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Ati dosage rn dosage calculation rn mental proctored exam 3.2 assessment ( 35 Questions)
Question 1 of 35 :
A 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.)
Correct Answer: 2.3
Step-by-step calculation:
Determine the dosage required: 300 mg
Determine the concentration available: 130 mg/mL
Use the formula:
Volume (mL)=Required dose (mg)/Concentration (mg/mL)
Volume (mL)=300 mg130 mg/mL
Calculate the volume:
Volume (mL)=2.3077
Round to the nearest tenth: 2.3 mL
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