurse should divide the prescribed dose (20 mg) by the strength of the available medication (40 mg/tablet): 20 mg / 40 mg/tablet = 0.5 tablets.
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