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A nurse is preparing to administer phenytoin 200 mg via a gastrostomy tube. Available is phenytoin oral suspension 125 mg/5 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.)
Answer and Explanation

The Correct Answer is ["8"]

To calculate the amount of phenytoin oral suspension to administer, we can use the following formula:

Amount to administer (mL) = (Desired dose (mg) / Available dose (mg/mL))

Plugging in the given values:

Amount to administer (mL) = (200 mg / 125 mg/5 mL)

Now, let's solve for the amount to administer:

Amount to administer (mL) = (200 mg / 125 mg/5 mL) = (200 / 125)  5 = 8

So, the nurse should administer 8 mL of phenytoin oral suspension via the gastrostomy tube.


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Related Questions

Correct Answer is ["150"]

Explanation

To calculate the IV pump rate for the 0.9% sodium chloride 1,200 mL IV to infuse over 8 hours, we can use the following formula:

IV pump rate (mL/hr) = Total volume (mL) / Time (hr)

Using the given values:

Total volume = 1,200 mL

Time = 8 hours

Plugging these values into the formula:

IV pump rate = 1,200 mL / 8 hr

IV pump rate = 150 mL/hr

So, the nurse should set the IV pump to deliver 150 mL/hr to infuse the 1,200 mL of 0.9% sodium chloride over 8 hours.

Correct Answer is ["5"]

Explanation

To calculate the amount of megestrol oral suspension that the nurse should administer, we can use the following formula:

Amount to administer (mL) = (Desired dose in mg) / (Amount of drug in 1 mL)

Given:

Desired dose = 200 mg

Amount of drug in 1 mL = 40 mg/mL

Now, let's calculate the amount to administer:

Amount to administer (mL) = 200 mg / 40 mg/mL

Amount to administer (mL) = 5 mL

Rounding to the nearest whole number, the nurse should administer 5 mL of the megestrol oral suspension.

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