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Discussion

Dosage Calculation

Please help with some dosage calculation problems.

6. Order: 35 mg of a medication by mouthtid

Patient weight: 99 pounds

Safe dose range: 2 to 4 mg/kg/day

This is a safe medication order.

A) True

B) False

7.The nurse wants to give 2 g of magnesium sulfate and has available a medication

labeled 50% magnesium sulfate in 20 mL

many mL will the nurse administer?

12. Patient weight: 32 kg

Medication order: Nitroprusside 2 mcg/kg/min

Pediatric dose: 200-500 mcg/kg/hr

Drug available: Nitroprusside 50 mg/5 mL

Dilution: 50.5 mg in 250 mL of NS at 19 mL/hr

Will this dilution deliver 2 mcg/kg/min?

A) True

B) False

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    • Featured Replies

    We'll be glad to help with your questions, but you need to show us some of your effort & thought processes rather than just expecting us to do your work for you. It'll help you to focus & think future questions out for yourself.

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    • Author

    Thank you. Order: 35 mg of a medication by mouthtid

    Patient weight: 99 pounds

    Safe dose range: 2 to 4 mg/kg/day

    This is a safe medication order.

    I converted 99 pounds to kg which came out to 45 kg. Then I used dimensional analysis 35mg/1 * kg/day / 2mg and I am not sure what to do after that.

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    Patient weighs 45kg

    Safe range is 2-4 mg/kg/day

    2mg * 45kg= ?

    4mg *45 kg= ?

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    Also: How much of the med was given in a day?

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    35mg TID = 105mg total... 2-4mg /kg/day ...... Pt weighs 99lbs or 45kg

    2mg*45kg = 90mg

    4mg*45kg = 180mg

    Is 105mg/day ok, when the safe range is between 90mg-180mg?

    -hoping I calculated that correctly =/

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    • Author

    Thank you. I passed my test with a 90. I am so happy. Now I have to worry about taking this hesi test haha

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