A nurse is preparing to administer phenytoin 300 mg PO every 12 hr to a client who has a seizure disorder. Available is phenytoin oral suspension 125 mg/5 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.)
The Correct Answer is ["12"]
To calculate the dose of phenytoin oral suspension for a client with a seizure disorder, the nurse needs to use the following formula:
Dose (mL) = Ordered dose (mg) / Concentration (mg/mL)
In this case, the ordered dose is 300 mg and the concentration is 125 mg/5 mL. Therefore, the dose in mL is:
Dose (mL) = 300 mg / (125 mg/5 mL)
Dose (mL) = 300 mg x (5 mL/125 mg)
Dose (mL) = 12 mL
The nurse should round the answer to the nearest whole number, which is 12 mL. The nurse should administer 12 mL of phenytoin oral suspension every 12 hours to the client.
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Related Questions
Correct Answer is ["500"]
Explanation
To calculate the infusion rate for lactated Ringer's solution, the nurse should use the following formula: infusion rate (mL/hr) = volume (mL) / time (hr).
Since the volume is 250 mL and the time is 0.5 hr (30 min), the infusion rate is 250 / 0.5 = 500 mL/hr.
The nurse should set the IV pump to deliver 500 mL/hr of lactated Ringer's solution to the patient.
Correct Answer is ["38"]
Explanation
To calculate the IV flow rate in gtt/min, the nurse needs to use the following formula: IV flow rate (gtt/min) = Volume (mL) x Drop factor (gtt/mL) / Time (min).
In this case, the volume is 150 mL, the drop factor is 15 gtt/mL, and the time is 60 min.
Plugging these values into the formula, we get: IV flow rate (gtt/min) = 150 x 15 / 60.
Simplifying, we get: IV flow rate (gtt/min) = 37.5.
Therefore, the nurse should set the IV flow rate to deliver 38 gtt/min.
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