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.)
The Correct Answer is ["2.5"]
Rationale:
How to solve this step by step:
Determine the dosage required: 2.5 mg
Determine the concentration available: 5 mg/5 mL
Simplify the concentration:
5 mg/5 mL=1 mg/mL
Use the formula:
Volume (mL)=Required dose (mg)/Concentration (mg/mL)
Calculate the volume:
Volume (mL)=2.5 mg/1 mg/mL
Volume (mL)=2.5 mL
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.045"]
Explanation
Rationale:
To solve,convertmilligrams(mg)tograms(g)stepbystep:
Determinethedosagerequiredinmg:45mg
Understandtheconversionfactor:1g=1000mg
Usetheformula:
45/1000= 0.045g
Calculatetheweight:
Weight(g)=0.045
Correct Answer is ["2"]
Explanation
Step by step calculation:
Determinethetotaldailydosage:900mg
Determinehowmanydosesperday:Every8hoursmeans3dosesperday
Calculatethedosageperadministration:
Doseperadministration=Totaldailydose(mg)/Numberofdosesperday=900mg/3
Doseperadministration=300mg
Availablecapsulestrength:150mgpercapsule
Calculatethenumberofcapsules:
Numberofcapsulesperdose=Requireddoseperadministration(mg)Capsulestrength(mg/capsule)=300mg/150mg/capsule
Numberofcapsulesperdose=2
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