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Ati dosage rn dosage calculation rn mental proctored exam 3.2 assessment
Total Questions : 35
Showing 10 questions, Sign in for moreA nurse is preparing to administer phenobarbital sodium 300 mg IV bolus to a client who is experiencing withdrawal from benzodiazepines. Available is phenobarbital sodium injection 130 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
Step-by-step calculation:
Determinethedosagerequired:300mg
Determinetheconcentrationavailable:130mg/mL
Usetheformula:
Volume(mL)=Requireddose(mg)/Concentration(mg/mL)
Volume(mL)=300mg130mg/mL
Calculatethevolume:
Volume(mL)=2.3077
Roundtothenearesttenth: 2.3mL
A nurse is preparing to administer mirtazapine 45 mg PO to a client. The nurse should identify that this is equivalent to how many g? (Round the answer to the nearest thousandth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Rationale:
To solve,convertmilligrams(mg)tograms(g)stepbystep:
Determinethedosagerequiredinmg:45mg
Understandtheconversionfactor:1g=1000mg
Usetheformula:
45/1000= 0.045g
Calculatetheweight:
Weight(g)=0.045
A nurse is preparing to administer 0.2 g of clozapine PO to a client. Available is clozapine 100 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
Rationale:
How to solve this:
Determinethedosagerequiredinmg:0.2g
Convertgramstomilligrams:
0.2g×1000mg/g=200mg
Availabletabletstrength:100mgpertablet
Calculatethenumberoftablets:
Numberoftablets=Requireddose(mg)/Tabletstrength(mg/tablet)=200mg/100mg/tablet
Result:
Numberoftablets=2
A nurse is preparing to administer fluoxetine 15 mg PO to a client who has premenstrual dysphoric disorder. Available is fluoxetine oral solution 20 mg/5 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
Rationale:
How to solve it:
Determinethedosagerequired:15mg
Determinetheconcentrationavailable:20mg/5mL
Usetheformula:
Volume(mL)=Requireddose(mg)/Concentration(mg/mL)
Converttheconcentrationintoasimplerfraction:
20mg/5mL=4mg/mL
Calculatethevolume:
Volume(mL)=15mg/4mg/mL
Simplifythecalculation:
Volume(mL)=3.75mL
Roundtothenearesttenth:
3.8mL
A nurse is preparing to administer diazepam 2.5 mg PO once a day at bedtime to a client who has anxiety. Available is diazepam oral solution 5 mg/5 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
Rationale:
How to solve this stepbystep:
Determinethedosagerequired:2.5mg
Determinetheconcentrationavailable:5mg/5mL
Simplifytheconcentration:
5mg/5mL=1mg/mL
Usetheformula:
Volume(mL)=Requireddose(mg)/Concentration(mg/mL)
Calculatethevolume:
Volume(mL)=2.5mg/1mg/mL
Volume(mL)=2.5mL
A nurse is preparing to administer venlafaxine 225 mg PO to a client who has generalized anxiety disorder. Available is venlafaxine 75 mg sustained-release capsules. How many capsules 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
Rationale:
How to solve this step by step:
Determinethedosagerequired:225mg
Availablecapsulestrength:75mgpercapsule
Calculatethenumberofcapsules:
Numberofcapsules=Requireddose(mg)/Capsulestrength(mg/capsule)
Numberofcapsules=225mg/75mg/capsule
Result:
Numberofcapsules=3
A nurse is preparing to administer naloxone 0.2 mg IM to a client who is experiencing an opioid overdose. Available is naloxone 0.4 mg/mL for injection. How many mL should the nurse administer? (Round to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Stepbystep calculation:
Determinethedosagerequired:0.2mg
Determinetheconcentrationavailable:0.4mg/mL
Usetheformula:
Volume(mL)=Requireddose(mg)/Concentration(mg/mL)
Volume(mL)=0.2mg/0.4mg/mL
Calculatethevolume:
Volume(mL)=0.5
A nurse is preparing to administer naloxone 40 mcg IM to a client. How many mg should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Step by step calculation:
Determinethedosagerequiredinmcg:40mcg
Understandtheconversionfactor:1mg=1000mcg
Usetheformula:
Weight(mg)=Weight(mcg)1000
Weight(mg)=40mcg/1000mcg
Calculatetheweight:
Weight(mg)=0.04
A nurse is caring for a client who has a prescription for chlorpromazine 1 g/day PO divided into four equal doses. How many mg should the nurse administer with each dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Explanation
Step by step calculation:
Determinethetotaldosageperdaying:1g
Convertgramstomilligrams:
1g= 1000mg
Dividethetotaldailydoseintofourequaldoses:
Doseperadministration=1000mg/4
Calculatethedose:
Doseperadministration=250mg
A nurse is preparing to administer haloperidol 500 mcg PO to a client. How many mg 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
Step by step calculation:
Determinethedosagerequiredinmcg:500mcg
Understandtheconversionfactor:1mg=1000mcg
Usetheformula:
Weight(mg)=Weight(mcg)1000
Weight(mg)=500mcg/1000
Calculatetheweight:
Weight(mg)=0.5
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