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Ati RN Dosage Calculations RN Fundamentals Proctored Assessment 3.1
Total Questions : 33
Showing 10 questions, Sign in for moreA nurse is preparing to administer diclofenac sodium 200 mg PO daily in 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
Total daily dose = 200 mg Frequency = Every 6 hours Total number of doses =24/6
=4 doses
Total dose = 200mg Per dose= 200mg/4
= 50mg
So, the nurse should administer 50 mg per dose.
A nurse is teaching a newly hired nurse about documentation in the medical record. Which of the following abbreviations should the newly hired nurse identify as a metric unit of weight?
A nurse is reviewing a new 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. The client is to remain upright for 30 min after administration. How should the nurse interpret this prescription for the client?
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
Filgrastim dose: 480 mcg
Filgrastim injection concentration: 300 mcg/mL Calculation:
To find the volume of the injection needed, divide the dose by the concentration: Volume (mL) = Dose/ Concentration
Volume (mL) = 480 mcg / 300 mcg/mL
Volume (mL) ≈ 1.6 mL (rounded to the nearest tenth)
A nurse is preparing to administer insulin glargine to a child who has type 1 diabetes mellitus.
The client is to receive 10 units subcutaneous once daily at bedtime. Reading the label on the unopened vial, the nurse should determine that the vial contains how many doses of this medication? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Given:
- Insulin glargine concentration: 100 units/mL
- Total volume of insulin in the vial: 10 mL
- Dose of insulin glargine per day: 10 units
Calculation:
First, let's find out how many total units are in the vial:
Total units = Concentration (units/mL) × Volume (mL) Total units = 100 units/mL × 10 mL
Total units = 1000 units
Now, let's find out how many doses can be obtained from the total units in the vial: Number of doses = Total units / Dose per day
Number of doses = 1000 units / 10 units/day Number of doses = 100 doses
So, the vial contains approximately 100 doses of insulin glargine.
A nurse is preparing to administer calcium citrate 1.9 g PO. Available is calcium citrate 950 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Given:
- Desired dose of calcium citrate: 1.9 g
- Available strength of calcium citrate tablets: 950 mg
First, convert the desired dose from grams to milligrams: 1.9 g = 1900 mg
Now, let's find out how many tablets are needed:
Number of tablets = Desired dose / Strength per tablet
Number of tablets = 1900 mg / 950 mg/tablet Number of tablets = 2 tablets
So, the nurse should administer approximately 2 tablets of calcium citrate.
A nurse is preparing to administer levothyroxine 0.05 mg PO to a client. Available is levothyroxine 25 mcg tablets. How many tablets should the nurse plan to administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Given:
- Desired dose of levothyroxine: 0.05 mg
- Available strength of levothyroxine tablets: 25 mcg
First, convert the desired dose from milligrams to micrograms:
0.05 mg = 50 mcg
Number of tablets = Desired dose / Strength per tablet
Number of tablets = 50 mcg / 25 mcg/tablet Number of tablets = 2 tablets
So, the nurse should plan to administer 2 tablets of levothyroxine.
A nurse is preparing to administer morphine 0.3 mg/kg PO to a client who weighs 99 lb.
Available is morphine oral solution 4 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
Given:
- Desired dose of morphine: 0.3 mg/kg
- Client's weight: 99 lb
- Available strength of morphine oral solution: 4 mg/mL
First convert the client's weight from pounds to kilograms: 99 lb ÷ 2.20462 = 44.91 kg (rounded to the nearest hundredth)
The desired dose of morphine:
Desired dose = Client's weight × Dose per kg Desired dose = 44.91 kg × 0.3 mg/kg
Desired dose ≈ 13.473 mg
The milliliters of morphine oral solution this corresponds to:
Volume (mL) = Desired dose / Concentration Volume (mL) = 13.473 mg / 4 mg/mL Volume (mL) ≈ 3.37 mL
So, the nurse should administer approximately 3.4 mL of morphine oral solution.
A nurse is preparing to administer megestrol 800 mg PO. Available is megestrol suspension 40 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Given:
- Desired dose of megestrol: 800 mg
- Available strength of megestrol suspension: 40 mg/mL
First, find out how many milliliters of megestrol suspension correspond to the desired dose: Volume (mL) = Desired dose / Concentration
Volume (mL) = 800 mg / 40 mg/mL Volume (mL) = 20 mL
So, the nurse should administer 20 mL of megestrol suspension.
A nurse is preparing to administer ceftriaxone 75 mg/kg/day IM in two divided doses to a child who weighs 37 lb. The amount available after reconstitution is ceftriaxone 350 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
Given:
- Desired dose of ceftriaxone: 75 mg/kg/day
- Child's weight: 37 lb
- Available strength of ceftriaxone after reconstitution: 350 mg/mL
First, convert the child's weight from pounds to kilograms: 37 lb ÷ 2.20462 = 16.78 kg (rounded to the nearest hundredth)
The total daily dose of ceftriaxone:
Total daily dose = Desired dose × Child's weight
Total daily dose = 75 mg/kg/day × 16.78 kg Total daily dose ≈ 1258.5 mg
Since the total daily dose is to be divided into two equal doses, each dose would be:
Each dose = Total daily dose / Number of doses per day Each dose = 1258.5 mg / 2
Each dose = 629.25 mg
The milliliters of ceftriaxone correspond to each dose:
Volume (mL) = Dose / Concentration
Volume (mL) = 629.25 mg / 350 mg/mL Volume (mL) ≈ 1.8 mL
So, the nurse should administer approximately 1.8 mL of ceftriaxone per dose.
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