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Ati Dosage calculation RN fundamentals assessment 3.2
Ati Dosage calculation RN fundamentals assessment 3.2
Total Questions : 35
Showing 10 questions Sign up for moreA nurse is preparing to administer lidocaine 200 mg IM stat and repeat in 60 min. Available is lidocaine injection 300 mg/3 mL. How many mL should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading, zero if it applies. Do not use a trailing zero.)
Explanation
Determine the desired dosage:
The nurse needs to administer 200 mg of lidocaine.
Determine the volume per dose:
The lidocaine injection contains 300 mg per 3 mL.
The nurse needs to administer 200 mg per dose.
To find the volume per dose, we can set up a proportion:
300 mg / 3 mL = 200 mg / x mL
300x = 600
Dividing both sides by 300, we get:
x = 2 mL
A nurse is preparing to administer isoniazid 187 mg IM. Available is isoniazid injection 100 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.)
Explanation
Determine the desired dosage:
The nurse needs to administer 187 mg of isoniazid.
Determine the volume per dose:
The isoniazid injection contains 100 mg per 1 mL.
The nurse needs to administer 187 mg per dose.
To find the volume per dose, we can set up a proportion:
100 mg / 1 mL = 187 mg / x mL
Cross-multiplying gives us:
100x = 187
Dividing both sides by 100, we get:
x = 1.87 mL
Round the answer to the nearest tenth:
Rounding 1.87 to the nearest tenth gives us 1.9 mL.
A nurse is preparing to administer bumetanide 5 mg, PO daily. Available is bumetanide 0.5 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use leading zero if it applies. Do not use a trailing zero.)
Explanation
Determine the desired dosage:
The nurse needs to administer 1.5 mg of bumetanide.
Determine the number of tablets per dose:
Each tablet contains 0.5 mg of bumetanide.
The nurse needs to administer 1.5 mg per dose.
To find the number of tablets per dose, we can set up a proportion:
0.5 mg / 1 tablet = 1.5 mg / x tablets
0.5x = 1.5
Dividing both sides by 0.5, we get:
x = 3 tablets
A nurse is converting a medication dose from to mcg. The amount available is 5 g. The nurse should recognize that this amount is equal to how many mcg? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use trailing zero)
Explanation
Determine the conversion factor:
There are 1,000,000 micrograms (mcg) in 1 gram (g).
Convert grams to micrograms:
To convert 5 grams to micrograms, we can multiply by the conversion factor:
5g x 1,000,000 mcg/g = 5,000,000 mcg
A nurse l preparing to administer methylprednisolone acetate 60 mg IM weekly. Available is methylprednisolone acetate suspension for injection 80 mg/mL. How many mi should the nurse administer per dose? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use trailing zero.)
Explanation
Set up the dosage calculation:
Desired dose:60 mg
Available concentration:80 mg/mL
We need to find out how many mL will contain 60 mg of methylprednisolone acetate.
Use the formula:
Volume (mL) = Desired dose (mg) / Available concentration (mg/mL)
Plug in the values and calculate:
Volume (mL) = 60 mg / 80 mg/mL
Volume (mL) = 0.75 mL
Round to the nearest hundredth:
0.75mL
A nurse is preparing to administer gentamicin 1 mg/kg IM to a client who weighs 154 lb. Available is gentamicin solution 40 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.)
Explanation
Convert the client's weight from pounds to kilograms:
There are 2.205 pounds in 1 kilogram.
154 lb = 154 lb / 2.205 lb/kg = 70 kg (rounded to the nearest whole number).
Determine the total dosage:
The client is prescribed 1 mg/kg of gentamicin.
The client weighs 70 kg.
The total dosage is 1 mg/kg x 70 kg = 70 mg.
Determine the volume per dose:
The gentamicin solution contains 40 mg per 1 mL.
The nurse needs to administer 70 mg per dose.
To find the volume per dose:
40 mg / 1 mL = 70 mg / x mL
Cross-multiplying gives us:
40x = 70
Dividing both sides by 40, we get:
x = 1.75 mL
Round the answer to the nearest tenth:
Rounding 1.75 to the nearest tenth gives us 1.8 mL.
A nurse preparing to administer diciofenac sodium 200 mg PO daily equally divided doses every 6 hr. How many mg should the nurse administer per dose? (Round the answer to the nearest whole number. Use a leading, zero if it applies. Do not use a trailing, zero.)
Explanation
Determine the total daily dosage:
The client is prescribed 200 mg of diclofenac sodium daily.
Calculate the dosage per dose:
The medication is to be administered in equally divided doses every 6 hours.
There are 24 hours in a day, so the medication is given 24/6 = 4 times a day.
The dosage per dose is 200 mg / 4 doses = 50 mg per dose.
A nurse is preparing to administer filgrastim 480 mcg subcutaneous daily. Available is filgrastim injection 300 mcg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Determine the desired dosage:
The nurse needs to administer 480 mcg of filgrastim.
Determine the volume per dose:
The filgrastim injection contains 300 mcg per 1 mL.
The nurse needs to administer 480 mcg per dose.
To find the volume per dose:
300 mcg / 1 mL = 480 mcg / x mL
Cross-multiplying gives us:
300x = 480
Dividing both sides by 300, we get:
x = 1.6 mL
A nurse preparing to administer heparin 10,000 units subcutaneous every 8 hr. Available i heparin injection 20,000 units/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Determine the desired dosage:
The nurse needs to administer 10,000 units of heparin.
Determine the volume per dose:
The heparin injection contains 20,000 units per 1 mL.
The nurse needs to administer 10,000 units per dose.
To find the volume per dose:
20,000 units / 1 mL = 10,000 units / x mL
Cross-multiplying gives us:
20,000x = 10,000
Dividing both sides by 20,000, we get:
x = 0.5 mL
A nurse is preparing to administer methy prednisolone 7 mg/kg/day IM in two divided doses to a school-age child who weighs 64 lb. Available is methyiprednisolone 20 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
First, convert the child's weight from pounds to kilograms: 64 lb / 2.205 lb/kg = 29.02 kg
Calculate the total daily dose of methylprednisolone needed: 7 mg/kg x 29.02 kg = 203.14 mg
Calculate the dose per administration: 203.14 mg / 2 = 101.57 mg
Calculate the volume of methylprednisolone to administer per dose: 101.57 mg / 20 mg/mL = 5.0785 mL
Round to the nearest tenth: 5.0785 mL rounded to the nearest tenth is 5.1 mL.
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